head to head · open source
onedev vs Jantt
onedev has 15,339 GitHub stars, 991 forks, 0 open issues and last shipped 2 days ago. Jantt has 6,211 stars, 17 forks, 12 open issues and last shipped 2 days ago. onedev leads on adoption by 147% (15,339 vs 6,211 stars). onedev is written in Java under MIT; Jantt is written in TypeScript under MIT. onedev has attracted 6% as many forks as stars, Jantt 0%. onedev was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (kanban), 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
| onedev | Jantt | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 6.2K |
| License | MIT | MIT |
| Written in | Java | TypeScript |
| Last push | 2026-11-03 | 2026-11-03 |
| Forks | ⑂ 991 | ⑂ 17 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick onedev if
- You weight community size — 15K stars and counting
- You want the MIT license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick Jantt if
- You want the Jantt feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Jantt fits your workflow better
About onedev
NOTE: We develop OneDev at code.onedev.io for sake of dogfooding. Please submit issues and pull requests there The Unified and Autonomous Development Platform Get Started AI Teammates 🔎 Out of box code search and navigation Language aware symbol search and navigation in any commit. Click symbol to show occurrences in current file. Fast code search with regular expression. Try It 📦 Renovate integration to update project dependencies Integrate with Renovate to update project dependencies via pull requests. Merge pull requests automatically when approved by required reviewers, or pass required tests. Tutorial 🚦…
read the full onedev overview →
About Jantt
The Declarative JSON Gantt Chart Engine Where human intuition meets declarative AI planning. Turn any declarative JSON document into a high performance, interactive, draggable Gantt chart. Zero runtime dependencies. 100% pure TypeScript. Runs everywhere: Plain HTML, React, Next.js, Node.js CLI, and autonomous AI toolchains. Designed from the ground up for: Autonomous AI Agents & LLMs — Declarative JSON schema contract eliminates UI hallucinations; models generate timeline data with 10x fewer tokens than fragile JSX code. Students, Hobbyists & Creators — Lightweight, beautiful Swiss Noir dark mode, intuitive drag…
read the full Jantt overview →
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Frequently asked questions
Is onedev or Jantt more popular?
onedev has 15,339 GitHub stars and Jantt has 6,211. onedev has the larger community by that measure.
Are onedev and Jantt free?
Both are open source. onedev is licensed under MIT and Jantt under MIT. Neither carries a licence fee.
What is the difference between onedev and Jantt?
onedev is written in Java and Jantt 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, onedev or Jantt?
Choose onedev if you want the larger community (15,339 stars) or its MIT licence terms. Choose Jantt if its feature set, stack or MIT licence fits better. Both are self-hostable.