- [DreamFactory](https://www.dreamfactory.com/) - Turns any SQL/NoSQL/Structured data into Restful API. ([Source Code](https://github.com/dreamfactorysoftware/dreamfactory)) `Apache-2.0``PHP`
- [form.io](https://form.io) - A REST API building platform that utilizes a drag & drop form builder, and is application framework agnostic. Contains open source and enterprise version. ([Demo](https://portal.form.io), [Source Code](https://github.com/formio)) `MIT``Nodejs`
- [Fusio](https://www.fusio-project.org/) - Open-source API management platform which helps to build and manage REST APIs. ([Demo](https://fusio-project.org/demo), [Source Code](https://github.com/apioo/fusio)) `AGPL-3.0``PHP`
- [Hapttic](https://github.com/jsoendermann/hapttic) - Simple HTTP server that forwards all requests to a shell script to handle webhooks you receive. `Apache-2.0``Go`
- [Hasura](https://hasura.io) - Fast, instant realtime GraphQL APIs on Postgres with fine grained access control, also trigger webhooks on database events. ([Source Code](https://github.com/hasura/graphql-engine)) `Apache-2.0``Haskell`
- [Hoppscotch](https://hoppscotch.io) - A free, fast and beautiful API request builder. ([Source Code](https://github.com/hoppscotch/hoppscotch)) `MIT``Nodejs/Vue/Nuxt`
- [Kong](https://konghq.com/kong/) - The World’s Most Popular Open Source Microservice API Gateway and Platform. ([Source Code](https://github.com/Kong/kong)) `Apache-2.0``Lua`
- [Lura](https://luraproject.org/) - Open source High-Performance API Gateway. ([Source Code](https://github.com/luraproject/lura)) `Apache-2.0``Go`
- [Para](https://paraio.org) - Flexible and modular backend framework/server for object persistence, API development and authentication. ([Source Code](https://github.com/erudika/para)) `Apache-2.0``Java`
- [Pizzly](https://github.com/bearer/pizzly) - Open-source API Integrations Manager that provides everything a developer needs to interact with OAuth based APIs. `MIT``Nodejs`
- [Tyk](https://tyk.io) - Fast and scalable open source API Gateway. Out of the box, Tyk offers an API Management Platform with an API Gateway, API Analytics, Developer Portal and API Management Dashboard. ([Source Code](https://github.com/TykTechnologies/tyk)) `MPL-2.0``Go`
### Software Development - Documentation Generators
_Related: [Static site generators](#static-site-generators)_
- [Docstore](https://git.haldean.org/docstore/) - Static document hosting without any server-side processing, does not require you to recompile every time you change an article. Clone the repository and add articles in the text/ directory to get started. ([Source Code](https://github.com/haldean/docstore)) `BSD-3-Clause``Javascript`
- [Flatdoc](https://ricostacruz.com/flatdoc/) - Small Javascript file that fetches Markdown files and renders them as full pages. `MIT``Javascript`
- [markdown-tree](https://github.com/mil/markdown-tree) - Serve a hierarchy / tree directory of markdown files. Use intended for small sites built in markdown. `MIT``Ruby`
- [Read the Docs](https://readthedocs.org/) - Host documentation, making it fully searchable and easy to find; import your docs using any major version control system, including Mercurial, Git, Subversion, and Bazaar. ([Demo](https://readthedocs.org/projects/), [Source Code](https://github.com/readthedocs/readthedocs.org)) `MIT``Python`
- [Appwrite](https://appwrite.io) - End to end backend server for web, native, and mobile developers 🚀. ([Source Code](https://github.com/appwrite/appwrite)) `BSD-3-Clause``PHP`
- [fx](https://github.com/metrue/fx) - fx is a tool to help you do Function as a Service with painless on your own servers. `MIT``Go`
- [IronFunctions](https://github.com/iron-io/functions) - The serverless microservices platform by [iron.io](https://www.iron.io/). `Apache-2.0``Go`
- [LocalStack](https://localstack.cloud/) - LocalStack is a fully functional local AWS cloud stack. This includes Lambda for serverless computation. ([Source Code](https://github.com/localstack/localstack)) `Apache-2.0``Python/Other`
- [OpenFaaS](https://www.openfaas.com/) - Serverless Functions Made Simple for Docker & Kubernetes. ([Source Code](https://github.com/openfaas/faas)) `MIT``Go`
- [Appsmith](https://www.appsmith.com/) - Cloud or self-hosted open-source platform to build admin panels, CRUD apps and workflows. Build everything you need, 10x faster. ([Source Code](https://github.com/appsmithorg/appsmith)) `Apache-2.0``Java/Docker`
- [Atheos](https://www.atheos.io) - Web-based IDE framework with a small footprint and minimal requirements, continued from Codiad. ([Source Code](https://github.com/Atheos/Atheos)) `MIT``PHP`
- [Babelfish](https://github.com/bblfsh/bblfshd) - Self-hosted server for source code parsing. It can parse any file, in any supported language, extract an Abstract Syntax Tree from it, and convert it to a Universal Abstract Syntax Tree which can enable further analysis and transformation. `GPL-3.0``Go`
- [Budibase](https://www.budibase.com) - Build and automate internal tools, admin panels, dashboards, CRUD apps, and more, in minutes. Budibase is the open source alternative to Outsystems, Retool, Mendix, Appian. ([Source Code](https://github.com/Budibase/budibase)) `GPL-3.0``Nodejs`
- [Code-Server](https://coder.com/) - Visual Studio Code in the browser, hosted on a remote server. ([Source Code](https://github.com/cdr/code-server)) `MIT``Nodejs/Docker`
- [Eclipse Che](https://www.eclipse.org/che/) - Open source workspace server and cloud IDE. ([Source Code](https://github.com/eclipse/che)) `EPL-1.0``Docker/Java`
- [Gitpod](https://gitpod.io/) - Online IDE for GitHub and GitLab. ([Demo](https://gitpod.io/#https://github.com/awesome-selfhosted/awesome-selfhosted), [Source Code](https://github.com/gitpod-io/self-hosted)) `EPL-2.0``Go/Docker`
- [Hakatime](https://github.com/mujx/hakatime) - WakaTime server implementation with analytics dashboard. `Unlicense``Haskell`
- [HttPlaceholder](https://github.com/dukeofharen/httplaceholder) - Quickly mock away any webservice using HttPlaceholder. HttPlaceholder lets you specify what the request should look like and what response needs to be returned. `MIT``C#`
- [ICEcoder](https://icecoder.net/) - ICEcoder is a web IDE / browser based code editor, which allows you to develop websites directly within the web browser. ([Demo](http://demo.icecoder.net/ICEcoder/), [Source Code](https://github.com/icecoder/ICEcoder)) `MIT``PHP`
- [JS Bin](https://jsbin.com/) - Open source collaborative web development debugging tool. ([Source Code](https://github.com/jsbin/jsbin)) `MIT``Nodejs`
- [Judge0 CE](https://judge0.com) - Open source API to compile and run source code. ([Source Code](https://github.com/judge0/judge0)) `GPL-3.0``Ruby`
- [JupyterLab](https://jupyterlab.github.io/jupyterlab/) - Web-based environment for interactive and reproducible computing. ([Demo](https://mybinder.org/v2/gh/jupyterlab/jupyterlab-demo/try.jupyter.org?urlpath=lab), [Source Code](https://github.com/jupyterlab/jupyterlab/)) `BSD-3-Clause``Python/Docker`
- [Lowdefy](https://www.lowdefy.com/) - Build internal tools, BI dashboards, admin panels, CRUD apps and workflows in minutes using YAML / JSON on an self-hosted, open-source platform. Connect to your data sources, host via Serverless, Netlify or Docker. ([Source Code](https://github.com/lowdefy/lowdefy)) `Apache-2.0``Nodejs`
- [ML Workspace](https://github.com/ml-tooling/ml-workspace) - All-in-one web-based IDE for machine learning and data science. `Apache-2.0``Docker`
- [Regexr](https://regexr.com/) - RegExr is a HTML/JS based tool for creating, testing, and learning about Regular Expressions. ([Source Code](https://github.com/gskinner/regexr)) `MIT``Nodejs`
- [RStudio Server](https://www.rstudio.com/products/rstudio/#Server) - Web browser based IDE for R. ([Source Code](https://github.com/rstudio/rstudio)) `AGPL-3.0``Java/C++`
- [Slingcode](https://slingcode.net/) - Web app IDE and computing platform in a single static HTML file. ([Demo](https://slingcode.net/slingcode.html), [Source Code](https://github.com/chr15m/slingcode/)) `MIT``HTML`
- [sourcegraph](https://sourcegraph.com) - Sourcegraph is a fast, open-source, fully-featured code search and navigation engine written in Go. ([Source Code](https://github.com/sourcegraph/sourcegraph)) `Apache-2.0``Go`
- [Wakapi](https://wakapi.dev/) - Tracking tool for coding statistics, compatible with WakaTime. ([Source Code](https://github.com/muety/wakapi)) `GPL-3.0``Go`
- [Localizer](https://localizer.dev) - Free self-hosted open-source crowd-translating service for your product. ([Demo](https://localize.todorant.com), [Source Code](https://github.com/backmeupplz/localizer-backend)) `MIT``Nodejs/Docker`
- [Weblate](https://weblate.org) - Web-based translation tool with tight version control integration. ([Demo](https://demo.weblate.org), [Source Code](https://github.com/WeblateOrg/weblate)) `GPL-3.0``Python`
- [Zanata](http://zanata.org) - Web-based translation platform for translators, content creators and developers to manage localisation projects. ([Source Code](https://github.com/zanata/zanata-platform)) `GPL-2.0``Java`
- [UVDesk](https://www.uvdesk.com/) - UVDesk community is a service oriented, event driven extensible opensource helpdesk system that can be used by your organization to provide efficient support to your clients effortlessly whichever way you imagine. ([Demo](https://demo.uvdesk.com/), [Source Code](https://github.com/uvdesk/community-skeleton)) `MIT``PHP`
- [Appsmith](https://www.appsmith.com/) - Cloud or self-hosted open-source platform to build admin panels, CRUD apps and workflows. Build everything you need, 10x faster. ([Source Code](https://github.com/appsmithorg/appsmith)) `Apache-2.0``Java/Docker`
- [Atheos](https://www.atheos.io) - Web-based IDE framework with a small footprint and minimal requirements, continued from Codiad. ([Source Code](https://github.com/Atheos/Atheos)) `MIT``PHP`
- [Babelfish](https://github.com/bblfsh/bblfshd) - Self-hosted server for source code parsing. It can parse any file, in any supported language, extract an Abstract Syntax Tree from it, and convert it to a Universal Abstract Syntax Tree which can enable further analysis and transformation. `GPL-3.0``Go`
- [Budibase](https://www.budibase.com) - Build and automate internal tools, admin panels, dashboards, CRUD apps, and more, in minutes. Budibase is the open source alternative to Outsystems, Retool, Mendix, Appian. ([Source Code](https://github.com/Budibase/budibase)) `GPL-3.0``Nodejs`
- [Code-Server](https://coder.com/) - Visual Studio Code in the browser, hosted on a remote server. ([Source Code](https://github.com/cdr/code-server)) `MIT``Nodejs/Docker`
- [Eclipse Che](https://www.eclipse.org/che/) - Open source workspace server and cloud IDE. ([Source Code](https://github.com/eclipse/che)) `EPL-1.0``Docker/Java`
- [Gitpod](https://gitpod.io/) - Online IDE for GitHub and GitLab. ([Demo](https://gitpod.io/#https://github.com/awesome-selfhosted/awesome-selfhosted), [Source Code](https://github.com/gitpod-io/self-hosted)) `EPL-2.0``Go/Docker`
- [Hakatime](https://github.com/mujx/hakatime) - WakaTime server implementation with analytics dashboard. `Unlicense``Haskell`
- [HttPlaceholder](https://github.com/dukeofharen/httplaceholder) - Quickly mock away any webservice using HttPlaceholder. HttPlaceholder lets you specify what the request should look like and what response needs to be returned. `MIT``C#`
- [ICEcoder](https://icecoder.net/) - ICEcoder is a web IDE / browser based code editor, which allows you to develop websites directly within the web browser. ([Demo](http://demo.icecoder.net/ICEcoder/), [Source Code](https://github.com/icecoder/ICEcoder)) `MIT``PHP`
- [JS Bin](https://jsbin.com/) - Open source collaborative web development debugging tool. ([Source Code](https://github.com/jsbin/jsbin)) `MIT``Nodejs`
- [Judge0 CE](https://judge0.com) - Open source API to compile and run source code. ([Source Code](https://github.com/judge0/judge0)) `GPL-3.0``Ruby`
- [JupyterLab](https://jupyterlab.github.io/jupyterlab/) - Web-based environment for interactive and reproducible computing. ([Demo](https://mybinder.org/v2/gh/jupyterlab/jupyterlab-demo/try.jupyter.org?urlpath=lab), [Source Code](https://github.com/jupyterlab/jupyterlab/)) `BSD-3-Clause``Python/Docker`
- [Lowdefy](https://www.lowdefy.com/) - Build internal tools, BI dashboards, admin panels, CRUD apps and workflows in minutes using YAML / JSON on an self-hosted, open-source platform. Connect to your data sources, host via Serverless, Netlify or Docker. ([Source Code](https://github.com/lowdefy/lowdefy)) `Apache-2.0``Nodejs`
- [ML Workspace](https://github.com/ml-tooling/ml-workspace) - All-in-one web-based IDE for machine learning and data science. `Apache-2.0``Docker`
- [Regexr](https://regexr.com/) - RegExr is a HTML/JS based tool for creating, testing, and learning about Regular Expressions. ([Source Code](https://github.com/gskinner/regexr)) `MIT``Nodejs`
- [RStudio Server](https://www.rstudio.com/products/rstudio/#Server) - Web browser based IDE for R. ([Source Code](https://github.com/rstudio/rstudio)) `AGPL-3.0``Java/C++`
- [Slingcode](https://slingcode.net/) - Web app IDE and computing platform in a single static HTML file. ([Demo](https://slingcode.net/slingcode.html), [Source Code](https://github.com/chr15m/slingcode/)) `MIT``HTML`
- [sourcegraph](https://sourcegraph.com) - Sourcegraph is a fast, open-source, fully-featured code search and navigation engine written in Go. ([Source Code](https://github.com/sourcegraph/sourcegraph)) `Apache-2.0``Go`
- [Wakapi](https://wakapi.dev/) - Tracking tool for coding statistics, compatible with WakaTime. ([Source Code](https://github.com/muety/wakapi)) `GPL-3.0``Go`
### Software Development - Continuous Integration & Deployment
- [Uier](https://github.com/sjoerdvanderhoorn/Uier) - Codeless or low-code User Experience test editing and management using Selenium to perform testing or UI automation. Uier tends to be a free self hostable alternative to Applitools, Endtest, Ghost Inspector, Usetrace, Screenster and many others. `Apache-2.0``Nodejs`
- [Appwrite](https://appwrite.io) - End to end backend server for web, native, and mobile developers 🚀. ([Source Code](https://github.com/appwrite/appwrite)) `BSD-3-Clause``PHP`
- [fx](https://github.com/metrue/fx) - fx is a tool to help you do Function as a Service with painless on your own servers. `MIT``Go`
- [IronFunctions](https://github.com/iron-io/functions) - The serverless microservices platform by [iron.io](https://www.iron.io/). `Apache-2.0``Go`
- [LocalStack](https://localstack.cloud/) - LocalStack is a fully functional local AWS cloud stack. This includes Lambda for serverless computation. ([Source Code](https://github.com/localstack/localstack)) `Apache-2.0``Python/Other`
- [OpenFaaS](https://www.openfaas.com/) - Serverless Functions Made Simple for Docker & Kubernetes. ([Source Code](https://github.com/openfaas/faas)) `MIT``Go`
- [DreamFactory](https://www.dreamfactory.com/) - Turns any SQL/NoSQL/Structured data into Restful API. ([Source Code](https://github.com/dreamfactorysoftware/dreamfactory)) `Apache-2.0``PHP`
- [form.io](https://form.io) - A REST API building platform that utilizes a drag & drop form builder, and is application framework agnostic. Contains open source and enterprise version. ([Demo](https://portal.form.io), [Source Code](https://github.com/formio)) `MIT``Nodejs`
- [Fusio](https://www.fusio-project.org/) - Open-source API management platform which helps to build and manage REST APIs. ([Demo](https://fusio-project.org/demo), [Source Code](https://github.com/apioo/fusio)) `AGPL-3.0``PHP`
- [Hapttic](https://github.com/jsoendermann/hapttic) - Simple HTTP server that forwards all requests to a shell script to handle webhooks you receive. `Apache-2.0``Go`
- [Hasura](https://hasura.io) - Fast, instant realtime GraphQL APIs on Postgres with fine grained access control, also trigger webhooks on database events. ([Source Code](https://github.com/hasura/graphql-engine)) `Apache-2.0``Haskell`
- [Hoppscotch](https://hoppscotch.io) - A free, fast and beautiful API request builder. ([Source Code](https://github.com/hoppscotch/hoppscotch)) `MIT``Nodejs/Vue/Nuxt`
- [Kong](https://konghq.com/kong/) - The World’s Most Popular Open Source Microservice API Gateway and Platform. ([Source Code](https://github.com/Kong/kong)) `Apache-2.0``Lua`
- [Lura](https://luraproject.org/) - Open source High-Performance API Gateway. ([Source Code](https://github.com/luraproject/lura)) `Apache-2.0``Go`
- [Para](https://paraio.org) - Flexible and modular backend framework/server for object persistence, API development and authentication. ([Source Code](https://github.com/erudika/para)) `Apache-2.0``Java`
- [Pizzly](https://github.com/bearer/pizzly) - Open-source API Integrations Manager that provides everything a developer needs to interact with OAuth based APIs. `MIT``Nodejs`
- [Tyk](https://tyk.io) - Fast and scalable open source API Gateway. Out of the box, Tyk offers an API Management Platform with an API Gateway, API Analytics, Developer Portal and API Management Dashboard. ([Source Code](https://github.com/TykTechnologies/tyk)) `MPL-2.0``Go`
### Software Development - Documentation Generators
_Related: [Static site generators](#static-site-generators)_
- [Docstore](https://git.haldean.org/docstore/) - Static document hosting without any server-side processing, does not require you to recompile every time you change an article. Clone the repository and add articles in the text/ directory to get started. ([Source Code](https://github.com/haldean/docstore)) `BSD-3-Clause``Javascript`
- [Flatdoc](https://ricostacruz.com/flatdoc/) - Small Javascript file that fetches Markdown files and renders them as full pages. `MIT``Javascript`
- [markdown-tree](https://github.com/mil/markdown-tree) - Serve a hierarchy / tree directory of markdown files. Use intended for small sites built in markdown. `MIT``Ruby`
- [Read the Docs](https://readthedocs.org/) - Host documentation, making it fully searchable and easy to find; import your docs using any major version control system, including Mercurial, Git, Subversion, and Bazaar. ([Demo](https://readthedocs.org/projects/), [Source Code](https://github.com/readthedocs/readthedocs.org)) `MIT``Python`
- [Localizer](https://localizer.dev) - Free self-hosted open-source crowd-translating service for your product. ([Demo](https://localize.todorant.com), [Source Code](https://github.com/backmeupplz/localizer-backend)) `MIT``Nodejs/Docker`
- [Weblate](https://weblate.org) - Web-based translation tool with tight version control integration. ([Demo](https://demo.weblate.org), [Source Code](https://github.com/WeblateOrg/weblate)) `GPL-3.0``Python`
- [Zanata](http://zanata.org) - Web-based translation platform for translators, content creators and developers to manage localisation projects. ([Source Code](https://github.com/zanata/zanata-platform)) `GPL-2.0``Java`