head to head · open source
gitdiagram vs synthadoc
gitdiagram has 18,931 GitHub stars, 1,445 forks, 43 open issues and last shipped 4 days ago. synthadoc has 2,030 stars, 189 forks, 4 open issues and last shipped today. gitdiagram leads on adoption by 833% (18,931 vs 2,030 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 9%. synthadoc 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 | ★ 19K | ★ 2.0K |
| License | MIT | AGPL-3.0 |
| Written in | TypeScript | Python |
| Last push | 2026-11-11 | 2026-11-15 |
| Forks | ⑂ 1.4K | ⑂ 189 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick gitdiagram if
- You weight community size — 19K 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 Visualize any codebase: turn any public or private GitHub repository into an interactive architecture diagram, or watch it explained in a one minute narrated video. AI agents can use it too, through the MCP server or the Markdown version of any diagram ( gitdiagram.com/owner/repo.md ). Try GitDiagram → · Or replace hub with diagram in any GitHub repository URL. Sponsored SMS, WhatsApp, and RCS through one API. Try Sent → New: explainer videos GitDiagram can now turn a repository into a narrated video of about a minute. The video starts with what the project is for and what people do with it, then…
read the full gitdiagram overview →
About synthadoc
Synthadoc Document version: v1.5.2 Engineered for solo users and enterprises alike, providing a domain specific knowledge base that scales seamlessly while maintaining accuracy through autonomous self optimization. Built for individuals, small teams, and large organizations who need a knowledge base that stays accurate as documents accumulate. Documentation, FAQ and articles: Synthadoc reads your raw source documents — PDFs, spreadsheets, PPTs, web pages, images, videos, Word files, TXTs, and AI session transcripts (.jsonl) — and uses an LLM to synthesize them into a persistent, structured wiki. Cross references…
read the full synthadoc overview →
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Frequently asked questions
Is gitdiagram or synthadoc more popular?
gitdiagram has 18,931 GitHub stars and synthadoc has 2,030. 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 (18,931 stars) or its MIT licence terms. Choose synthadoc if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.