Best SWC Alternatives in 2026
Updated
20 platforms from code transpilers ranked against SWC on the same published basis.
- 1SWC vs ClojureScript
- 2SWC vs Google Web Toolkit
- 3SWC vs Kotlin/JS
- 4SWC vs Cython
- 6SWC vs Transcrypt
- 7SWC vs Babel
- 8SWC vs Vala
- 9SWC vs CoffeeScript
- 10SWC vs Dart pub
- 11SWC vs Fable
- 12SWC vs Mitosis
- 13SWC vs Haxelib
- 14SWC vs J2ObjC
- 15SWC vs Brython
- 16SWC vs Kalai
- 17SWC vs SourceMeld
- 18SWC vs CodeTransEngine
- 19SWC vs js_of_ocaml
- 20SWC vs JSweet
- 21SWC vs Opal
SWC alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | ClojureScript | 7.3 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 2 | Google Web Toolkit | 7.3 | Free plan | Free | Browser, Linux, Mac, Web, Windows |
| 3 | Kotlin/JS | 7.3 | Free plan | Free | Linux, Mac, Web, Windows |
| 4 | Cython | 7.2 | Free plan | Free | Linux, Mac, Windows |
| 6 | Transcrypt | 7.2 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 7 | Babel | 7.1 | Free plan | Free | API, Linux, Mac, Web, Windows |
| 8 | Vala | 6.9 | Free plan | Free | Linux, Mac, Windows |
| 9 | CoffeeScript | 6.6 | No | — | API, Linux, Mac, Web, Windows |
| 10 | Dart pub | 6.5 | No | — | Linux, Mac, Windows |
| 11 | Fable | 6.2 | No | — | Web |
| 12 | Mitosis | 6.2 | No | — | API, Web |
| 13 | Haxelib | 6.1 | No | — | Linux, Mac, Windows |
| 14 | J2ObjC | 6.0 | No | — | Mac, Linux |
| 15 | Brython | 5.8 | No | — | Web |
| 16 | Kalai | 5.8 | No | — | — |
| 17 | SourceMeld | 5.8 | No | — | — |
| 18 | CodeTransEngine | 5.7 | No | — | — |
| 19 | js_of_ocaml | 5.7 | No | — | Web |
| 20 | JSweet | 5.7 | No | — | Web |
| 21 | Opal | 5.7 | No | — | Web |
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Questions about SWC alternatives
What is the best alternative to SWC?
ClojureScript, number 1 in code transpilers with a score of 7.3 out of 10. The others here: Google Web Toolkit, Kotlin/JS, Cython and 16 more.
What is the best free alternative to SWC?
ClojureScript is the best-ranked alternative with a free plan. 7 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.