head to head · open source
Leantime vs Jantt
Leantime has 11,958 GitHub stars, 1,169 forks, 328 open issues and last shipped 4 days ago. Jantt has 6,211 stars, 17 forks, 12 open issues and last shipped 2 days ago. Leantime leads on adoption by 93% (11,958 vs 6,211 stars). Leantime is written in PHP under AGPL-3.0; Jantt is written in TypeScript under MIT. Leantime has attracted 10% as many forks as stars, Jantt 0%. Jantt was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (gantt, 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
| Leantime | Jantt | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 6.2K |
| License | AGPL-3.0 | MIT |
| Written in | PHP | TypeScript |
| Last push | 2026-11-01 | 2026-11-03 |
| Forks | ⑂ 1.2K | ⑂ 17 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Leantime if
- You weight community size — 12K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches PHP
- 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 Leantime
Leantime® ⭐ If you find Leantime useful, please star us on GitHub! ⭐ Leantime is an open source project management system for non project managers. We combine strategy, planning and execution while making it easy for everyone on the team to use. Built with ADHD, dyslexia and autism in mind. 🧠 💪 As simple as Trello but as feature rich as Jira 🔄 A perfect alternative to ClickUp, Monday, or Asana 🌐 🚀 Features yes, all of these features are included in the OSS version 📸 Screenshots ❗System Requirements PHP 8.2+ MySQL 8.0+ or MariaDB 10.6+ Apache or Nginx (IIS works with some modifications) PHP Extensions…
read the full Leantime 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 Leantime or Jantt more popular?
Leantime has 11,958 GitHub stars and Jantt has 6,211. Leantime has the larger community by that measure.
Are Leantime and Jantt free?
Both are open source. Leantime is licensed under AGPL-3.0 and Jantt under MIT. Neither carries a licence fee.
What is the difference between Leantime and Jantt?
Leantime is written in PHP 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, Leantime or Jantt?
Choose Leantime if you want the larger community (11,958 stars) or its AGPL-3.0 licence terms. Choose Jantt if its feature set, stack or MIT licence fits better. Both are self-hostable.