YetAnotherForum.NET (YAF.NET) is an Open Source Discussion Forum for sites running ASP.NET. 100% written in C#. YAF.NET runs on any web server that supports ASP.NET v4.0 and SQL Server 2005 or above.

YAF.NET is a feature rich communication platform combining an International Open Source community and the Microsoft's technologies.

• Written in C# ASP.NET (Microsoft .NET Framework v4 and above)
• Microsoft SQL Server 2005/2008 database
• Uses AJAX and jQuery for controls
• Source available under GPL

• Forum
• Instant Chat System with Fly out
• Individual user graphic "Album" system with automatic thumbnails feature
• Polls

• Timestamps are displayed in relative Time that refreshes automatically
• Multilingual support (also for RTL languages)
• Unicode (UTF-8) encoding
• RSS & Atom Feeds for all Pages (e.g. Forums, Topics, Active Discussion)
• Daily Email Digest
• Multiple Languages Supported
• Available as stand-alone application, DotNetNuke and Rainbow Portal Module
• Stable and Secure
• Great Performance - Even for forums with a large numbers of users and posts,

• META keywords/description tags generated on topic pages.

• Single Sign On via Facebook
• Single Sign On via Twitter
• Automatically Register New Users that Login via Facebook
• Automatically Register New Users that Login via Twitter

• True ASP.NET Membership/Role/Profile Provider support -- no depedancies.
• user system with unlimited roles and permissions
• Rank System (with Rank Images)
• Group/Role specific features including: Colors, Private Message limitions and signature limitions.
• Login via Username/Display Name/Email and Password

• Possibility to hide forums when user has no access.
• Access rights based on groups.
• SSL Compatible
• Captcha (Integrated Support for reCaptcha)
• Email Verification
• IP Banning and user "kill" system.
• Bad Word Replacement System
• SPAM Protection
• Full support for the Akismet Anti-spam Service for filtering spam messages
• Full support for the BlogSpam.net Blog & Forum SPAM Detection Service

• Runs as a User Control (.ascx) in .NET allowing simpler site and CMS integration.
• Dynamic plugin engine allowing module extensions.
• Custom "BBCode" extension system allowing adding of community features.
• URL Rewriting
• Completely Localization (With Integrated Language Editor)
• Custom "BBCode" extension system

• XHTML Validated.
• Feed Syndication (RSS & Atom)

• Supports common "Rich Text Editors"
• CKEditor included as an option.
• TinyMCE included as an option.
• Users can choose between Editor HTML and BBCode Editor.

• Unlimited number of categories & forums
• Sub Forums
• Per forum moderators and permissions

• Topic Display Options - Threaded and Normal
• Topic and forum Email Notification
• Visitors who are viewing the topic are shown
• New Post Indicator
• Printer friendly topic view
• Tools to Manage Topics - Edit, Delete, Move, etc.
• Subscribe the Topic via Atom or RSS Feed
• Topic Timestamps are displayed in relative Time e.g. "4 minutes ago"
• Predefined Statuses can be assigned to topics

• Supports all Common BBCodes
• Supports Custom BBCodes
• Supports HTML in post
• Supports Smilies/emotions (.PAK compatible).
• Optional WYSIWYG or standard (BBCode) editors for posts
• Attachment stored on file system
• Attachment Images with Modal Image View
• Quick Replay Box for fast Replying
• Preview Post when writing a Post
• Polls
• Post Reporting - report posts to moderators
• User post count
• Thank System
• Post Timestamps are displayed in relative Time e.g. "4 minutes ago"

• Member Profile Page
• Member List (With Search)
• Optional - Member Theme selection
• Private Messaging
• Buddy List
• Who's Online
• Member Signatures
• Favorite Topics List
• User Albums
• Reputation System with unique Reputation Bar
• User Read Tracking

• Admin Defined Avatar Galleries
• Custom Avatars - Users can upload from computer or specify a URL
• Option to use Gravatar Avatars

• Users can send Private Messages to other Users
• Pop Up Notification on new PMs.
• Optional Email Notification on new PMs

• Permission system, based on user rank role and forum access mask

• Multiple attachments and file types (types defined by Admin)
• Storage type options for attachments (database or file system)

• These Settings include Daylight Saving, Time zone, Editor Options, Language chooser and theme chooser
• Auto-Watch Topics - where a user leaves his posts
• Email notifications for new posts in forums or in topics
• Admin & Host Features

• Board stats
• Administrators can mass email to all users or specific group.
• Mass User Import/Export
• Database Maintenance
• Run SQL Queries
• Admin Maintenance

• Prune Topics
• Attachment Management
• Private Messages Management
• Event Log
• Restart Application

• Isolated CSS Theming system: won't conflict with an existing site.
• Template for easy integration with your current site design.
• 10 Themes are included plus one Mobile Theme

• Multiple Languages Supported
• 24 Language Files included
• Built-In Language Manager
• Help
• Included a Customizable Help Guide

• Internal search engine for advanced searching
• Quick Search
• External Search Engines

• Retrieve Usenet articles from NNTP Servers

• Free Community based Support Forum here: http://forum.yetanotherforum.net/.

YAF is also available as an DotNetNuke Module, you can download it on the CodePlex Page

A "sandbox" test forum is available here: http://testforum.yetanotherforum.net/.

See a real live YAF Forum by visiting the Yet Another Forum.NET community support forum: http://forum.yetanotherforum.net. Also, get your questions answered by the YAF community.

Yet Another Forum.NET is licensed under GPLv2. If this license does not fit your business, please visit our site.