head to head · open source
herdr vs synthadoc
herdr has 47,557 GitHub stars, 3,813 forks, 337 open issues and last shipped yesterday. synthadoc has 1,760 stars, 172 forks, 4 open issues and last shipped yesterday. herdr leads on adoption by 2,602% (47,557 vs 1,760 stars). herdr is written in Rust under Apache-2.0; synthadoc is written in Python under AGPL-3.0. herdr has attracted 8% as many forks as stars, synthadoc 10%. 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
| herdr | synthadoc | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 1.8K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Rust | Python |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.8K | ⑂ 172 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick herdr if
- You weight community size — 48K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- 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 herdr
herdr herdr.dev · install · quick start · docs English · 简体中文 the runtime your coding agents live on. detach without stopping work — herdr keeps terminals running in a background server when you close the client or lose your SSH connection. after a server or machine restart, herdr restores the saved layout and can resume supported agent sessions; the original processes do not survive. session state → several machines, one window — keep local work and saved ssh machines together, with a combined agent list and independent reconnects. remote machines → never hunt for the stuck one — every pane is marked working…
read the full herdr overview →
About synthadoc
Synthadoc Document version: v1.5.0 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 herdr or synthadoc more popular?
herdr has 47,557 GitHub stars and synthadoc has 1,760. herdr has the larger community by that measure.
Are herdr and synthadoc free?
Both are open source. herdr is licensed under Apache-2.0 and synthadoc under AGPL-3.0. Neither carries a licence fee.
What is the difference between herdr and synthadoc?
herdr is written in Rust 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, herdr or synthadoc?
Choose herdr if you want the larger community (47,557 stars) or its Apache-2.0 licence terms. Choose synthadoc if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.