EtherCalc
Real-time collaborative spreadsheet editor
EtherCalc is an open-source web spreadsheet that allows real-time collaboration. Multiple users can edit the same spreadsheet simultaneously from their browsers.
Key features
- Real-time spreadsheet editing
- No login required
- REST API for cells
- Lightweight deployment
Strengths
- Released under the CPAL-1.0 license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Active community (3k GitHub stars)
EtherCalc replaces
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