Specifiction
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
List your tool
Vendor dashboard
Tech riderRev. 30 Sept 2026

Cython

Ch 077.2of 28 Code Transpilers
  1. 1Runs onLinux, Mac, Windows
  2. 2CostsFree plan
  3. 3Syntax-version conversionNo
  4. 4Intermediate outputNo
  5. 5CLI accessYes
  6. 6API accessYes
  7. 7Conversion modesource-to-source
7 lines stated Written from the maker's own pages: cython.org
Visit site Alternatives
The Cython homepage

Overview

Cython is ranked #7 of 28 in code transpilers on Specifiction. It runs on Linux, macOS, Windows. There is a free plan.

Cython plans and pricing

All plans
Cython Free Freely available under the open source Apache 2.0 License cython.org · 30 Sept 2026

Compared on code transpilers

Free plan
Yescython.org
Syntax-version conversion
Nocython.org
Intermediate output
Nocython.org
CLI access
Yescython.org
API access
Yescython.org
Conversion mode
source-to-sourcecython.org

Facts

What it does
Cython is an optimising static compiler for Python and the extended Cython language, used to write C extensions for Python.cython.org · 30 Sept 2026
Generated code
Cython translates source code into C or C++ code that can be compiled as Python extension modules.docs.cython.org · 30 Sept 2026
Static typing
Optional static type declarations can help generate more efficient C code from Python-like code.docs.cython.org · 30 Sept 2026
C and C++
Cython lets Python code call C or C++ code and supports declaring C or C++ types.cython.org · 30 Sept 2026
Debugging
Cython supports combined source-level debugging across Python, Cython and C code.cython.org · 30 Sept 2026
Data and libraries
The project describes using Cython with multidimensional NumPy arrays and integrating with existing low-level libraries and applications.cython.org · 30 Sept 2026
Installation
The documentation recommends installing Cython with pip and says some scientific Python distributions, including Anaconda and Sage, bundle it.docs.cython.org · 30 Sept 2026
Build requirement
Cython requires a C compiler; the installation guide gives compiler guidance for Linux, macOS and Windows.docs.cython.org · 30 Sept 2026
Python compatibility
The homepage says generated code compiles with major C and C++ compilers for CPython 3.8 and later, and describes PyPy support as mostly usable.cython.org · 30 Sept 2026
Experimental support
The homepage says support for the CPython Limited API and free-threading CPython is available in Cython 3.1 but considered experimental.cython.org · 30 Sept 2026
Support channels
The homepage directs users with questions to the Cython users mailing list and links a separate core developer mailing list.cython.org · 30 Sept 2026
Intended use
The project identifies wrapping external C libraries, embedding CPython in existing applications and speeding up Python code with fast C modules as use cases.cython.org · 30 Sept 2026

Best Cython alternatives

See all 20
All accessCh 01 SWC Free planAndroidAPI Free to start7.6 All accessCh 02 Google Web Toolkit Free planBrowserLinux Free to start7.5 All accessCh 03 Transcrypt Free planLinuxMac Free to start7.5 All accessCh 04 ClojureScript Free planLinuxMac Free to start7.4 All accessCh 05 Kotlin/JS Free planLinuxMac Free to start7.4 All accessCh 06 Babel Free planAPILinux Free to start7.3

Where it ranks on Specifiction

Is Cython yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote Cython

Sources