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by BrowserSync

BrowserSync /browser-sync

Keep multiple browsers & devices in sync when building websites.

11.2K Stars 717 Forks Last release: almost 2 years ago (v2.26.3) Apache License 2.0 2.0K Commits 225 Releases

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Keep multiple browsers & devices in sync when building websites.

Browsersync is developed and maintained internally at JH

Follow @Browsersync on twitter for news & updates.



Please visit for a full run-down of features


Browsersync works by injecting an asynchronous script tag (

<script async>...</script>

) right after the

tag during initial request. In order for this to work properly the

tag must be present. Alternatively you can provide a custom rule for the snippet using snippetOptions

Upgrading from 1.x to 2.x ?

Providing you haven't accessed any internal properties, everything will just work as there are no breaking changes to the public API. Internally however, we now use an immutable data structure for storing/retrieving options. So whereas before you could access urls like this...

browserSync({server: true}, function(err, bs) { console.log(bs.options.urls.local); });

... you now access them in the following way:

browserSync({server: true}, function(err, bs) { console.log(bs.options.getIn(["urls", "local"])); });

Install and trouble shooting docs

Integrations / recipes

Browsersync recipes


If you've found Browser-sync useful and would like to contribute to its continued development & support, please feel free to send a donation of any size - it would be greatly appreciated!

Support via PayPal

Apache 2 Copyright (c) 2019 Shane Osbourne

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