List of free and open-source web applications
All web applications , both traditional and Web 2.0 , are operated by software running somewhere. This is a list of free software which can be used to run alternative web applications. Also listed are similar proprietary web applications that users may be familiar with. Most of this software is server-side software, often running on a web server .
Application Service License Requirements Similar proprietary web application(s) Collabora Online Online office suite MPLv2.0 Google Docs , Microsoft 365 Gallery Photo sharing GPLv3 PHP + MySQL [ 1] flickr , Picasa Piwigo Photo sharing GPL PHP + MariaDB / MySQL [ 2] flickr , Picasa OpenBroadcaster Video streaming AGPLv3+ MySQL YouTube Plumi Video streaming GPL | ZPL YouTube PeerTube Video streaming AGPLv3+ YouTube Libre.fm Music streaming AGPLv3+ PostgreSQL or MySQL last.fm CiteSeerX Bibliographic database Apache MySQL or PostgreSQL SpringerLink OpenStreetMap Mapping ODbL MySQL or PostgreSQL Google Maps ownCloud File sharing /sync , web calendar , online office suite etc. AGPLv3 Dropbox , drop.io Nextcloud File sharing /sync , web calendar , online office suite etc. AGPLv3+ PHP + MariaDB / MySQL / Oracle / PostgreSQL / SQLite [ 3] Dropbox , Google Drive , Microsoft 365 , box Seafile File sharing /sync , web calendar , online office suite etc. GPLv2 Dropbox , drop.io Tahoe Least-Authority File Store File sharing GPLv2+ Dropbox , drop.io iFolder File sharing GPLv2+ Dropbox , drop.io AbiCollab Online file editing GPLv2 MySQL or PostgreSQL Google Docs Etherpad Online file editing Apache MySQL or PostgreSQL Google Docs Eucalyptus (computing) Virtual machine provisioning GPLv3 Amazon EC2 OpenNebula Virtual machine provisioning Apache SQLite3 Amazon EC2 DokuWiki Wiki GPLv2 Wikispaces MediaWiki Wiki GPLv2+ MySQL or PostgreSQL Wikispaces TiddlyWiki Wiki BSD license Web browser Evernote , Microsoft OneNote Open Journal Systems Publication management GPLv2 MySQL or PostgreSQL WordPress Blogging GPLv2 PHP + MariaDB / MySQL [ 4] blogger.com LiveJournal Blogging GPLv2+ blogger.com Ghost Blogging MIT License JavaScript , node.js blogger.com GNU Social Distributed social network AGPLv3 MySQL or PostgreSQL Twitter Mastodon Distributed social network AGPLv3 PostgreSQL Twitter AppScale Virtual web hosting BSD Google AppEngine PHPGroupware Online office suite GPLv2 Google Docs eGroupware Online office suite GPLv2 Google Docs Feng Office Online office suite AGPL Google Docs Roundcube Web mail GPLv3+ with exceptions for skins and plugins Gmail , Hotmail IMP Web mail GPLv2 IMAP server Gmail , Hotmail Squirrelmail Web mail GPLv2 Gmail , Hotmail Mailman Mailing lists GPL Google Groups , Yahoo Groups FluxBB Forum GPLv2 phpBB Forum GPLv2 MyBB Forum GNU LGPL Phorum Forum Phorum 2.0 Vanilla Forum GPLv2 Discourse Forum GPLv2+ LimeSurvey Internet survey GPLv2 SurveyMonkey , Google Form creator Tiny Tiny RSS RSS reader GPLv3 Google Reader pump.io Social aggregation Apache FriendFeed Meneame Social news AGPLv3 Digg Mixx Social news Digg Friendica Distributed social network MIT Facebook Diaspora Distributed social network AGPL Facebook BuddyPress Distributed social network GPL WordPress Facebook Elgg Distributed social network GPLv2 / MIT Facebook Scuttle Social bookmarking Delicious Connotea (discontinued) Social bookmarking Delicious Ma.gnolia 2 (discontinued) Social bookmarking Delicious Apertium Translation GPLv2 Google Translate EyeOS (version 2.5 and earlier) Homepage AGPLv3 iGoogle OpenCroquet Virtual world MIT SecondLife OpenSimulator Virtual world BSD SecondLife bitwarden Password manager GPLv3 , AGPLv3 node.js Dashlane , LastPass Mattermost Web chat MIT , AGPLv3 , Apache License 2.0 Slack Element Web chat Apache License 2.0 Slack
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