Fable
5.6#25 in code transpilersWeb
VisitFable vs Transcrypt
Transcrypt
6.7#3 in code transpilersFree planFree planWebLinuxmacOSSelf-hosted
VisitWhat both publish
| Fact | Fable | Transcrypt |
|---|---|---|
| Compatibility limit | Not all NuGet packages work with Fable; the documentation advises checking whether each library is Fable-compatible. | The documentation says Python exec and eval are unsupported because Transcrypt precompiles code; JavaScript eval is supported. |
| JavaScript output | Fable transpiles F# to ES2015 JavaScript. | Transcrypt generates JavaScript 6 and can minify the output. |
| Language features | The site highlights F# features including immutability by default, pattern matching, units of measure, and type providers. | Listed features include multiple inheritance, async/await, comprehensions, modules, optional static type checking, source maps, and built-in minification. |
| Support | The project repository accepts bug reports and feature requests, and notes that maintainers do not check its Gitter chat regularly. | The FAQ recommends Stack Overflow for help and says commercial support is available on demand. |
| What it does | Fable is a compiler that lets developers use F# to build applications. | Transcrypt compiles a fairly extensive subset of Python into compact, readable JavaScript. |
Fable plans
No prices published.
Transcrypt plans
- TranscryptFree
Pick Fable if…
Fable suits .NET or JavaScript developers who want to build applications with F# and target browser or other language runtimes. It also fits teams comfortable evaluating targets with different maturity levels.
Pick Transcrypt if…
Transcrypt suits Python developers building browser applications who want to work with JavaScript libraries and DOM functions. It may also suit teams compiling Python server code for Node.js.