head to head · open source
Redash vs sigma.js
Redash has 28,800 GitHub stars, 4,624 forks, 805 open issues and last shipped 15 days ago. sigma.js has 12,167 stars, 1,620 forks, 12 open issues and last shipped 2 days ago. Redash leads on adoption by 137% (28,800 vs 12,167 stars). Redash is written in Python under BSD-2-Clause; sigma.js is written in TypeScript under MIT. Redash has attracted 16% as many forks as stars, sigma.js 13%. sigma.js was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (javascript), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Redash | sigma.js | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 12K |
| License | BSD-2-Clause | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-03 | 2026-09-16 |
| Forks | ⑂ 4.6K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Redash if
- You weight community size — 29K stars and counting
- You want the BSD-2-Clause license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick sigma.js if
- You want the sigma.js feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and sigma.js fits your workflow better
About Redash
Redash is an open source business intelligence and data analytics platform built with Python and JavaScript. It enables users to connect to diverse data sources, write and execute SQL/NoSQL queries, build visualizations, and share interactive dashboards—all through a browser based interface.
read the full Redash overview →
About sigma.js
Sigma.js is an open source JavaScript and TypeScript library for rendering graphs of thousands of nodes and edges in the browser using WebGL, released under the MIT licence and built on top of graphology.
read the full sigma.js overview →
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Frequently asked questions
Is Redash or sigma.js more popular?
Redash has 28,800 GitHub stars and sigma.js has 12,167. Redash has the larger community by that measure.
Are Redash and sigma.js free?
Both are open source. Redash is licensed under BSD-2-Clause and sigma.js under MIT. Neither carries a licence fee.
What is the difference between Redash and sigma.js?
Redash is written in Python and sigma.js in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Redash or sigma.js?
Choose Redash if you want the larger community (28,800 stars) or its BSD-2-Clause licence terms. Choose sigma.js if its feature set, stack or MIT licence fits better. Both are self-hostable.