head to head · open source
diagram-design vs unovis
diagram-design has 64,318 GitHub stars, 4,247 forks, 42 open issues and last shipped 2 days ago. unovis has 2,861 stars, 75 forks, 100 open issues and last shipped 5 days ago. diagram-design leads on adoption by 2,148% (64,318 vs 2,861 stars). diagram-design is written in HTML under MIT; unovis is written in TypeScript under Apache-2.0. diagram-design has attracted 7% as many forks as stars, unovis 3%. diagram-design 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
| diagram-design | unovis | |
|---|---|---|
| GitHub stars | ★ 64K | ★ 2.9K |
| License | MIT | Apache-2.0 |
| Written in | HTML | TypeScript |
| Last push | 2026-11-01 | 2026-10-29 |
| Forks | ⑂ 4.2K | ⑂ 75 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick diagram-design if
- You weight community size — 64K stars and counting
- You want the MIT license terms
- Your stack matches HTML
- You value the larger contributor base for long-term maintenance
pick unovis if
- You want the unovis feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and unovis fits your workflow better
About diagram-design
Diagram Design Editorial diagrams your designer won't hate. New in 2.0 — the Loop: flywheels with a shared memory hub. The dashed lines are the write backs. New in 2.3: semantic system patterns and optional accessible motion, while static output stays the default. New in 2.5.10: ten more layout grammars — Sankey, fishbone, Wardley map, kanban, user journey, deployment, dependency graph, UML class, story map, and database schema. 39 editorial diagram types for Claude Code, Codex, Factory Droid, Pi, and Agent Skills compatible hosts. Self contained HTML + SVG. No shadows. No Mermaid slop. Semantic patterns…
read the full diagram-design overview →
About unovis
🟨 Unovis is a modular data visualization framework for React, Angular, Svelte, Vue, Solid and vanilla TypeScript or JavaScript: 📈 🗺 It has charts, maps, network graphs, and more! 🌳 Tree shakable and supports individual component imports to reduce your bundle size; 🎨 Highly customizable, thanks to the CSS variables support. Learn more about Unovis on unovis.dev Quick Start You can install the core of the library @unovis/ts and framework specific packages (if you use React, Angular, Svelte, Vue or Solid) from NPM: Now you can import components and create your first chart! Here's how to build a simple line…
read the full unovis overview →
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Frequently asked questions
Is diagram-design or unovis more popular?
diagram-design has 64,318 GitHub stars and unovis has 2,861. diagram-design has the larger community by that measure.
Are diagram-design and unovis free?
Both are open source. diagram-design is licensed under MIT and unovis under Apache-2.0. Neither carries a licence fee.
What is the difference between diagram-design and unovis?
diagram-design is written in HTML and unovis 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, diagram-design or unovis?
Choose diagram-design if you want the larger community (64,318 stars) or its MIT licence terms. Choose unovis if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.