head to head · open source
PyMuPDF vs yomiyasu
PyMuPDF has 10,838 GitHub stars, 810 forks, 58 open issues and last shipped yesterday. yomiyasu has 1,589 stars, 36 forks, 3 open issues and last shipped yesterday. PyMuPDF leads on adoption by 582% (10,838 vs 1,589 stars). PyMuPDF is written in Python under AGPL-3.0; yomiyasu is written in Python under MIT. PyMuPDF has attracted 7% as many forks as stars, yomiyasu 2%. PyMuPDF 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
| PyMuPDF | yomiyasu | |
|---|---|---|
| GitHub stars | ★ 11K | ★ 1.6K |
| License | AGPL-3.0 | MIT |
| Written in | Python | Python |
| Last push | 2026-10-06 | 2026-10-06 |
| Forks | ⑂ 810 | ⑂ 36 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick PyMuPDF if
- You weight community size — 11K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick yomiyasu if
- You want the yomiyasu feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and yomiyasu fits your workflow better
About PyMuPDF
PyMuPDF is a high performance Python library, built on the MuPDF C engine, for extracting, analysing, converting, rendering and manipulating PDF and other documents, aimed at Python developers building data extraction, document processing and AI retrieval pipelines.
read the full PyMuPDF overview →
About yomiyasu
yomiyasu is an Agent Skill that rewrites AI generated Japanese into natural, readable prose, for writers, engineers and editors who draft technical articles, design documents, pull request descriptions and internal reports with LLMs.
read the full yomiyasu overview →
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Frequently asked questions
Is PyMuPDF or yomiyasu more popular?
PyMuPDF has 10,838 GitHub stars and yomiyasu has 1,589. PyMuPDF has the larger community by that measure.
Are PyMuPDF and yomiyasu free?
Both are open source. PyMuPDF is licensed under AGPL-3.0 and yomiyasu under MIT. Neither carries a licence fee.
What is the difference between PyMuPDF and yomiyasu?
PyMuPDF is written in Python and yomiyasu 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, PyMuPDF or yomiyasu?
Choose PyMuPDF if you want the larger community (10,838 stars) or its AGPL-3.0 licence terms. Choose yomiyasu if its feature set, stack or MIT licence fits better. Both are self-hostable.