head to head · open source
Audacity vs OpenImageIO
Audacity has 18,671 GitHub stars, 2,679 forks, 1,781 open issues and last shipped yesterday. OpenImageIO has 2,378 stars, 707 forks, 143 open issues and last shipped yesterday. Audacity leads on adoption by 685% (18,671 vs 2,378 stars). Audacity is written in C++ under a custom or non-standard licence; OpenImageIO is written in C++ under Apache-2.0. Audacity has attracted 14% as many forks as stars, OpenImageIO 30%. 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 | OpenImageIO | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 2.4K |
| License | Custom / other | Apache-2.0 |
| Written in | C++ | C++ |
| Last push | 2026-10-07 | 2026-10-07 |
| Forks | ⑂ 2.7K | ⑂ 707 |
| 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 OpenImageIO if
- You want the OpenImageIO feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C++
- You evaluated both and OpenImageIO 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 OpenImageIO
OpenImageIO is a C++ toolset and format agnostic image I/O library for reading, writing, and processing images across the file formats used in visual effects and animation, built for VFX studios and the developers of renderers, compositors, viewers, and other production pipeline software.
read the full OpenImageIO overview →
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Frequently asked questions
Is Audacity or OpenImageIO more popular?
Audacity has 18,671 GitHub stars and OpenImageIO has 2,378. Audacity has the larger community by that measure.
Are Audacity and OpenImageIO free?
Both are open source. Audacity has no licence declared in this registry, and OpenImageIO is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Audacity and OpenImageIO?
Audacity is written in C++ and OpenImageIO in C++. 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 OpenImageIO?
Choose Audacity if you want the larger community (18,671 stars) or its Custom / other licence terms. Choose OpenImageIO if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.