head to head · open source
gitdiagram vs synthadoc
gitdiagram has 17,625 GitHub stars, 1,348 forks, 43 open issues and last shipped today. synthadoc has 1,500 stars, 146 forks, 6 open issues and last shipped yesterday. gitdiagram leads on adoption by 1,075% (17,625 vs 1,500 stars). gitdiagram is written in TypeScript under MIT; synthadoc is written in Python under AGPL-3.0. gitdiagram has attracted 8% as many forks as stars, synthadoc 10%. gitdiagram 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
| gitdiagram | synthadoc | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 1.5K |
| License | MIT | AGPL-3.0 |
| Written in | TypeScript | Python |
| Last push | 2026-10-01 | 2026-09-30 |
| Forks | ⑂ 1.3K | ⑂ 146 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick gitdiagram if
- You weight community size — 18K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick synthadoc if
- You want the synthadoc feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and synthadoc fits your workflow better
About gitdiagram
GitDiagram is an open source, MIT licensed TypeScript tool that turns any public or private GitHub repository into an interactive architecture diagram — and now into a one minute narrated explainer video — for developers, reviewers and AI agents who need to understand a codebase quickly.
read the full gitdiagram overview →
About synthadoc
Synthadoc is an open source, LLM powered knowledge compilation engine for individuals, small teams, and enterprises who want a structured, local first wiki built from their raw documents rather than a retrieval system that answers queries on the fly.
read the full synthadoc overview →
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Frequently asked questions
Is gitdiagram or synthadoc more popular?
gitdiagram has 17,625 GitHub stars and synthadoc has 1,500. gitdiagram has the larger community by that measure.
Are gitdiagram and synthadoc free?
Both are open source. gitdiagram is licensed under MIT and synthadoc under AGPL-3.0. Neither carries a licence fee.
What is the difference between gitdiagram and synthadoc?
gitdiagram is written in TypeScript and synthadoc in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, gitdiagram or synthadoc?
Choose gitdiagram if you want the larger community (17,625 stars) or its MIT licence terms. Choose synthadoc if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.