Audio & Music

Mutagen

Python module for handling audio metadata

Status
Generally available
Last checked
Checked · Oct 16, 2026
License
Open source
Pricing
Free tier · from $0

What it is

Mutagen is a Python library designed to handle audio metadata. It supports various formats and allows developers to read, write, and manipulate tags in audio files.

Mutagen stands out with its comprehensive support for multiple audio formats and a simple, yet powerful API for handling metadata.

When it fits — and when it doesn’t

A good fit for

  • Developers working on projects involving the manipulation and extraction of metadata from various audio file formats.

  • Audio application developers who need a robust library for handling different types of audio files.

Look elsewhere if

  • Projects that require real-time streaming capabilities as Mutagen is focused on local file operations.

  • Applications needing advanced AI-based audio processing beyond metadata manipulation.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited support for certain audio formats

    Mutagen's support for less common audio formats like WAVPACK or Musepack is either limited or non-existent.

  2. 02

    Inconsistent API across different file types

    The methods and properties available for manipulating metadata differ significantly between supported formats, leading to a more complex integration process.

  3. 03

    Poor documentation for advanced use cases

    While basic operations are covered in the documentation, detailed explanations or examples for handling specific edge cases or less common metadata fields are lacking.

  4. 04

    Performance issues with large files or datasets

    Mutagen may exhibit slow performance when dealing with a large number of audio files or very large individual file sizes, which can be problematic in production environments.

What it does well

  • Supports multiple audio formats including MP3, Ogg Vorbis, FLAC, and more.

  • Allows for reading and writing metadata tags in various formats.

  • Provides a simple API for manipulating audio file metadata.

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

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Set up Mutagen

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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