livekit

1.9.0

End-to-end stack for WebRTC. SFU media server and SDKs.
livekit/livekit

What's New

v1.9.0

2025-06-05T06:49:09Z

Added

  • Add pID and connID to log context to make it easier to search using pID. (#3518)
  • add server agent load threshold config (#3520)
  • Add a key frame seeder in up track. (#3524)
  • Implement SIP update API. (#3141)
  • Add option to use different pacer with send side bwe. (#3552)
  • Allow specifying extra webhooks with egress requests (#3597)

Fixed

  • Fix missing RTCP sender report when forwarding RED as Opus. (#3480)
  • Take RTT and jitter from receiver view while reporting track stats for (#3483)
  • Fix receiver rtt/jitter. (#3487)
  • fix: fix the wrong error return value (#3493)
  • load mime type before calling writeBlankFrameRTP (#3502)
  • Prevent bind lock deadlock on muted. (#3504)
  • Handle subscribe race with track close better. (#3526)
  • Do not instantiate 0 sized sequencer. (#3529)
  • Fix: Return NotFoundErr instead of Unavailable when the participant does not exist in UpdateParticipant. (#3543)
  • skip out of order participant state updates (#3583)
  • Exclude RED from enabled codecs for Flutter + 2.4.2 + Android. (#3587)
  • protocol update to fix IPv6 SDP fragment parsing (#3603)
  • Forward transfer headers to internal request (#3615)
  • Do not use Redis pipeline for SIP delete. Fixes Redis clustering support. (#3694)

Changed

  • Use a RED transformer to consolidate both RED -> Opus OR Opus -> RED (#3481)
  • refactor: using slices.Contains to simplify the code (#3495)
  • Do not bind lock across flush which could take time (#3501)
  • Log packet drops/forward. (#3510)
  • Clean up published track on participant removal. (#3527)
  • Do not accept unsupported track type in AddTrack (#3530)
  • Use cgroup for memstats. (#3573)
  • Replace Promise with Fuse. (#3580)
  • Do not drop audio codecs (#3590)
  • map PEER_CONNECTION_DISCONNECTED -> CONNECTION_TIMEOUT (#3591)
  • Update mediatransportutil for max sctp message (65K) (#3611)
  • Disable vp9 for safari 18.4 due to compatibility (#3631)
  • Avoid synthesising duplicate feature. (#3632)
  • Take AudioFeatures from AddTrack. (#3635)
  • Use unordered for lossy data channel. (#3653)
  • Send self participant update immediately. (#3656)
  • update mediatransportutil for sctp congestion control (#3673)
The LiveKit icon, the name of the repository and some sample code in the background.

LiveKit: Real-time video, audio and data for developers

LiveKit is an open source project that provides scalable, multi-user conferencing based on WebRTC. It's designed to provide everything you need to build real-time video audio data capabilities in your applications.

LiveKit's server is written in Go, using the awesome Pion WebRTC implementation.

GitHub stars Slack community Twitter Follow GitHub release (latest SemVer) GitHub Workflow Status License

Features

Documentation & Guides

https://docs.livekit.io

Live Demos

Ecosystem

  • Agents: build real-time multimodal AI applications with programmable backend participants
  • Egress: record or multi-stream rooms and export individual tracks
  • Ingress: ingest streams from external sources like RTMP, WHIP, HLS, or OBS Studio

SDKs & Tools

Client SDKs

Client SDKs enable your frontend to include interactive, multi-user experiences.

Language Repo Declarative UI Links
JavaScript (TypeScript) client-sdk-js React docs | JS example | React example
Swift (iOS / MacOS) client-sdk-swift Swift UI docs | example
Kotlin (Android) client-sdk-android Compose docs | example | Compose example
Flutter (all platforms) client-sdk-flutter native docs | example
Unity WebGL client-sdk-unity-web docs
React Native (beta) client-sdk-react-native native
Rust client-sdk-rust

Server SDKs

Server SDKs enable your backend to generate access tokens, call server APIs, and receive webhooks. In addition, the Go SDK includes client capabilities, enabling you to build automations that behave like end-users.

Language Repo Docs
Go server-sdk-go docs
JavaScript (TypeScript) server-sdk-js docs
Ruby server-sdk-ruby
Java (Kotlin) server-sdk-kotlin
Python (community) python-sdks
PHP (community) agence104/livekit-server-sdk-php

Tools

Install

Tip

We recommend installing LiveKit CLI along with the server. It lets you access server APIs, create tokens, and generate test traffic.

The following will install LiveKit's media server:

MacOS

brew install livekit

Linux

curl -sSL https://get.livekit.io | bash

Windows

Download the latest release here

Getting Started

Starting LiveKit

Start LiveKit in development mode by running livekit-server --dev. It'll use a placeholder API key/secret pair.

API Key: devkey
API Secret: secret

To customize your setup for production, refer to our deployment docs

Creating access token

A user connecting to a LiveKit room requires an access token. Access tokens (JWT) encode the user's identity and the room permissions they've been granted. You can generate a token with our CLI:

lk token create \
    --api-key devkey --api-secret secret \
    --join --room my-first-room --identity user1 \
    --valid-for 24h

Test with example app

Head over to our example app and enter a generated token to connect to your LiveKit server. This app is built with our React SDK.

Once connected, your video and audio are now being published to your new LiveKit instance!

Simulating a test publisher

lk room join \
    --url ws://localhost:7880 \
    --api-key devkey --api-secret secret \
    --identity bot-user1 \
    --publish-demo \
    my-first-room

This command publishes a looped demo video to a room. Due to how the video clip was encoded (keyframes every 3s), there's a slight delay before the browser has sufficient data to begin rendering frames. This is an artifact of the simulation.

Deployment

Use LiveKit Cloud

LiveKit Cloud is the fastest and most reliable way to run LiveKit. Every project gets free monthly bandwidth and transcoding credits.

Sign up for LiveKit Cloud.

Self-host

Read our deployment docs for more information.

Building from source

Pre-requisites:

  • Go 1.23+ is installed
  • GOPATH/bin is in your PATH

Then run

git clone https://github.com/livekit/livekit
cd livekit
./bootstrap.sh
mage

Contributing

We welcome your contributions toward improving LiveKit! Please join us on Slack to discuss your ideas and/or PRs.

License

LiveKit server is licensed under Apache License v2.0.


LiveKit Ecosystem
LiveKit SDKsBrowser · iOS/macOS/visionOS · Android · Flutter · React Native · Rust · Node.js · Python · Unity · Unity (WebGL)
Server APIsNode.js · Golang · Ruby · Java/Kotlin · Python · Rust · PHP (community) · .NET (community)
UI ComponentsReact · Android Compose · SwiftUI
Agents FrameworksPython · Node.js · Playground
ServicesLiveKit server · Egress · Ingress · SIP
ResourcesDocs · Example apps · Cloud · Self-hosting · CLI

Description

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Dependencies

  • None
Last updated: Sat Aug 02 2025 06:12:17 GMT-0900 (Hawaii-Aleutian Daylight Time)