Y Combinator

Repl.it lets you start coding in your favorite programming language in 2 seconds; it lets you build and deploy apps right from your browser. The founders wanted to build something to solve their own problem -- back in school they were tired of setting up their development environment on every machine they wanted to code on, and they dreamed of a world where you could just open a tab in the browser and start working. They built Repl.it to give developers access to simple, powerful tools and a community of hackers, aspiring programmers and teachers. They make it possible to learn, practice and build, all in the same place.

The community-building and wellbeing platform for the modern workforce

Codex is a dev tool that enables just-in-time documentation for deep collaboration. Codex is a code collaboration that answers the burning technical questions in a given database, right in IDE.

Bitrise is a mobile app development platform that facilitates continuous integration and delivery (CI/CD) for developers. It enables users to automate integration, testing, and deployment processes through a variety of tools and services, featuring over 300 steps and integrations. By offering a visual workflow editor and automatic repository scanning, Bitrise enhances productivity and accelerates the development lifecycle, allowing developers to build, test, and deploy applications efficiently across both native and hybrid mobile platforms. With a diverse client base that includes startups and large enterprises, Bitrise has established itself as a leading solution in the mobile development space, empowering tens of thousands of developers to improve their workflows and achieve better results.

Evidence is a developer of an open-source business intelligence platform that allows analysts to create reports and dashboards using a markup language. This innovative approach enables users to establish a trusted, version-controlled reporting system, enhancing the reliability and consistency of outputs. The platform's superset of markdown includes a growing library of components, such as charts and graphs, which support SQL analysts in delivering comprehensive business insights. By moving away from traditional drag-and-drop interfaces, Evidence's solution empowers users to efficiently build and manage their reporting processes.

Gallery lets engineers spin up fully-featured cloud environments instantly on their own clouds, regardless of cloud provider or environment architecture. Engineers use Gallery to speed up development and share feature previews with QA and clients without spending hours maintaining custom DevOps workflows.

Warrant develops APIs and infrastructure to help developers add authorization and access control to their apps. It handles the complexity of managing authorization so engineering teams can focus on building their core products.

Codex is a dev tool that enables just-in-time documentation for deep collaboration. Codex is a code collaboration that answers the burning technical questions in a given database, right in IDE.

Fig is a platform for developers that adds visual apps and shortcuts to the terminal. It makes it easy to build tools that make the team more productive. Fig's API allows to run shell commands from simple javascript. Build wrappers around CLIs, custom workflows, or configurations. It was founded in 2020 and is headquartered in San Francisco, California.

Our platform uses trained professionals to analyze medical images and videos, enabling our customers to build new technologies and treatments to detect and fight disease.

We're building the future of designer collaboration. Like developers, designers need advanced tools to match their increasingly collaborative and complex workflows. But unlike developer tools, designer tools for collaboration simply haven’t kept up with the industry. Thanks to a strong engineering background and backing from world-class investors, we're able to finally give designers the sophisticated infrastructure they need to work together at scale. Our mission is to empower design teams of all shapes and sizes to create truly amazing user experiences by working together more closely.

Compose Your AI Chatbot with an ultimate platform to build and launch a customizable chatbot instantly without any coding knowledge

FlutterFlow is an innovative platform designed to simplify mobile application development by leveraging the Flutter framework. It serves as a visual editor that allows teams to create cross-platform applications for both iOS and Android without extensive coding knowledge. By offering a no-code tool, FlutterFlow enables users to build applications significantly faster, enhancing productivity and efficiency in the development process. The platform supports seamless integration with Firebase and provides the option to download the generated Flutter code, thereby catering to the needs of both novice and experienced developers. Overall, FlutterFlow aims to revolutionize the app development landscape by making it more accessible and streamlined.

Prefix builds powerful computer automation software that organizations without dedicated automation teams can manage effectively. We offer a no-code tool for automating most processes, and an execution platform for running them.

Kitemaker UX was built together with game designed. As a result, it responds to every interaction instantaneously across all users, it works offline and comes with a native desktop app. You can operate everything without your hands leaving the keyboard and through our built-in command line.

Web Platform to create your own smart virtual agents to automate online store from beginning to end and can be integrated with your chatting app and website.

Spline is a company that offers a design tool for creating and publishing three-dimensional web experiences without the need for coding. Its platform allows users to easily build and iterate on designs, producing production-ready results. The tool supports the creation of three-dimensional text and basic geometric shapes, while also providing options for editing materials, importing models, and controlling design outcomes. This functionality enables designers to construct simple and cost-effective objects efficiently, streamlining the design process for web applications.

Mono is a financial data infrastructure company based in Nigeria, founded in 2020. It develops an application programming interface (API) platform that enables digital businesses in Africa to access customers' financial and identity data. Mono's services include generating bank statements, verifying account details, initiating payments, and conducting credit checks. The company serves a diverse range of clients, including fintech firms such as Carbon, Flutterwave, Indicina, and Renmoney, as well as various developers. Through its innovative platform, Mono aims to enhance financial accessibility and streamline transactions for businesses across the continent.

Openbase is the first platform to offer user reviews for packages, powerful insights, and categorization for open-source packages - so developers can choose the right package every time. It was founded in 2019 and is based in San Francisco, California.

Mono is a financial data infrastructure company based in Nigeria, founded in 2020. It develops an application programming interface (API) platform that enables digital businesses in Africa to access customers' financial and identity data. Mono's services include generating bank statements, verifying account details, initiating payments, and conducting credit checks. The company serves a diverse range of clients, including fintech firms such as Carbon, Flutterwave, Indicina, and Renmoney, as well as various developers. Through its innovative platform, Mono aims to enhance financial accessibility and streamline transactions for businesses across the continent.

Waydev analyzes your codebase from Github, Gitlab, Azure DevOps & Bitbucket to help you bring out the best in your engineers work.

Raycast is a developer of a command bar software intended to assist developers to control their tools. The company's software offers a search bar to quickly search commands and the built-in store to discover and install extensions such as Jira or GitHub, enabling clients to make easy access to various applications.

MemberStack lets you build members-only websites, dashboards, web apps, and intranets with your favorite web design tools.

Basedash Inc. is a company that specializes in providing internal tools designed to enhance database management for businesses. Founded in 2019 and based in Dover, Delaware, the company offers a suite of solutions that includes an admin panel, SQL graphical user interface, user dashboard, customer support features, and a KPI dashboard. Recognizing that many businesses either struggle with building custom tools or resort to using inadequate applications, Basedash aims to deliver a polished and flexible internal tool that meets the core needs of various organizations. This focus on usability and efficiency positions Basedash as a valuable resource for modern companies seeking to streamline their internal operations.

Openbase is the first platform to offer user reviews for packages, powerful insights, and categorization for open-source packages - so developers can choose the right package every time. It was founded in 2019 and is based in San Francisco, California.

Screen and code sharing platform for developers.

Fig is a platform for developers that adds visual apps and shortcuts to the terminal. It makes it easy to build tools that make the team more productive. Fig's API allows to run shell commands from simple javascript. Build wrappers around CLIs, custom workflows, or configurations. It was founded in 2020 and is headquartered in San Francisco, California.

Today, every company is a software company - but software developers make up less than 1% of the population. We're building a new visual programming language for anyone to become part of the future of software development. Paragon is a low-code platform that makes it easy to build product integrations and deliver the features your customers want, faster. Paragon's visual workflow editor provides building blocks like triggers, cloud functions, and API integration - so you can just focus on your core business logic. Once deployed, Paragon workflows provide end-to-end data visibility for easy debugging, and automatically scale to provide enterprise-grade performance with zero maintenance. Backed by world-class investors like Y Combinator and Village Global, our long term vision is to democratize software development by enabling engineers and non-engineers to build products together seamlessly.

Aspect offers a platform for website creation where users can publish or download their custom websites.

Today, every company is a software company - but software developers make up less than 1% of the population. We're building a new visual programming language for anyone to become part of the future of software development. Paragon is a low-code platform that makes it easy to build product integrations and deliver the features your customers want, faster. Paragon's visual workflow editor provides building blocks like triggers, cloud functions, and API integration - so you can just focus on your core business logic. Once deployed, Paragon workflows provide end-to-end data visibility for easy debugging, and automatically scale to provide enterprise-grade performance with zero maintenance. Backed by world-class investors like Y Combinator and Village Global, our long term vision is to democratize software development by enabling engineers and non-engineers to build products together seamlessly.

Operator is building a low-code platform that makes it easy to build business applications. With Operator, analysts can build software solutions to common problems and bottlenecks without worrying about managing data or setting up integrations.

ClassEngine is a studio management platform for music, dance, gymnastics, and childcare centers.

Embrace is the only performance monitoring and debugging platform built for mobile apps. Whether an unsolved crash, a bug in the checkout flow, an error log without resolution, or a startup that takes too long, developers need to find every issue and not take days. With Embrace, mobile teams instantly look up any user, see every user’s sessions on command, and understand what happened seconds and minutes before any error of any type.

We're building the future of designer collaboration. Like developers, designers need advanced tools to match their increasingly collaborative and complex workflows. But unlike developer tools, designer tools for collaboration simply haven’t kept up with the industry. Thanks to a strong engineering background and backing from world-class investors, we're able to finally give designers the sophisticated infrastructure they need to work together at scale. Our mission is to empower design teams of all shapes and sizes to create truly amazing user experiences by working together more closely.

Refinery Labs Inc. is a Seattle-based company founded in 2014, specializing in a web-based software platform tailored for software developers. The platform features a drag-and-drop interface that allows users to deploy new functionalities through linkable code blocks, significantly enhancing development speed. It leverages serverless technology to facilitate the integration of various AWS services, including AWS Lambda and API Gateway, which streamlines the software creation, testing, and deployment processes. Additionally, Refinery Labs provides tools for mood boards and concept delivery aimed at the TV, film, video production, and animation sectors, catering to a diverse range of creative and technical needs.

Draftbit is a new way to build cross-platform, native iOS and Android apps in minutes instead of months. Whether you're a designer or developer, with Draftbit you can design your app visually, and then export clean, well-documented code and libraries that give you full control.

Midtype's SaaS Development Kit (SaaSDK) supplies the building blocks for developing SaaS products. Manage users, enable payments, and integrate with your favorite services, so you can stay focused on shipping features your customers will love.

Embrace is the only performance monitoring and debugging platform built for mobile apps. Whether an unsolved crash, a bug in the checkout flow, an error log without resolution, or a startup that takes too long, developers need to find every issue and not take days. With Embrace, mobile teams instantly look up any user, see every user’s sessions on command, and understand what happened seconds and minutes before any error of any type.

“Better code search,” currently for Swift, TypeScript and Javascript. Whereas many code environments only do plaintext search, Metacode sorts results by relevance, displays code in the context of code around it and allows you to filter results by keyword. The company says more than 700 engineers from companies like Pinterest and VueJS are currently using it. The cost is $25 per month per engineer.

CodeStream puts team chat directly into today’s most popular IDEs, making it easier for developers to talk about code and write software together. Build for coders by coders, its service helps software teams accelerate their development cycles and reduce technical debt through faster, easier communication.

Tara AI, founded in 2016 and based in San Jose, California, offers a platform that connects projects with freelance programmers. The company aims to simplify the software development process, addressing the challenges of traditional tools that can be complex and time-consuming to configure. Tara AI's platform is designed for modern, cross-functional teams, enhancing their ability to deliver projects with greater predictability. Since launching in public beta in April 2020, it has been utilized by thousands of engineers and teams, streamlining their workflows and improving project outcomes.

Bitrise is a mobile app development platform that facilitates continuous integration and delivery (CI/CD) for developers. It enables users to automate integration, testing, and deployment processes through a variety of tools and services, featuring over 300 steps and integrations. By offering a visual workflow editor and automatic repository scanning, Bitrise enhances productivity and accelerates the development lifecycle, allowing developers to build, test, and deploy applications efficiently across both native and hybrid mobile platforms. With a diverse client base that includes startups and large enterprises, Bitrise has established itself as a leading solution in the mobile development space, empowering tens of thousands of developers to improve their workflows and achieve better results.

Comradery is a customizable platform that’s built from the ground up to help communities thrive.

Dockup develops a platform for engineering industry to create an on demand-staging environment with unique URLs and delivers them to Slack. The platform provides automated deployments, automated quality assurance checklists, and slack integration. Dockup is headquartered in the United States.

Our platform uses trained professionals to analyze medical images and videos, enabling our customers to build new technologies and treatments to detect and fight disease.

Supernova.io is a design-to-code platform based in Prague, Czech Republic, that streamlines the app development process for mobile designers and developers. The platform, known as Supernova Studio, allows users to convert mobile application designs from tools like Sketch into native code rapidly. It generates production-ready components, including buttons, images, and tables, while utilizing advanced algorithms for automatic asset export, localization, and animations without requiring a developer's intervention. Additionally, Supernova Cloud serves as a collaboration platform, enabling designers and developers to gather feedback directly from clients and team members while reviewing functional, working applications. This approach facilitates an efficient iterative process, bridging the gap between design and front-end development, and significantly reducing the time spent on tedious tasks.

Windsor is the platform to figure out who your users are and what they do

A cross-platform app development tool used for rendering HTML UI within games and desktop applications. The company’s goal is to replace Chromium by providing a GPU-accelerated proprietary renderer. Ultralight says it will be compatible with most programming languages.

DreamCraft Entertainment Inc. develops a game creation and monetization platform that lets video game modders to create and monetize games without programming. Its platform allows game modders to create games without coding or drawing; and reach players across PC and mobile. The company was founded in 2018 and is based in San Mateo, California.

Key Values Helps software developers find teams that share their values.

From MIT's App Inventor and YCombinator's W2016 batch, Thunkable allows anyone to build powerful native apps. With Thunkable, it's simple to design, and simple to code-- simply drag and drop to create fast, native, reliable apps. You don't need to download large development suites, command-line kits, or simulators. You can use the many built-in app templates as they are, or make changes. Make your changes online and see them on your device instantly with the Thunkable mobile app. Upload your apps directly to the Play Store or send them to friends!

User Hero is a software platform that allows UX researchers and Product Managers organize all of their qualitative information. As a repository, we allow you to run reports and analytics on your qualitative data to extract insights, highlight trends, and track features related to user feedback.

Draftbit is a new way to build cross-platform, native iOS and Android apps in minutes instead of months. Whether you're a designer or developer, with Draftbit you can design your app visually, and then export clean, well-documented code and libraries that give you full control.

Repl.it lets you start coding in your favorite programming language in 2 seconds; it lets you build and deploy apps right from your browser. The founders wanted to build something to solve their own problem -- back in school they were tired of setting up their development environment on every machine they wanted to code on, and they dreamed of a world where you could just open a tab in the browser and start working. They built Repl.it to give developers access to simple, powerful tools and a community of hackers, aspiring programmers and teachers. They make it possible to learn, practice and build, all in the same place.

CodeStream puts team chat directly into today’s most popular IDEs, making it easier for developers to talk about code and write software together. Build for coders by coders, its service helps software teams accelerate their development cycles and reduce technical debt through faster, easier communication.

Tara AI, founded in 2016 and based in San Jose, California, offers a platform that connects projects with freelance programmers. The company aims to simplify the software development process, addressing the challenges of traditional tools that can be complex and time-consuming to configure. Tara AI's platform is designed for modern, cross-functional teams, enhancing their ability to deliver projects with greater predictability. Since launching in public beta in April 2020, it has been utilized by thousands of engineers and teams, streamlining their workflows and improving project outcomes.

Assembly is a web collaboration platform that enables users to develop apps, widgets, platforms, and APIs with the help of other users. It is a global community that connects designers, developers, coders, writers, marketers, and more with each other and enables them retain the ownership of their software and receive profit for their contributions. The entire process is a collaborative effort, including vision, development, design, and marketing. Each product has App Coins, which are earned by contributing work. Assembly was launched by Dave Newman, Matthew Deiters, and Chris Lloyd in 2013 and is operated from California, United States.

Gopher is a platform for building, discovering and using purely email-based applications. No plugins. No downloads. No switching email programs.

Retool is a developer of a platform that enables businesses to create custom tools without the need for programming knowledge. The platform allows users to build interfaces that facilitate the display and manipulation of data efficiently and accurately. By providing customizable workflows, Retool empowers operational development teams to enhance their productivity, enabling businesses to concentrate on their core products and expertise. This approach simplifies the tool-building process, making it accessible to a broader range of users and helping organizations streamline their operations.

Pilot operates a marketplace where companies hire contract developers and designers for their project work. The company helps power companies of all shapes and sizes, from up-and-coming startups to growing private companies across every industry. The company was founded in 2009 and is based in Poland.

Bitrise is a mobile app development platform that facilitates continuous integration and delivery (CI/CD) for developers. It enables users to automate integration, testing, and deployment processes through a variety of tools and services, featuring over 300 steps and integrations. By offering a visual workflow editor and automatic repository scanning, Bitrise enhances productivity and accelerates the development lifecycle, allowing developers to build, test, and deploy applications efficiently across both native and hybrid mobile platforms. With a diverse client base that includes startups and large enterprises, Bitrise has established itself as a leading solution in the mobile development space, empowering tens of thousands of developers to improve their workflows and achieve better results.

Dost builds software, audio content, and toolkits that make it easy, fun and addictive for parents of any literacy level to boost their child’s early development.

Bitrise is a mobile app development platform that facilitates continuous integration and delivery (CI/CD) for developers. It enables users to automate integration, testing, and deployment processes through a variety of tools and services, featuring over 300 steps and integrations. By offering a visual workflow editor and automatic repository scanning, Bitrise enhances productivity and accelerates the development lifecycle, allowing developers to build, test, and deploy applications efficiently across both native and hybrid mobile platforms. With a diverse client base that includes startups and large enterprises, Bitrise has established itself as a leading solution in the mobile development space, empowering tens of thousands of developers to improve their workflows and achieve better results.

Scaphold is the world's most powerful GraphQL as a service platform. The platform will provide a number of services including push notifications, analytics, file storage, custom code, multiple environments, and more to allow developers to build mobile, web, and IOT applications. Their innovative use of GraphQL is the big game changer here. They are convinced that it’s the future of APIs and they want to make it readily accessible to everyone else.

Scaphold is the world's most powerful GraphQL as a service platform. The platform will provide a number of services including push notifications, analytics, file storage, custom code, multiple environments, and more to allow developers to build mobile, web, and IOT applications. Their innovative use of GraphQL is the big game changer here. They are convinced that it’s the future of APIs and they want to make it readily accessible to everyone else.

BulldozAIR, Y Combinator and STATION F backed startup, is a construction project management platform used by large generalist corporates to collaborate with their construction contractors and monitor the progress of their construction projects from their office. This web and mobile platform is used by industry leaders worldwide from real estate, energy, retail, transportation, infrastructure, and manufacturing. Some clients include such as Carrefour, Total, Air Liquide, Vinci, Bouygues, Arkema, CHANEL and SNCF to name a few. BulldozAIR is based in Station F, the biggest startup incubator in the world and it operates internationally.

Opsolutely allows development teams to understand their infrastructure at a glance and control it with ease.

Expo lets developers build universal native apps that work across Android, iOS, and the web by writing them once in just JavaScript.

Scaphold is the world's most powerful GraphQL as a service platform. The platform will provide a number of services including push notifications, analytics, file storage, custom code, multiple environments, and more to allow developers to build mobile, web, and IOT applications. Their innovative use of GraphQL is the big game changer here. They are convinced that it’s the future of APIs and they want to make it readily accessible to everyone else.

UpLabs Inc. operates a website that serves as a resource hub for designers and developers seeking inspiration and tools to create applications and websites. Established in 2015 and based in Mountain View, California, the platform allows users to browse daily showcases featuring material design for Android, iOS, and OS X, as well as various web resources. It provides a space for designers and developers to search for specific user interface elements, share their own work—such as designs, libraries, and code snippets—as inspiration or freebies, and sell products like themes, templates, and icons. Through its curated content, UpLabs aims to foster collaboration and creativity within the design and development community.

From MIT's App Inventor and YCombinator's W2016 batch, Thunkable allows anyone to build powerful native apps. With Thunkable, it's simple to design, and simple to code-- simply drag and drop to create fast, native, reliable apps. You don't need to download large development suites, command-line kits, or simulators. You can use the many built-in app templates as they are, or make changes. Make your changes online and see them on your device instantly with the Thunkable mobile app. Upload your apps directly to the Play Store or send them to friends!

The simplest way for businesses to test, manage, and deploy enterprise in-house VR apps at scale.

SourceDNA, Inc. is a technology company based in Oakland, California, founded in 2011. It specializes in application store intelligence, providing tools that automatically scan iOS and Android applications to identify code usage and track the market share of software development kits (SDKs). The company offers a platform called Searchlight, which allows users to analyze and monitor applications for security vulnerabilities and quality issues. SourceDNA's services enable developers and service providers to understand who is utilizing their code by continuously scanning app stores and binaries for matches. The analytics software developed by SourceDNA acts as a code watchdog, assessing the security of various platforms, including mobile devices, game consoles, and micro-controller firmware, thereby assisting users in making informed decisions about their software development and security practices.

Developer of a SaaS customer engagement platform designed for the world's leading enterprise brands to improve and personalize their apps, websites, and customer communication channels. The Company's platform unifies the digital customer journey, product optimization, and marketing automation in a single, AI driven application. This empowers modern engineering and marketing teams to create robust customer experiences, using contextual data and AI orchestration to optimize customer engagement, conversion and revenue.

Treeline is a United States-based company that specializes in designing and developing software for creating backend applications. Its platform simplifies the process of building custom, high-performance applications for Node.js, allowing users to develop enterprise-grade backends rapidly and efficiently. With Treeline's tools, users can accelerate application development, completing projects in hours rather than months.

Tara AI, founded in 2016 and based in San Jose, California, offers a platform that connects projects with freelance programmers. The company aims to simplify the software development process, addressing the challenges of traditional tools that can be complex and time-consuming to configure. Tara AI's platform is designed for modern, cross-functional teams, enhancing their ability to deliver projects with greater predictability. Since launching in public beta in April 2020, it has been utilized by thousands of engineers and teams, streamlining their workflows and improving project outcomes.

HyperPad allows non technical users like artists to create amazing mobile games then publish them to the App Store as native apps.

Developer of a SaaS customer engagement platform designed for the world's leading enterprise brands to improve and personalize their apps, websites, and customer communication channels. The Company's platform unifies the digital customer journey, product optimization, and marketing automation in a single, AI driven application. This empowers modern engineering and marketing teams to create robust customer experiences, using contextual data and AI orchestration to optimize customer engagement, conversion and revenue.

CodeNow is a nonprofit focused on teaching under-represented youth to code. They provide free, out-of-school training hosted at local tech companies.

Appcubator has launched to allow users to create their own web applications with drag and drop, text inserts and custom themes, rather than having to endure the arduous process of learning to create a full-functioning website or hire a contractor.

Instant sandboxed server environments

Rainforest QA offers modern testing for web and mobile apps. The Rainforest platform delivers all the resources needed to do fast, efficient QA. Rainforest combines a massive crowd of human testers with algorithmic management and VMs to execute web and mobile regression testing for continuous deployment. The best dev teams from companies like Intuit, Consumer Affairs, Oracle, and IBM use Rainforest’s platform and API to execute and scale their QA activities more effectively.

Light Table is a new interactive IDE that lets you modify running programs and embed anything from websites to games. It provides the real time feedback we need to not only answer questions about our code, but to understand how our programs really work.

Test your app on a large pool of Android and iOS versions and devices. No need to constantly buy and upgrade your devices. Testmunk ensures complete device and OS coverage currently available on the market. Devices are non-jailbroken. We support native and hybrid apps.

Coderwall is a collaborative learning platform for software developers to improve their programming knowledge. It is based in San Francisco, California.

LVL6 creates social mobile games on Android and iOS.

Firebase was acquired by Google in 2014 and has become Googles flagship mobile platform for developers building iOS, Android, and Web apps. Firebase has been bolstered by 3 acquisitions since joining Google: Fabric/Crashlytics, Divshot, and LaunchKit. Firebase is used by >1,000,000 developers and is made up of complementary features that you can mix-and-match to fit your needs including: Free & unlimited Analytics, a Realtime Database, User Authentication, Crash Reporting, Push Notifications, and more. Learn more at http://www.firebase.com

Driving the momentum behind GraphQL, its Data Graph Platform helps developers, startups, and enterprises get the most out of GraphQL. Apollo builds open source tools and commercial services used by thousands of developers in production and has cultivated a strong community around GraphQL. With the Apollo Data Graph Platform, customers like Expedia, Airbnb, Audi, SurveyMonkey, and others rapidly implement GraphQL, consistent with industry best practices, providing their customers with the high-quality, personalized digital experiences they expect—on all of their devices. Based in San Francisco, Apollo is backed by Andreessen Horowitz, Matrix Partners, Webb Investment Network, and Trinity Ventures.

Clutch offers innovative tools designed to enhance the efficiency of website and mobile application development. By streamlining the process of creating user interfaces, Clutch enables designers and developers to collaborate seamlessly without the need for time-consuming code conversion. The platform features a visual design canvas called "Clutch Creator," which facilitates real-time teamwork, akin to a Google Docs experience, allowing multiple users to work on the same project simultaneously. Additionally, Clutch provides a component engine and marketplace that empower professionals to create and share reusable components that integrate easily with existing backends and APIs. This integrated approach addresses common challenges in mobile app development, such as A/B testing and rapid iteration, ultimately offering a more effective solution for building front-ends than traditional tools available in the market.

Proxino is a cloud platform for monitoring and debugging client-side JavaScript.

Upverter, Inc. is a Toronto-based company that provides a cloud-based electronics design platform aimed at empowering hardware engineers. Founded in 2010, Upverter offers a comprehensive suite of tools for schematic capture and PCB layout, facilitating real-time design collaboration, automated version control, and work-sharing capabilities. The platform is designed for a diverse audience, including hobbyists, students, and the open-source hardware community. Key features include in-design markup, annotation, and issue tracking, which enhance productivity for engineers. Additionally, Upverter provides a Parts Concierge service, acting as a virtual assistant to support engineers in their design processes. The company aims to streamline hardware development by enabling users to build electronics with the efficiency typically associated with software development.

AppHarbor is a .NET Platform-as-a-Service. Developers push code to AppHarbor using either Git or Mercurial. AppHarbor then builds the code and runs any unit tests. If everything checks out, the code is deployed to AppHarbor's scalable cloud platform. AppHarbor lets developers spend their time coming up with ideas and developing applications, not patching servers, worrying about deployment, messing with configuration files, or scaling.

Apportable Inc. is a technology company based in San Francisco, California, that specializes in porting iOS games to Android automatically. Founded in 2010, the company has developed a software engine that enables iOS developers to convert their applications to Android without the need to rewrite their original Objective-C or C++ code. This streamlined process eliminates the hassle of maintaining separate code bases, allowing developers to focus on creating their games. Apportable also offers SpriteBuilder, a development environment for creating native cross-platform 2D games using Objective-C or Swift. The effectiveness of Apportable's platform is evident in the success of the apps it powers, which have consistently performed well in various app stores, garnering widespread user satisfaction.

DotCloud is a 2nd-generation platform-as-a-service, and is the commercial entity behind Docker.io. Docker is an open source engine that makes it possible to pack, ship, and run any application as a lightweight container.

NudgePad is an IDE in your browser

The BaseShield App Store is a distribution platform for Windows software. Users can download and install applications with one click, and each application runs in its own secure virtual space. It is an open platform where third party developers can publish their applications. Developers who deploy their apps this way can rely on the built-in installer, update function, security and eventually payment processing.

Trigger, a San Francisco, CA-based company that has just launched its cross-platform mobile development framework targeted at web developers who want to be able to create native mobile apps.

Trigger, a San Francisco, CA-based company that has just launched its cross-platform mobile development framework targeted at web developers who want to be able to create native mobile apps.

Heroku is a cloud application platform designed for developers, enabling them to deploy, scale, and manage applications without the complexities of server management. Founded in July 2007 in San Francisco, California, Heroku supports multiple programming languages, including Ruby, Java, Node.js, Clojure, Python, PHP, Perl, and Scala. The platform operates using a system of application containers, known as “dynos,” which are distributed across a grid of servers. This architecture allows for efficient application management and scalability. Acquired by Salesforce in 2011, Heroku continues to function independently, providing a user-friendly environment for software development and collaboration.

AppJet was an online programming tool designed for building simple web applications, founded by former MIT students and backed by Y Combinator. The platform aimed to streamline the web application development process using a web-based text editor that employed JavaScript for both server and client-side programming. It provided users with various code libraries, including those for database management and Facebook API integration. To efficiently host user applications, AppJet developed a unique application virtualization system that managed processor allocation and prevented excessive resource consumption. While the platform was innovative in its approach to web app development, it appears to be inactive today, with only some legacy downloads available.