head to head · open source
dash vs sigma.js
dash has 24,411 GitHub stars, 2,314 forks, 480 open issues and last shipped yesterday. sigma.js has 12,167 stars, 1,620 forks, 12 open issues and last shipped 2 days ago. dash leads on adoption by 101% (24,411 vs 12,167 stars). dash is written in Python under MIT; sigma.js is written in TypeScript under MIT. dash has attracted 9% as many forks as stars, sigma.js 13%. dash was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (data-visualization), 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
| dash | sigma.js | |
|---|---|---|
| GitHub stars | ★ 24K | ★ 12K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 2.3K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick dash if
- You weight community size — 24K stars and counting
- You want the MIT 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 dash
Dash is an open source Python framework for building analytical web applications, data apps, and dashboards without writing JavaScript, aimed at data scientists, analysts, and machine learning engineers who want to turn Python code into interactive browser interfaces.
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 dash or sigma.js more popular?
dash has 24,411 GitHub stars and sigma.js has 12,167. dash has the larger community by that measure.
Are dash and sigma.js free?
Both are open source. dash is licensed under MIT and sigma.js under MIT. Neither carries a licence fee.
What is the difference between dash and sigma.js?
dash 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, dash or sigma.js?
Choose dash if you want the larger community (24,411 stars) or its MIT licence terms. Choose sigma.js if its feature set, stack or MIT licence fits better. Both are self-hostable.