Software

The most comprehensive and integrated Free / Libre / Open Source enterprise software suite. ([Source Code](https://wikisuite.org/Source-Code))

Install and manage self-hosted services/applications, on your own server(s). ([Source Code](https://github.com/nodiscc/xsrv))

Server operating system aiming to make self-hosting accessible to everyone. ([Demo](https://yunohost.org/#/try), [Source Code](https://github.com/YunoHost))

Turns any SQL/NoSQL/Structured data into Restful API. ([Source Code](https://github.com/dreamfactorysoftware/dreamfactory))

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))

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))

Turn multiple data sources into a single GraphQL API. ([Source Code](https://github.com/exogee-technology/graphweaver))

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))

Fast and beautiful API request builder. ([Source Code](https://github.com/hoppscotch/hoppscotch))

Microservice API Gateway and Platform. ([Source Code](https://github.com/Kong/kong))

High-performance API Gateway. ([Source Code](https://github.com/luraproject/lura))

Flexible and modular backend framework/server for object persistence, API development and authentication. ([Source Code](https://github.com/erudika/para))

Open-source webhooks as a service that makes it super easy for API providers to send webhooks. ([Source Code](https://github.com/svix/svix-webhooks))

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))

Yaade is an open-source, self-hosted, collaborative API development environment. ([Source Code](https://github.com/EsperoTech/yaade))

Enterprise-grade feature flag platform that you can self-host. ([Source Code](https://github.com/featbit/featbit))

Dashboard, API and SDKs for adding Feature Flags to your applications (alternative to LaunchDarkly). ([Source Code](https://github.com/flagsmith/flagsmith))

Feature flag solution with support for multiple data backends (alternative to LaunchDarkly). ([Source Code](https://github.com/flipt-io/flipt))

Simple, complete, and lightweight feature flag solution (alternative to LaunchDarkly). ([Source Code](https://github.com/thomaspoignant/go-feature-flag))

Web-based IDE framework with a small footprint and minimal requirements, continued from Codiad. ([Source Code](https://github.com/Atheos/Atheos))

Remote development machines on your own infrastructure. ([Source Code](https://github.com/coder/coder))

Open source workspace server and cloud IDE. ([Source Code](https://github.com/eclipse-che/che))

API to compile and run source code. ([Source Code](https://github.com/judge0/judge0))

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/))