Download 5.7.0.zip (UltraJSON)

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UltraJSON Overview

Ultra fast JSON decoder and encoder written in C with Python bindings

UltraJSON is an ultra-fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. May be used as a drop-in replacement for most other JSON parsers for Python. Used to enable special encoding of "unsafe" HTML characters into safer Unicode sequences. Limits output to ASCII and escapes all extended characters above 127. Default is True. If your end format supports UTF-8, setting this option to false is highly recommended to save space. By default, debugging symbols are stripped on Linux platforms. Setting this environment variable with a value of 1 or True disables this behavior. Users planning to link against an external shared library should be aware of the ABI-compatibility requirements this introduces when upgrading system libraries or copying compiled wheels to other machines.

Additional Details for UltraJSON

Operating Systems

Linux, Windows

Programming Language

Registered

2022-04-29

Last Updated

2025-08-20

Maintainers

sf-editor1

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UltraJSON