head to head · open source
rembg vs Concat
rembg has 25,301 GitHub stars, 2,467 forks, 3 open issues and last shipped yesterday. Concat has 13,787 stars, 1,701 forks, 44 open issues and last shipped yesterday. rembg leads on adoption by 84% (25,301 vs 13,787 stars). rembg is written in Python under MIT; Concat is written in Rust under AGPL-3.0. rembg has attracted 10% as many forks as stars, Concat 12%. Concat 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
| rembg | Concat | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 14K |
| License | MIT | AGPL-3.0 |
| Written in | Python | Rust |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.5K | ⑂ 1.7K |
| 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 Concat if
- You want the Concat feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Rust
- You evaluated both and Concat 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 Concat
Concat The truly free, and open source cross platform CapCut replacement. Your logo here Sponsor Concat and your name, logo and link take this slot Your logo here Sponsor Concat and your name, logo and link take this slot Your logo here Sponsor Concat and your name, logo and link take this slot Your logo here Sponsor Concat and your name, logo and link take this slot Your logo here Sponsor Concat and your name, logo and link take this slot Your logo here Sponsor Concat and your name, logo and link take this slot About Concat is a free, open source video editor and a CapCut alternative for macOS, Windows, Linux…
read the full Concat overview →
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Frequently asked questions
Is rembg or Concat more popular?
rembg has 25,301 GitHub stars and Concat has 13,787. rembg has the larger community by that measure.
Are rembg and Concat free?
Both are open source. rembg is licensed under MIT and Concat under AGPL-3.0. Neither carries a licence fee.
What is the difference between rembg and Concat?
rembg is written in Python and Concat in Rust. 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 Concat?
Choose rembg if you want the larger community (25,301 stars) or its MIT licence terms. Choose Concat if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.