Judge0 CE

code-server

VS Code in the browser

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) MIT Docker

LiveCodes

⚠ - Feature-rich client-side code playground for React, Vue, Svelte, Solid, Typescript, Python, Go, Ruby, PHP and 90+ other languages. (Demo, Source Code) MIT Nodejs

RStudio Server

Web browser based IDE for R. (Source Code) AGPL-3.0 Java/C++