jsonpath-ng

A final implementation of JSONPath for Python that aims to be standard compliant, including arithmetic and binary comparison operators and providing clear AST for metaprogramming.

jsonpath-ng Permissive license Apache 2.0 Active ★ 735 v1.8.0 released 2026-02-24

Install

jsonpath-ng on PyPI

pip

pip install jsonpath-ng

uv

uv add jsonpath-ng

poetry

poetry add jsonpath-ng

Package facts

License	Apache 2.0 (permissive)
Python support	not specified
Install friction	low — pure-Python wheel
Runtime dependencies	none
Maintenance	actively maintained — 170 days since the last release
Last repo commit	2026-08-01
First released	2017-03-12
Popularity	one of the top 1,000 most-downloaded packages on PyPI (30-day window, as of 2026-08-13)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-13)

Evidence: jsonpath_ng-1.8.0-py3-none-any.whl

Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14

About jsonpath-ng

from the package's own PyPI description — quoted content, verbatim

Python JSONPath Next-Generation |Build Status| |PyPI|

A final implementation of JSONPath for Python that aims to be standard compliant, including arithmetic and binary comparison operators, as defined in the original JSONPath proposal_.

This packages merges both jsonpath-rw and jsonpath-rw-ext and provides several AST API enhancements, such as the ability to update or remove nodes in the tree.

About

This library provides a robust and significantly extended implementation of JSONPath for Python. It is tested with CPython 3.10 and higher.

This library differs from other JSONPath implementations in that it is a full language implementation, meaning the JSONPath expressions are first class objects, easy to analyze, transform, parse, print, and extend.

Quick Start

To install, use pip:

.. code:: bash

$ pip install --upgrade jsonpath-ng

Usage

Basic examples:

.. code:: python

$ python

&gt;&gt;&gt; from jsonpath_ng import jsonpath, parse

# A robust parser, not just a regex. (Makes powerful extensions possible; see below)
&gt;&gt;&gt; jsonpath_expr = parse('foo[*].baz')

#...

Read as markdown · JSON record · Source repository · Homepage

AI interpretation — verify before relying

AI-generated interpretation of the package facts above; every digit, version, license, or vulnerability id it cites is grounded in the facts already shown on this page

Parses and evaluates JSONPath expressions against JSON data, supporting standard operators, arithmetic comparisons, and AST manipulation for querying, updating, and filtering nested structures.

Low friction: pure Python wheel with no runtime dependencies, tested on CPython 3.10–3.14, and actively maintained with a recent release (170 days ago).

Apache 2.0 permissive license allows commercial and private use with minimal restrictions; attribution required but no copyleft obligations.

Usage

pip install jsonpath-ng

from jsonpath_ng import parse

jsonpath_expr = parse('foo[*].baz')
matches = jsonpath_expr.find({'foo': [{'baz': 1}, {'baz': 2}]})
values = [match.value for match in matches]
print(values)  # [1, 2]

Verdict: Production-ready JSONPath implementation with zero security vulnerabilities, no external dependencies, and active maintenance. Suitable for applications requiring robust JSON querying with support for updates and filtering.

Needs verification

Performance characteristics compared to other JSONPath libraries for large datasets
Completeness of JSONPath standard compliance relative to RFC or formal specification

jsonpath query languagejson path expression parserextract values from jsonquery nested json datajson tree navigationjsonpath update remove nodesstandard compliant jsonpath