head to head · open source
diagram-design vs kepler.gl
diagram-design has 41,375 GitHub stars, 2,652 forks, 42 open issues and last shipped yesterday. kepler.gl has 12,017 stars, 1,959 forks, 452 open issues and last shipped today. diagram-design leads on adoption by 244% (41,375 vs 12,017 stars). diagram-design is written in HTML under MIT; kepler.gl is written in TypeScript under MIT. diagram-design has attracted 6% as many forks as stars, kepler.gl 16%. kepler.gl 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 | kepler.gl | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 12K |
| License | MIT | MIT |
| Written in | HTML | TypeScript |
| Last push | 2026-09-19 | 2026-09-20 |
| Forks | ⑂ 2.7K | ⑂ 2.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick diagram-design if
- You weight community size — 41K stars and counting
- You want the MIT license terms
- Your stack matches HTML
- You value the larger contributor base for long-term maintenance
pick kepler.gl if
- You want the kepler.gl feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and kepler.gl fits your workflow better
About diagram-design
Diagram Design is a skill for Claude Code, Codex, Factory Droid, Pi, and other Agent Skills compatible hosts that generates editorial quality diagrams as self contained HTML and SVG, aimed at writers, engineers, and designers who need brand consistent visuals without opening Figma.
read the full diagram-design overview →
About kepler.gl
Kepler.gl is an MIT licensed, TypeScript geospatial analysis tool that renders large scale geolocation data sets in the browser at million point scale, built for data analysts, GIS practitioners, and React developers who need to explore trip and point data without assembling their own rendering stack.
read the full kepler.gl overview →
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Frequently asked questions
Is diagram-design or kepler.gl more popular?
diagram-design has 41,375 GitHub stars and kepler.gl has 12,017. diagram-design has the larger community by that measure.
Are diagram-design and kepler.gl free?
Both are open source. diagram-design is licensed under MIT and kepler.gl under MIT. Neither carries a licence fee.
What is the difference between diagram-design and kepler.gl?
diagram-design is written in HTML and kepler.gl 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 kepler.gl?
Choose diagram-design if you want the larger community (41,375 stars) or its MIT licence terms. Choose kepler.gl if its feature set, stack or MIT licence fits better. Both are self-hostable.