SHSelfHostIndex
ET

EtherCalc

Real-time collaborative spreadsheet editor

Office Suites ★ 3.1k stars Easy setup CPAL-1.0

EtherCalc is an open-source web spreadsheet that allows real-time collaboration. Multiple users can edit the same spreadsheet simultaneously from their browsers.

Official siteSource code

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 (3.1k GitHub stars)

Is EtherCalc secure?

OSV.dev has no published security advisories for EtherCalc's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

EtherCalc replaces

Self-hosted Google Sheets alternatives

Health badge

Maintain EtherCalc? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 87 · excellent

Markdown
[![SelfHostIndex health score for EtherCalc](https://selfhostindex.com/badge/ethercalc.svg)](https://selfhostindex.com/app/ethercalc/)
HTML
<a href="https://selfhostindex.com/app/ethercalc/"><img src="https://selfhostindex.com/badge/ethercalc.svg" alt="SelfHostIndex health score for EtherCalc"></a>
reStructuredText
.. image:: https://selfhostindex.com/badge/ethercalc.svg
   :alt: SelfHostIndex health score for EtherCalc
   :target: https://selfhostindex.com/app/ethercalc/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

Compare EtherCalc

4 head-to-head comparisons.

Similar office suites apps