kawanet/msgpack-lite

Health v2 · maintenance only

Adoption not part of the score

1036 stars · 132 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A fast, pure JavaScript MessagePack encoder and decoder library for Node.js and browsers, with support for streaming encode/decode and a CLI for converting between JSON and MessagePack. It works with Buffer, Array, and Uint8Array inputs.

Use cases

• encode javascript objects to messagepack binary format
• decode messagepack buffers back to javascript objects
• stream multiple messagepack objects to a file or socket
• convert json to messagepack from the command line
• serialize data compactly for network or storage in node.js or browser

When to choose

• you need a fast, dependency-light MessagePack codec in JavaScript
• you need streaming encode/decode of many objects
• you need a CLI to convert between JSON and MessagePack
• you need browser and Node.js support from one library

When to avoid

• you need JSON only - use the built-in JSON API
• you need a schema-based or typed serialization format like protobuf
• you need MessagePack extensions with custom types beyond this library's support

Facets

library · maturity stable

serialization cli developer-tools apis browser cli cross-platform msgpack messagepack encoder decoder streaming javascript data-engineering nodejs

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