head to head · open source
react vs shellcheck
react has 250,617 GitHub stars, 51,386 forks, 1,377 open issues and last shipped 4 days ago. shellcheck has 40,060 stars, 1,946 forks, 1,137 open issues and last shipped 5 days ago. react leads on adoption by 526% (250,617 vs 40,060 stars). react is written in JavaScript under MIT; shellcheck is written in Haskell under GPL-3.0. react has attracted 21% as many forks as stars, shellcheck 5%. react 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
| react | shellcheck | |
|---|---|---|
| GitHub stars | ★ 251K | ★ 40K |
| License | MIT | GPL-3.0 |
| Written in | JavaScript | Haskell |
| Last push | 2026-09-18 | 2026-09-17 |
| Forks | ⑂ 51K | ⑂ 1.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick react if
- You weight community size — 251K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick shellcheck if
- You want the shellcheck feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Haskell
- You evaluated both and shellcheck fits your workflow better
About react
React is a JavaScript library under the MIT licence for building user interfaces, using a declarative, component based model that renders both on the web and, through React Native, on mobile.
read the full react overview →
About shellcheck
ShellCheck is a GPLv3 static analysis tool written in Haskell that gives warnings and suggestions for bash and sh shell scripts, aimed at everyone from beginners tripping over cryptic shell error messages to advanced users guarding otherwise working scripts against future corner cases.
read the full shellcheck overview →
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Frequently asked questions
Is react or shellcheck more popular?
react has 250,617 GitHub stars and shellcheck has 40,060. react has the larger community by that measure.
Are react and shellcheck free?
Both are open source. react is licensed under MIT and shellcheck under GPL-3.0. Neither carries a licence fee.
What is the difference between react and shellcheck?
react is written in JavaScript and shellcheck in Haskell. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, react or shellcheck?
Choose react if you want the larger community (250,617 stars) or its MIT licence terms. Choose shellcheck if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.