---
id: werkzeug
version: "3.1.8"
license: BSD-3-Clause
license_treatment: permissive
maintenance: active
---

# Werkzeug — The comprehensive WSGI web application library.

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

## Install

pip install werkzeug
uv add werkzeug
poetry add werkzeug

## Description

<div align="center"><img src="https://raw.githubusercontent.com/pallets/werkzeug/refs/heads/stable/docs/_static/werkzeug-name.svg" alt="" height="150"></div>

# Werkzeug

*werkzeug* German noun: "tool". Etymology: *werk* ("work"), *zeug* ("stuff")

Werkzeug is a comprehensive [WSGI][] web application library. It began as
a simple collection of various utilities for WSGI applications and has
become one of the most advanced WSGI utility libraries.

It includes:

-   An interactive debugger that allows inspecting stack traces and
    source code in the browser with an interactive interpreter for any
    frame in the stack.
-   A full-featured request object with objects to interact with
    headers, query args, form data, files, and cookies.
-   A response object that can wrap other WSGI applications and handle
    streaming data.
-   A routing system for matching URLs to endpoints and generating URLs
    for endpoints, with an extensible system for capturing variables
    from URLs.
-   HTTP utilities to handle entity tags, cache control, dates, user
    agents, cookies, files, and more.
-   A threaded WSGI server for use while developing applications
    locally.
-   A test...

## AI interpretation — verify before relying

Werkzeug is a comprehensive WSGI web application library providing request/response objects, URL routing, an interactive debugger, HTTP utilities, a development server, and a test client for building web applications.

Verdict: Werkzeug is a mature, well-maintained WSGI foundation library with no known vulnerabilities, minimal dependencies, and permissive licensing. It is suitable for production use and widely adopted in the Python web ecosystem.

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