SRS (Simple Realtime Server) is a real-time media server built to receive, convert, and distribute audio and video streams for live streaming and WebRTC deployments.
It supports RTMP, WebRTC, HLS, HTTP-FLV, SRT, MPEG-DASH, and GB28181, and works in a typical publish and subscribe model with tools such as FFmpeg, OBS, VLC, and WebRTC clients. SRS also provides interfaces for stream status, callbacks, monitoring, and deployment in self-hosted or cloud-native environments.
This is free and open source software.
Key Features
- Provides protocol conversion between live streaming and RTC workflows.
- Exposes an HTTP API and HTTP callback system for integration, authentication, and automation.
- Includes observability features such as a Prometheus exporter and traceable logs.
- Offers DVR, ingest, forwarding, snapshot, and embedded HTTP server capabilities.
- Supports origin, edge, and HLS clustering for larger scale deployments.
- Works across Linux, Windows, and macOS, with support for multiple CPU architectures.
Website: github.com/ossrs/srs
Support:
Developer: OSSRS Community
License: MIT License
SRS is written in C++. Learn C++ with our recommended free books and free tutorials.
Related Software
| WebRTC Tools | |
|---|---|
| mediasoup | Server-side WebRTC library, specifically a Selective Forwarding Unit (SFU |
| Pion | Modern stack for web real-time communication |
| Jitsi | Innovative voice and video conferencing |
| LiveKit | End-to-end stack for WebRTC |
| OpenVidu | Platform to develop WebRTC real-time applications |
| Janus | Gneral purpose WebRTC server |
| aiortc | Library for WebRTC and ORTC |
| coturn | Implementation of TURN and STUN Server |
| Galene | Easy to deploy videoconference server |
| libpeer | Portable WebRTC library for IoT/embedded devices |
| libdatachannel | WebRTC network library |
| Kurento | WebRTC media server |
| str0m | Sans I/O WebRTC implementation |
| Elixir WebRTC | Elixir implementation of the W3C WebRTC API |
Read our verdict in the software roundup.
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