Side by side
Babel vs Cython
Both stand on code transpilers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APILinuxMac+2
Babel provides a free, plugin-based way to transform JavaScript, with CLI and browser-use options. Keep its type-checking limitation and production guidance in mind when planning a build workflow.
Visit Babel Free plan LinuxMacWindows
Cython offers a route from Python-like source to compiled extension modules, with options for static types, C/C++ interoperation, and debugging. Users need a C compiler, and the listed Limited API and free-threading support remains experimental.
Visit CythonThe facts
| Babel | Cython | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Linux, Mac, Web, Windows | Linux, Mac, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | babel.dev | cython.org |
| On code transpilers | #2 of 28 | #6 of 28 |
Babel: what it does well
- Transforms modern syntax for older environments
- React preset converts JSX
- Plugin-based pipelines can be customized
- CLI compiles directories and watches for changes
- Free and MIT-licensed
What to know first
- Does not perform type checking
- Production documentation recommends ahead-of-time transpilation
- Maintained by volunteers
Cython: what it does well
- Available free under the Apache 2.0 License.
- Generates C or C++ extension-module source.
- Supports declared C and C++ types.
- Provides source-level debugging across Python, Cython, and C.
- Installation guidance covers Linux, macOS, and Windows.
What to know first
- Requires a C compiler.
- Limited API and free-threading support are experimental.
- PyPy support is described as mostly usable.