---
layout: default
title: Documentation Browsertime 3
description: Read about all you can do with Browsertime.
keywords: tools, documentation, web performance
nav: documentation
category: sitespeed.io
image: https://www.sitespeed.io/img/sitespeed-2.0-twitter.png
twitterdescription: Documentation for Browsertime.
---

# Documentation v4

<img src="{{site.baseurl}}/img/logos/browsertime.png" class="pull-right img-big" alt="Browsertime logo" width="200" height="175">

Browsertime is the heart of sitespeed.io that handles everything with the browser. At the moment we support Chrome and Firefox on desktop and Chrome on Android. But we want to [support Opera (on Android)](https://github.com/sitespeedio/browsertime/issues/150)  and when(?!) iOS Safari supports WebDriver we will add that too. You can see all the latest changes in the [Changelog](https://github.com/sitespeedio/browsertime/blob/master/CHANGELOG.md) for the project.

 * [Introduction](introduction/) - what you can do with Browsertime.
 * [Installation](installation/) - install using npm, yarn or run our Docker containers.
 * [Configuration](configuration/) - there's a lot of things you can do with Browsertime.
 * [More details](details/) - lets checkout how everything works.
 * [Send metrics to Graphite](graphite/) - storing Browsertime metrics in Graphite, the easy way.
