---
id: mmh3
version: "5.2.1"
license: MIT License Copyright (c) 2011-2026 Hajime Senuma Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to… (full text in the JSON record)
license_treatment: permissive
maintenance: active
---

# mmh3 — Python extension for MurmurHash (MurmurHash3), a set of fast and robust hash functions.

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

## Install

pip install mmh3
uv add mmh3
poetry add mmh3

## Description

# mmh3

[![Documentation Status](https://readthedocs.org/projects/mmh3/badge/?version=stable)](https://mmh3.readthedocs.io/en/stable/)
[![GitHub Super-Linter](https://github.com/hajimes/mmh3/actions/workflows/superlinter.yml/badge.svg?branch=master)](https://github.com/hajimes/mmh3/actions?query=workflow%3ASuper-Linter+branch%3Amaster)
[![Build](https://github.com/hajimes/mmh3/actions/workflows/build.yml/badge.svg?branch=master)](https://github.com/hajimes/mmh3/actions/workflows/build.yml?branch=master)
[![PyPi Version](https://img.shields.io/pypi/v/mmh3.svg?style=flat-square&logo=pypi&logoColor=white)](https://pypi.org/project/mmh3/)
[![Python Versions](https://img.shields.io/pypi/pyversions/mmh3.svg)](https://pypi.org/project/mmh3/)
[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://opensource.org/license/mit/)
[![Total Downloads](https://static.pepy.tech/badge/mmh3)](https://pepy.tech/projects/mmh3?versions=*%2C5.*%2C4.*%2C3.*%2C2.*)
[![Recent...

## AI interpretation — verify before relying

mmh3 is a Python extension for MurmurHash3, providing fast non-cryptographic hash functions optimized for probabilistic data structures like Bloom filters and MinHash, as well as favicon hashing.

Verdict: mmh3 is a stable, actively maintained library with zero known vulnerabilities, broad platform coverage via prebuilt wheels, and permissive MIT licensing. It is well-suited for production use in applications requiring fast, non-cryptographic hashing for probabilistic data structures and favicon fingerprinting.

[View on SkillFed](https://skillfed.io/packages/mmh3) · [View on PyPI](https://pypi.org/project/mmh3/)