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Dev tools · February 10, 2016

TF

Transcrypt – Fast, small Python 3.5 to JavaScript transpiler

The Transcrypt Python to JavaScript compiler makes it possible to program lean and fast browser applications in Python. Transcrypt applications can use any JavaScript library and can also run on top of Node.js or be used in combination with Django.

Transcrypt – Fast, small Python 3.5 to JavaScript transpiler launched on February 10, 2016 with 121 votes, #311 of 4,386 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 10 years on.

Visit transcrypt.org ↗Alternativestop 7% of February 2016

In plain words

Transcrypt is a Python to JavaScript compiler that allows developers to write browser applications in Python 3.5 syntax. It transpiles Python code into fast, readable JavaScript that can be debugged using sourcemaps, and supports Python features like string slicing, matrix operations, and hierarchical modules. Applications built with Transcrypt can integrate with any JavaScript library, run on Node.js, or work with Django backends.

written from the facts on this page · September 2026

From the sources

Transcrypt has exactly the same clear, powerful syntax that Python is famous for, without the need for any proprietary extensions. It supports string slicing with [i:j:k], matrix and vector operations with +, -, *, / and more, out of the box. It precompiles to fast, readable JavaScript that can be debugged from the Python source code using sourcemaps. Python was designed for large scale programs from the ground up. Hierarchical modules, local classes and multiple inheritance are all supported by Transcrypt, allowing a flexible, yet stable overall structure. Transcrypt comes integrated with a static type validator, a linter and a minifier, enabling effective cooperation of large teams on…from transcrypt.org

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