---
title: RealtimeKit
description: Add live video and voice to web or mobile apps with RealtimeKit SDKs and APIs.
image: https://developers.cloudflare.com/dev-products-preview.png
---

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/realtime/llms.txt  
> Use this file to discover all available pages before exploring further.

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# RealtimeKit

Add live video and voice to your web or mobile apps in minutes — customizable SDKs, Integrate in just a few lines of code.

With RealtimeKit, you can expect:

* **Fast, simple integration:** Add live video and voice calling to any platform using our SDKs in minutes.
* **Customizable:**Tailor the experience to your needs.
* **Powered by WebRTC:**Built on top of modern, battle-tested WebRTC technology. RealtimeKit sits on top of [Realtime SFU](https://developers.cloudflare.com/realtime/sfu/) handling media track management, peer management, and other complicated tasks for you.

Experience the product:

[ Try A Demo Meeting ](https://demo.realtime.cloudflare.com) [ Build using Examples ](https://github.com/cloudflare/realtimekit-web-examples) [ RealtimeKit Dashboard ](https://dash.cloudflare.com/?to=/:account/realtime/kit) 

## Build with RealtimeKit

RealtimeKit powers a wide range of usecases — here are the most common ones

#### Group Calls

Experience team meetings, virtual classrooms with interactive plugins, and seamless private or group video chats — all within your platform.

#### Webinars

Host large, interactive one-to-many events with virtual stage management, and engagement tools like plugins, chat, and polls — ideal for product demos, company all-hands, and live workshops

#### Audio Only Calls

Host audio-only calls — perfect for team discussions, support lines, and community hangouts— low bandwidth usage and features like mute controls, hand-raise, and role management.

## Product Suite

* [**UI Kit**](https://developers.cloudflare.com/realtime/realtimekit/ui-kit)  Recommended  UI library of pre-built, customizable components for rapid development — sits on top of the Core SDK.
* [**Core SDK**](https://developers.cloudflare.com/realtime/realtimekit/core) Client SDK built on top of Realtime SFU that provides a full set of APIs for managing video calls, from joining and leaving sessions to muting, unmuting, and toggling audio and video.
* [**Realtime SFU**](https://developers.cloudflare.com/realtime/sfu) efficiently routes media with low latency—all running on Cloudflare’s global network for reliability and scale.

The **Backend Infrastructure** Powering the SDKs is a robust layer that includes REST APIs for managing meetings, participants, recordings and more, along with webhooks for server-side events. A dedicated signalling server coordinates real-time updates.

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/realtime/","name":"Realtime"}},{"@type":"ListItem","position":3,"item":{"@id":"/realtime/realtimekit/","name":"RealtimeKit"}}]}
```