---
id: tox
version: "4.59.0"
license: MIT
license_treatment: permissive
maintenance: active
---

# tox — tox is a generic virtualenv management and test command line tool

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install tox
uv add tox
poetry add tox

## Description

# tox

[![PyPI](https://img.shields.io/pypi/v/tox)](https://pypi.org/project/tox/)
[![Supported Python versions](https://img.shields.io/pypi/pyversions/tox.svg)](https://pypi.org/project/tox/)
[![Downloads](https://static.pepy.tech/badge/tox/month)](https://pepy.tech/project/tox)
[![Documentation status](https://readthedocs.org/projects/tox/badge/?version=latest)](https://tox.readthedocs.io/en/latest/?badge=latest)
[![check](https://github.com/tox-dev/tox/actions/workflows/check.yaml/badge.svg)](https://github.com/tox-dev/tox/actions/workflows/check.yaml)

`tox` aims to automate and standardize testing in Python. It is part of a larger vision of easing the packaging, testing
and release process of Python software (alongside [pytest](https://docs.pytest.org/en/latest/) and
[devpi](https://www.devpi.net)).

tox is a generic virtual environment management and test command line tool you can use for:

- checking your package builds and installs correctly under different environments (such as different Python
  implementations, versions or installation dependencies),
- running your tests in each of the environments with the test tool of choice,
- acting as a frontend to continuous...

## AI interpretation — verify before relying

tox automates and standardizes testing across multiple Python environments, managing virtual environments and running test suites with different Python versions, implementations, and dependencies in isolation.

Verdict: tox is a mature, actively maintained testing automation tool (Production/Stable, 3920 GitHub stars, top 1000 PyPI) with permissive MIT licensing, low install friction, and no known vulnerabilities. It is well-suited for standardizing test workflows across Python versions and environments.

[View on SkillFed](https://skillfed.io/packages/tox) · [View on PyPI](https://pypi.org/project/tox/)