head to head · open source
dataease vs sigma.js
dataease has 24,442 GitHub stars, 4,236 forks, 49 open issues and last shipped yesterday. sigma.js has 12,167 stars, 1,620 forks, 12 open issues and last shipped 2 days ago. dataease leads on adoption by 101% (24,442 vs 12,167 stars). dataease is written in Java under GPL-3.0; sigma.js is written in TypeScript under MIT. dataease has attracted 17% as many forks as stars, sigma.js 13%. dataease 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
| dataease | sigma.js | |
|---|---|---|
| GitHub stars | ★ 24K | ★ 12K |
| License | GPL-3.0 | MIT |
| Written in | Java | TypeScript |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 4.2K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick dataease if
- You weight community size — 24K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Java
- 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 dataease
DataEase is an open source business intelligence and data visualization tool, written in Java and licensed under GPL 3.0, built for analysts and business teams who want to explore data and build charts by clicking and dragging rather than by writing code.
read the full dataease 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 dataease or sigma.js more popular?
dataease has 24,442 GitHub stars and sigma.js has 12,167. dataease has the larger community by that measure.
Are dataease and sigma.js free?
Both are open source. dataease is licensed under GPL-3.0 and sigma.js under MIT. Neither carries a licence fee.
What is the difference between dataease and sigma.js?
dataease is written in Java 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, dataease or sigma.js?
Choose dataease if you want the larger community (24,442 stars) or its GPL-3.0 licence terms. Choose sigma.js if its feature set, stack or MIT licence fits better. Both are self-hostable.