head to head · open source
Audacity vs pymatting
Audacity has 18,695 GitHub stars, 2,682 forks, 1,781 open issues and last shipped 2 days ago. pymatting has 1,921 stars, 227 forks, 11 open issues and last shipped 1 months ago. Audacity leads on adoption by 873% (18,695 vs 1,921 stars). Audacity is written in C++ under a custom or non-standard licence; pymatting is written in Python under MIT. Audacity has attracted 14% as many forks as stars, pymatting 12%. Audacity 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
| Audacity | pymatting | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 1.9K |
| License | Custom / other | MIT |
| Written in | C++ | Python |
| Last push | 2026-10-09 | 2026-09-08 |
| Forks | ⑂ 2.7K | ⑂ 227 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Audacity if
- You weight community size — 19K stars and counting
- You want the Custom / other license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick pymatting if
- You want the pymatting feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and pymatting fits your workflow better
About Audacity
Audacity is an open source audio editor and recorder written in C++ and distributed under free software terms. It lives in the open source desktop audio editing ecosystem, where it provides a multi track interface for recording and editing audio on Windows, macOS, GNU/Linux, and other operating systems. The README describes the project as an easy to use audio tool, and the repository contains both the Audacity 3.x line and the in progress Audacity 4 line.
read the full Audacity overview →
About pymatting
PyMatting is a Python library for alpha matting that lets developers and researchers estimate a foreground object's alpha channel from an image and a hand drawn trimap.
read the full pymatting overview →
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Frequently asked questions
Is Audacity or pymatting more popular?
Audacity has 18,695 GitHub stars and pymatting has 1,921. Audacity has the larger community by that measure.
Are Audacity and pymatting free?
Both are open source. Audacity has no licence declared in this registry, and pymatting is licensed under MIT. Both are free to self-host.
What is the difference between Audacity and pymatting?
Audacity is written in C++ and pymatting 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, Audacity or pymatting?
Choose Audacity if you want the larger community (18,695 stars) or its Custom / other licence terms. Choose pymatting if its feature set, stack or MIT licence fits better. Both are self-hostable.