Atheos - Web-based IDE framework with a small footprint and minimal requirements, continued from Codiad. (Source Code) MITPHP/Docker
code-server - VS Code in the browser, hosted on a remote server. MITNodejs/Docker
Coder - Remote development machines on your own infrastructure. (Source Code) AGPL-3.0Go/Docker/K8S/deb
Eclipse Che - Open source workspace server and cloud IDE. (Source Code) EPL-1.0Docker/Java
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. MITC#
JupyterLab - Web-based environment for interactive and reproducible computing. (Demo, Source Code) BSD-3-ClausePython/Docker
Langfuse - LLM engineering platform for model tracing, prompt management, and application evaluation. Langfuse helps teams collaboratively debug, analyze, and iterate on their LLM applications such as chatbots or AI agents. (Demo, Source Code, Clients) MITDocker
LiveCodes⚠ - Feature-rich client-side code playground for React, Vue, Svelte, Solid, Typescript, Python, Go, Ruby, PHP and 90+ other languages. (Demo, Source Code) MITNodejs
Lowdefy - 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) Apache-2.0Nodejs/Docker