head to head · open source
rembg vs imagor
rembg has 25,470 GitHub stars, 2,492 forks, 3 open issues and last shipped 9 days ago. imagor has 4,059 stars, 180 forks, 2 open issues and last shipped 2 days ago. rembg leads on adoption by 527% (25,470 vs 4,059 stars). rembg is written in Python under MIT; imagor is written in Go under Apache-2.0. rembg has attracted 10% as many forks as stars, imagor 4%. imagor 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 | imagor | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 4.1K |
| License | MIT | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-11-06 | 2026-11-13 |
| Forks | ⑂ 2.5K | ⑂ 180 |
| 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 imagor if
- You want the imagor feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and imagor 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 imagor
imagor imagor is a fast, secure image processing server and Go library. imagor uses one of the most efficient image processing libraries, libvips with the Go binding vipsgen. It is typically 4 8x faster than using the quickest ImageMagick settings. imagor implements libvips streaming to facilitate parallel processing pipelines and achieve high network throughput. Benchmarks show imagor is one of the fastest image processing servers. imagor supports a wide range of image processing use cases, available as a HTTP server with first class Docker support. It adopts the thumbor URL syntax representing a high…
read the full imagor overview →
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Frequently asked questions
Is rembg or imagor more popular?
rembg has 25,470 GitHub stars and imagor has 4,059. rembg has the larger community by that measure.
Are rembg and imagor free?
Both are open source. rembg is licensed under MIT and imagor under Apache-2.0. Neither carries a licence fee.
What is the difference between rembg and imagor?
rembg is written in Python and imagor in Go. 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 imagor?
Choose rembg if you want the larger community (25,470 stars) or its MIT licence terms. Choose imagor if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.