head to head · open source
diagram-design vs vizzu-lib
diagram-design has 64,318 GitHub stars, 4,247 forks, 42 open issues and last shipped 2 days ago. vizzu-lib has 2,047 stars, 87 forks, 3 open issues and last shipped 7 months ago. diagram-design leads on adoption by 3,042% (64,318 vs 2,047 stars). diagram-design is written in HTML under MIT; vizzu-lib is written in JavaScript under Apache-2.0. diagram-design has attracted 7% as many forks as stars, vizzu-lib 4%. 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 | vizzu-lib | |
|---|---|---|
| GitHub stars | ★ 64K | ★ 2.0K |
| License | MIT | Apache-2.0 |
| Written in | HTML | JavaScript |
| Last push | 2026-11-01 | 2026-04-20 |
| Forks | ⑂ 4.2K | ⑂ 87 |
| 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 vizzu-lib if
- You want the vizzu-lib feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and vizzu-lib 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 vizzu-lib
Vizzu Library for animated data visualizations and data stories. Documentation · Examples · Code reference · Repository · Blog Vizzu About The Project Vizzu is a free, open source Javascript/C++ library utilizing a generic dataviz engine that generates many types of charts and seamlessly animates between them. It can be used to create static charts but more importantly, it is designed for building animated data stories and interactive explorers as Vizzu enables showing different perspectives of the data that the viewers can easily follow due to the animation. Main features: Designed with animation in focus…
read the full vizzu-lib overview →
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Frequently asked questions
Is diagram-design or vizzu-lib more popular?
diagram-design has 64,318 GitHub stars and vizzu-lib has 2,047. diagram-design has the larger community by that measure.
Are diagram-design and vizzu-lib free?
Both are open source. diagram-design is licensed under MIT and vizzu-lib under Apache-2.0. Neither carries a licence fee.
What is the difference between diagram-design and vizzu-lib?
diagram-design is written in HTML and vizzu-lib in JavaScript. 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 vizzu-lib?
Choose diagram-design if you want the larger community (64,318 stars) or its MIT licence terms. Choose vizzu-lib if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.