- [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](http://jsbin.com/) - Open source collaborative web development debugging tool. ([Source Code](https://github.com/jsbin/jsbin)) `MIT``Nodejs`
- [Judge0 API](https://api.judge0.com) - Open source API to compile and run source code. ([Source Code](https://github.com/judge0/api)) `GPL-3.0``Ruby`
- [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](http://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`