massCode
massCode is a free, open-source notes and writing app for Windows, macOS and Linux. A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app. It has 7,048 GitHub stars and is released under the AGPL-3.0 license.
- Official
- Linux
- macOS
- Windows
- Notes & writing
- Actively maintained
About massCode
A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, drawings, and dev tools in one local-first app.
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What is massCode?
massCode is a free, open-source notes and writing app for Windows, macOS and Linux. A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app. It has 7,048 GitHub stars and is released under the AGPL-3.0 license.
Is massCode free and open source?
Yes. massCode's source code is public on GitHub under the AGPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install massCode?
Download the installer for Windows, macOS and Linux from its GitHub Releases page (latest: v6.1.0) or the project website.
Is massCode still maintained?
The repository's most recent commit was on Oct 8, 2026. appsgit only lists apps whose repository had a commit in the last six months.