Office suites · Updated October 2026
Excel is Microsoft's spreadsheet app for formulas, tables, and charts. If you would rather own your tools, here are 6 open source alternatives to Excel, ranked by GitHub stars. Each one is free to use under its license, and you can read, change, and often self-host the code.
The most popular is NocoDB with 65.3k stars, and the most recently updated is LibreOffice, with a commit on Oct 21, 2026.
| Project | Stars | License | Language | Last commit |
|---|---|---|---|---|
 NocoDB | 65.3k | Other | TypeScript | Oct 21, 2026 |
 Teable | 21.9k | Other | TypeScript | Oct 21, 2026 |
 APITable | 15.6k | AGPL-3.0 | TypeScript | Sep 6, 2026 |
 Grist | 12k | Apache-2.0 | TypeScript | Oct 21, 2026 |
 ONLYOFFICE | 5.6k | AGPL-3.0 | — | Oct 21, 2026 |
 LibreOffice | 4.5k | GPL-3.0 | C++ | Oct 21, 2026 |
by nocodb
🔥 🔥 🔥 A Free & Self-hostable Airtable Alternative
by teableio
✨ AI Spreadsheet for Business
by apitable
🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives.
by gristlabs
Grist is the evolution of spreadsheets.
by ONLYOFFICE
Open-source office suite pack that comprises all the tools you need to work with documents, spreadsheets, presentations, PDFs, and PDF forms on Windows, Linux, and macOS
by LibreOffice
Read-only LibreOffice core repo - no pull request (use gerrit instead https://gerrit.libreoffice.org/) - don't download zip, use https://dev-www.libreoffice.org/bundles/ instead
By GitHub stars, NocoDB is the most popular open source alternative to Excel right now, with 65.3k stars, followed by Teable and APITable. The best fit depends on your setup, so compare their licenses, languages, and recent activity in the table above.
Yes. All 6 projects on this page are open source, so the software itself is free to use, study, and change. Some of them also sell a hosted version or paid support.
LibreOffice (last commit Oct 21, 2026), ONLYOFFICE (last commit Oct 21, 2026), and Teable (last commit Oct 21, 2026) have the most recent commits. Licenses on this list include AGPL-3.0, Apache-2.0, and GPL-3.0.
