Code Quality Rank: L5
Programming language: JavaScript
License: MIT License
Tags: File Sharing and Synchronization     Distributed filesystems     Peer-to-peer filesharing    

instant.io alternatives and similar software solutions

Based on the "Peer-to-peer filesharing" category.
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Streaming file transfer over WebTorrent (torrents on the web)

Download/upload files using the WebTorrent protocol (BitTorrent over WebRTC). This is a beta.

Powered by WebTorrent, the first torrent client that works in the browser without plugins. WebTorrent is powered by JavaScript and WebRTC. Supports Chrome, Firefox, Opera (desktop and Android). Run localStorage.debug = '*' in the console and refresh to get detailed log output.


If you just want to do file transfer on your site, or fetch/seed files over WebTorrent, then there's no need to run a copy of instant.io on your own server. Just use the WebTorrent script directly. You can learn more at https://webtorrent.io.

The client-side code that instant.io uses is here.

Run a copy of this site on your own server

To get a clone of https://instant.io running on your own server, follow these instructions.

Get the code:

git clone https://github.com/webtorrent/instant.io
cd instant.io
npm install

Modify the configuration options in config.js to set the IP/port you want the server to listen on.

Copy secret/index-sample.js to secret/index.js and update the options in there to a valid TURN server if you want a NAT traversal service (to help peers connect when behind a firewall).

To start the server, run npm run build && npm start. That should be it!


  1. Create a shareable link by adding a torrent infohash or magnet link to the end of the URL. For example: https://instant.io#INFO_HASH or https://instant.io/#MAGNET_LINK.

  2. You can add multiple torrents in the same browser window.


MIT. Copyright (c) WebTorrent, LLC.

*Note that all licence references and agreements mentioned in the instant.io README section above are relevant to that project's source code only.