msgspec

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A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML.

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Installation

To install this package, run one of the following:

Conda

$conda install conda-forge::msgspec

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Description

msgspec is a fast serialization and validation library for Python, supporting JSON, MessagePack, YAML, and TOML. It integrates well with Python's type annotations, providing ergonomic (and performant!) schema validation.

About

Summary

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML.

Last Updated

Oct 6, 2026 at 10:32

License

BSD-3-Clause

Supported Platforms

macOS-64

linux-ppc64le

win-64

macOS-arm64

linux-64

linux-aarch64

Home

https://jcristharif.com/msgspec/

GitHub Repository

https://github.com/jcrist/msgspec

Documentation

https://jcristharif.com/msgspec/