head to head · open source
diagram-design vs sentinl
diagram-design has 64,318 GitHub stars, 4,247 forks, 42 open issues and last shipped 2 days ago. sentinl has 1,319 stars, 290 forks, 22 open issues and last shipped 10 months ago. diagram-design leads on adoption by 4,776% (64,318 vs 1,319 stars). diagram-design is written in HTML under MIT; sentinl is written in JavaScript under Apache-2.0. diagram-design has attracted 7% as many forks as stars, sentinl 22%. diagram-design was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | sentinl | |
|---|---|---|
| GitHub stars | ★ 64K | ★ 1.3K |
| License | MIT | Apache-2.0 |
| Written in | HTML | JavaScript |
| Last push | 2026-11-01 | 2026-01-21 |
| Forks | ⑂ 4.2K | ⑂ 290 |
| 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 sentinl if
- You want the sentinl 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 sentinl 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 sentinl
SENTINL is looking for a Community! Interested in helping continue/maintain/extend/document/test the SENTINL open source project? Contact us or open an Issue, we'd love to have you onboard! Siren Investigate & Kibana Alerting & Reporting App Watching your data, 24/7/365. SENTINL extends Siren Investigate and Kibana with Alerting and Reporting functionality to monitor, notify and report on data series changes using standard queries, programmable validators and a variety of configurable actions Think of it as a free an independent "Watcher" which also has scheduled "Reporting" capabilities (PNG/PDFs snapshots)…
read the full sentinl overview →
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Frequently asked questions
Is diagram-design or sentinl more popular?
diagram-design has 64,318 GitHub stars and sentinl has 1,319. diagram-design has the larger community by that measure.
Are diagram-design and sentinl free?
Both are open source. diagram-design is licensed under MIT and sentinl under Apache-2.0. Neither carries a licence fee.
What is the difference between diagram-design and sentinl?
diagram-design is written in HTML and sentinl 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 sentinl?
Choose diagram-design if you want the larger community (64,318 stars) or its MIT licence terms. Choose sentinl if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.