# WebRTC clients

|           | supported codecs              |
| --------- | ----------------------------- |
| **video** | AV1, VP9, VP8, H265, H264     |
| **audio** | Opus, G722, G711 (PCMA, PCMU) |

WebRTC is an API that makes use of a set of protocols and methods to connect two clients together and allow them to exchange live media or data streams. You can publish a stream with WebRTC and a web browser by visiting:

```
http://localhost:8889/mystream/publish
```

The resulting stream will be available on path `/mystream`.

WHIP is a WebRTC extension that allows to publish streams by using a URL, without passing through a web page. This allows to use WebRTC as a general purpose streaming protocol. If you are using a software that supports WHIP (for instance, latest versions of OBS Studio), you can publish a stream to the server by using this URL:

```
http://localhost:8889/mystream/whip
```

Be aware that not all browsers can publish tracks with any codec, check [Codec support in browsers](../2-features/25-webrtc-specific-features.md#codec-support-in-browsers).

Depending on the network it might be difficult to establish a connection between server and clients, read [Solving WebRTC connectivity issues](../2-features/25-webrtc-specific-features.md#solving-webrtc-connectivity-issues).

Some clients that can publish with WebRTC and WHIP are [FFmpeg](17-ffmpeg.md), [GStreamer](18-gstreamer.md), [OBS Studio](19-obs-studio.md), [Unity](22-unity.md) and [Web browsers](16-web-browsers.md).