ujson

PyPI v5.12.0

11,822,105 weekly downloads · BSD-3-Clause AND TCL · 0 Dependencies

Recently publishedZero dependencies

Source data as of:

Summary

Ultra fast JSON encoder and decoder for Python

Install pip install ujson

Registry values

Reproduced verbatim from the official registry, with the source named on each value.

Weekly downloads 11,822,105 Source: PyPI (Python Package Index)
Releases 40 Last release: 2026-03-11 Source: PyPI (Python Package Index)
Dependencies 0 Source: PyPI (Python Package Index)

Description

Ultra fast JSON encoder and decoder for Python

Registry-supplied description, cleaned to plain text. Source: PyPI (Python Package Index).

Package details

Package
ujson
Registry
PyPI
Version
5.12.0
Weekly downloads
11,822,105 (weekly)
License
BSD-3-Clause AND TCL
Dependencies
0
Releases
40
Last release
2026-03-11
First published
2011-06-16
Homepage
https://github.com/ultrajson/ultrajson
Repository
https://github.com/ultrajson/ultrajson

Why a field shows "—": A dash means the value is not published by the source registry for that package. Quanteta never fills in a guessed value — a missing field stays blank.

Derived indices (computation method published)

Quanteta-computed from the registry values below. This is a derived index, not a measured registry metric. See the formula on the Data & Sources page.

Q-Vitality Quanteta 51.4 / 100 Maintenance activity index (release cadence + download level).
Q-Trust Quanteta 25.0 / 100 Adoption / stability index (community size + download stability + age).
Q-Risk Quanteta 20.9 / 100 Dependency-surface index. Higher = more risk factors detected.

Data & Sources

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