fastjsonschema

PyPI v2.21.2

29,219,495 weekly downloads · BSD-3-Clause · 0 Dependencies

Zero dependencies

Source data as of:

Summary

Fastest Python implementation of JSON schema

Install pip install fastjsonschema

Registry values

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

Weekly downloads 29,219,495 Source: PyPI (Python Package Index)
Releases 45 Last release: 2025-08-14 Source: PyPI (Python Package Index)
Dependencies 0 Source: PyPI (Python Package Index)

Description

Fastest Python implementation of JSON schema

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

Package details

Package
fastjsonschema
Registry
PyPI
Version
2.21.2
Weekly downloads
29,219,495 (weekly)
License
BSD-3-Clause
Dependencies
0
Releases
45
Last release
2025-08-14
First published
2016-10-05
Homepage
https://github.com/horejsek/python-fastjsonschema
Repository
https://github.com/horejsek/python-fastjsonschema

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 43.6 / 100 Maintenance activity index (release cadence + download level).
Q-Trust Quanteta 14.6 / 100 Adoption / stability index (community size + download stability + age).
Q-Risk Quanteta 40.5 / 100 Dependency-surface index. Higher = more risk factors detected.

Data & Sources