head to head · open source
rembg vs NegPy
rembg has 25,141 GitHub stars, 2,443 forks, 3 open issues and last shipped 12 days ago. NegPy has 1,089 stars, 99 forks, 59 open issues and last shipped 2 days ago. rembg leads on adoption by 2,209% (25,141 vs 1,089 stars). rembg is written in Python under MIT; NegPy is written in Python under GPL-3.0. rembg has attracted 10% as many forks as stars, NegPy 9%. NegPy was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (image-processing), so they are genuine substitutes rather than adjacent tools.
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
| rembg | NegPy | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 1.1K |
| License | MIT | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-10-10 | 2026-10-20 |
| Forks | ⑂ 2.4K | ⑂ 99 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick rembg if
- You weight community size — 25K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick NegPy if
- You want the NegPy feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and NegPy fits your workflow better
About rembg
Rembg is a tool to remove image backgrounds. It can be used as a CLI, Python library, HTTP server, or Docker container. Sponsors PhotoRoom Remove Background API Fast and accurate background remover API If this project has helped you, please consider making a donation. Requirements bash pip install "rembg[gpu]" for library pip install "rembg[gpu,cli]" for library + cli bash pip install "rembg[rocm]" for library pip install "rembg[rocm,cli]" for library + cli shell rembg help shell rembg help shell curl s rembg i output.png shell rembg i path/to/input.png path/to/output.png shell rembg i path/to/input.png →…
read the full rembg overview →
About NegPy
NegPy NegPy turns scans of film negatives and slides into finished pictures. I wrote it because I wanted a tool made for film scans that does more than invert them. It models film and photographic paper, and adds the conveniences of a lab scanner. It is written in Python and runs on Linux, macOS and Windows. The User Guide covers every panel and control (the ⓘ on each panel opens it in the app). PIPELINE.md explains the math. Languages The desktop interface and panel guides support English, Simplified Chinese (简体中文), Japanese (日本語) and Korean (한국어). Choose a language in Preferences → Interface → Language , then…
read the full NegPy overview →
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Frequently asked questions
Is rembg or NegPy more popular?
rembg has 25,141 GitHub stars and NegPy has 1,089. rembg has the larger community by that measure.
Are rembg and NegPy free?
Both are open source. rembg is licensed under MIT and NegPy under GPL-3.0. Neither carries a licence fee.
What is the difference between rembg and NegPy?
rembg is written in Python and NegPy 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, rembg or NegPy?
Choose rembg if you want the larger community (25,141 stars) or its MIT licence terms. Choose NegPy if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.