Open-source alternatives to popular software

OSS Alternatives covers a small number of proprietary tools in depth rather than a large, shallow directory. Each page below ranks genuinely open-source alternatives by GitHub activity and spells out license, self-hosting, and pricing so you can pick one with confidence.

Spreadsheet Tools alternatives

A

AppSheet

No-code app builder from Google

4 alternatives

G

Glide

No-code app builder from spreadsheets and databases

9 alternatives

Google Sheets

Browser-based spreadsheets with real-time collaboration

9 alternatives

Microsoft Excel

Spreadsheet application for calculations, analysis, and reporting

6 alternatives