# @libp2p/mplex

> JavaScript implementation of https://github.com/libp2p/mplex

Latest version **12.0.32** (published 2026-09-02) · Apache-2.0 OR MIT license · 0 weekly downloads

## Install

```sh
npm install @libp2p/mplex
pnpm add @libp2p/mplex
yarn add @libp2p/mplex
bun add @libp2p/mplex
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; recently updated; high maintenance score; high quality score.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 12.0.32 |
| Published | 2026-09-02 |
| First published | 2022-02-15 |
| Weekly downloads | 0 |
| License | Apache-2.0 OR MIT |
| TypeScript types | bundled |
| Module format | ESM |
| Dependencies | 6 |
| Unpacked size | 406.6 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 2578 |
| Maintainers | daviddias, alanshaw, achingbrain, vascosantos, npm-service-account-libp2p, jacobheun |
| Keywords | IPFS, connection, duplex, libp2p, mplex, multiplex, muxer, stream |

## Links

- npm: https://www.npmjs.com/package/@libp2p/mplex
- Repository: https://github.com/libp2p/js-libp2p
- Homepage: https://github.com/libp2p/js-libp2p/tree/main/packages/stream-multiplexer-mplex#readme
- Issues: https://github.com/libp2p/js-libp2p/issues
- npm.io page: https://npm.io/package/@libp2p/mplex

## Dependencies (6)

- [it-pushable](https://npm.io/package/it-pushable.md) ^3.2.3
- [uint8arrays](https://npm.io/package/uint8arrays.md) ^6.1.1
- [uint8-varint](https://npm.io/package/uint8-varint.md) ^3.0.0
- [@libp2p/utils](https://npm.io/package/@libp2p/utils.md) ^7.4.1
- [uint8arraylist](https://npm.io/package/uint8arraylist.md) ^3.0.2
- [@libp2p/interface](https://npm.io/package/@libp2p/interface.md) ^3.3.0

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## Recent versions

- 12.0.32 (latest) — 2026-09-02
- 12.0.31-5cb617ae2 (next) — 2026-09-02
- 12.0.31-185d901cd — 2026-09-02
- 12.0.31 — 2026-08-31
- 12.0.30-cef4d32cf — 2026-08-31
- 12.0.30-ac7305ccf — 2026-08-31
- 12.0.30-87dca02b0 — 2026-08-27
- 12.0.30-4a6c5d11a — 2026-08-27
- 12.0.30 — 2026-08-23
- 12.0.29-947d304ed — 2026-08-22
- 12.0.29-0967e75f5 — 2026-08-22
- 12.0.29-4dae661b4 — 2026-08-22
- 12.0.29-8786aa8d0 — 2026-08-20
- 12.0.29-55d7a539a — 2026-08-20
- 12.0.29-d5534174d — 2026-08-13
- … 954 more at https://npm.io/package/@libp2p/mplex/versions

## README

# @libp2p/mplex

[![libp2p.io](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](http://libp2p.io/)
[![Discuss](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg?style=flat-square)](https://discuss.libp2p.io)
[![codecov](https://img.shields.io/codecov/c/github/libp2p/js-libp2p.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p)
[![CI](https://img.shields.io/github/actions/workflow/status/libp2p/js-libp2p/main.yml?branch=main\&style=flat-square)](https://github.com/libp2p/js-libp2p/actions/workflows/main.yml?query=branch%3Amain)

> JavaScript implementation of <https://github.com/libp2p/mplex>

# Install

```console
$ npm i @libp2p/mplex
```

## Browser `<script>` tag

Loading this module through a script tag will make its exports available as `Libp2pMplex` in the global namespace.

```html
<script src="https://unpkg.com/@libp2p/mplex/dist/index.min.js"></script>
```

> JavaScript implementation of <https://github.com/libp2p/mplex>

# API Docs

- <https://libp2p.github.io/js-libp2p/modules/_libp2p_mplex.html>

# License

Licensed under either of

- Apache 2.0, ([LICENSE-APACHE](https://github.com/libp2p/js-libp2p/blob/main/packages/stream-multiplexer-mplex/LICENSE-APACHE) / <http://www.apache.org/licenses/LICENSE-2.0>)
- MIT ([LICENSE-MIT](https://github.com/libp2p/js-libp2p/blob/main/packages/stream-multiplexer-mplex/LICENSE-MIT) / <http://opensource.org/licenses/MIT>)

# Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

---
_Source: https://npm.io/package/@libp2p/mplex · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._