head to head · open source
sharp vs Concat
sharp has 32,817 GitHub stars, 1,447 forks, 123 open issues and last shipped 5 days ago. Concat has 13,787 stars, 1,701 forks, 44 open issues and last shipped yesterday. sharp leads on adoption by 138% (32,817 vs 13,787 stars). sharp is written in JavaScript under Apache-2.0; Concat is written in Rust under AGPL-3.0. sharp has attracted 4% 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
| sharp | Concat | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 14K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | JavaScript | Rust |
| Last push | 2026-10-29 | 2026-11-02 |
| Forks | ⑂ 1.4K | ⑂ 1.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick sharp if
- You weight community size — 33K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches JavaScript
- 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 sharp
sharp The typical use case for this high speed Node API module is to convert large images in common formats to smaller, web friendly JPEG, PNG, WebP, GIF and AVIF images of varying dimensions. It can be used with all JavaScript runtimes that provide support for Node API v9, including Node.js ( = 20.9.0), Deno and Bun. Resizing an image is typically 4x 5x faster than using the quickest ImageMagick and GraphicsMagick settings due to its use of libvips. Colour spaces, embedded ICC profiles and alpha transparency channels are all handled correctly. Lanczos resampling ensures quality is not sacrificed for speed. As…
read the full sharp 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 sharp or Concat more popular?
sharp has 32,817 GitHub stars and Concat has 13,787. sharp has the larger community by that measure.
Are sharp and Concat free?
Both are open source. sharp is licensed under Apache-2.0 and Concat under AGPL-3.0. Neither carries a licence fee.
What is the difference between sharp and Concat?
sharp is written in JavaScript 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, sharp or Concat?
Choose sharp if you want the larger community (32,817 stars) or its Apache-2.0 licence terms. Choose Concat if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.