SMF 2.0.x es un sistema de foros muy versátil. Tiene muchas características, incluidas las siguientes:

General

• Usa PHP, y un sistema de base de datos: MySQL, PostgreSQL o SQLite.
• Sistema completo de plantillas.
• Administración avanzada de usuarios y permisos.
• Soporta múltiples idiomas a la vez.
• Código fuente abierto y bien referenciado.
• Seguimiento de temas no leídos viejos y nuevos, no solo desde la última visita.
• Diseñado para tener un desempeño óptimo y escalable.
• Formato de difusión multimedia: XHTML, XML, RSS, WAP.
• Soporte multi-lenguaje de una gran comunidad.
• Administración de paquetes que instala o desinstala modificaciones automáticamente (también conocidos como paquetes o mods).
• Búsqueda:
  • Búsqueda en el foro completo, una categoría/foro específico o dentro de un solo tema.
  • Búsqueda dentro de tus mensajes personales.

Seguridad

• Al menos todas las acciones requieren un código de autorización basado en sesiones.
• Las herramientas administrativas requieren de la contraseña del usuario (y no confiar únicamente en cookies).
• Las acciones principales son bloqueadas por un tiempo e IP, previniedo 'hammering'.
• El número de intentos de inicio de sesión para una IP específica puede ser limitado y bloqueado por un tiempo.

Configuración del foro

• Habilidad para mostrar el tiempo de creación de una página y conteo de querys por página.
• Poner un foro en mantenimiento, permitiendo que solo los administradores inicien sesión.
• Censura de palabras, ya sea completa o parcial.
• Habilidad para dividir palabras largas.

Foros y categorías

• Agrupar foros en categorías colapsables.
• Establecer categorías como no colapsables.
• Reordenar foros dentro de las categorías, o reordenar categorías.
• Crear foros de nivel inferior dentro de otros foros(Sub foros).
• Asignar moderadores a los foros.
• Permitir que ciertos grupos de miembros puedan acceder a un foro, incluyendo solamente a los visitantes.
• Configurar los permisos para cada grupo de miembros a nivel de foros.
• Capacidad para indicar nuevos mensajes en foros de nivel inferior, pero ninguno nuevo en el foro superior.

Registro de miembros

• Se requiere registro antes del ingreso al foro.
• Se requiere que un usuario acepte el acuerdo de registro antes de registrarse.
• Se puede deshabilitar completamente el registro de miembros (permitiendo que solo los moderadores registren a las personas).
• Se requiere autenticación por email enviando un enlace de autenticación.
• Se requiere que un moderador apruebe el registro.
• Se pueden registrar nuevos miembros desde el centro de administración.

Member Navigation and Authentication

• Password reminder option, by email with confirmation (doesn't automatically reset your password).
• Both cookie and session based authentication (works without cookies).
• Cookies can be set local to a path, global to all subdomains, or normally.
• Adjustable expiration time for authentication cookies.

Member Tracking and Tracing

• Sortable and searchable public memberlist (accessible by a permission).
• Powerful sortable and searchable admin memberlist.
• Show all (error) messages and IPs made by a member (track user).
• Show all (error) messages from an IP address or range (track IP).
• See who's doing what (accessible by permission).

Statistics

• Several board statistics (accessible by permission).
• Tracking of member's online time in seconds.
• Tracking of topics, messages, new members, and hits per day.
• Individual member statistics accessible from their profile.

News and Announcements

• Send a Newsletter from the admin center, or post any topic as an Announcement.
• Member option to disable receiving announcements (and Admin override of this option).
• Email or private message your members by membergroup.
• Show a news fader.

Communication

• Ability to choose sendmail or SMTP (with or without authentication).
• Ability to send a topic to a friend.
• Ability to view a "printer friendly" version of topics.

Membergroups

• Create membergroups to group members on permissions, access rights, and/or appearance.
• Assign several membergroups to a single member, with one membergroup as the primary group.
• Define membergroups that are auto-assigned based on the amount of posts a user has.
• Determine the maximum number of personal messages a membergroup is allowed to have by group.
• Assign badge or star to a membergroup - by primary group.
• Determine which membergroups are allowed to access a board.

Banning

• Ban members based on their username, email address, IP address or hostname.
• Support of wildcards for email address, IP address, and hostname.
• Include a ban reason (viewable for the banned user).
• Include a ban note (only viewable by the administrators).
• Choose between full ban, 'no post' ban, or registration ban.
• Include an expiration time for bans.

External integration

• Integrate parts of the forum software into an existing website using SSI or PHP.
• Recent topics or posts.
• Recent news posts in a board.
• Recent polls.

Exporta datos del foro usando XML/RSS

• Últimos miembros.
• Noticias.
• Mensajes recientes.

Wireless access

• Support for WAP, WAP2 and I-mode protocols.
• Browse through boards/topics/messages with reduced page size.
• Ability to login and logout.
• Ability to see new topics/boards with new replies.
• Ability to jump to first unread reply.
• Ability to post new messages.

Theming and Templating

• Ability to allow or disallow your users to select their own theme.
• Ability to reset all of your members to a certain theme.
• Ability to install a new theme via your administration center.
• Admin can add smileys and smiley sets.
• Members can choose which smiley set they wish to use (or none).
• SSI can have and show layers and the like from the template system.

Posting Features

• Spell Check.
• Quick Reply
  • Members can disable it or collapse it.
  • Can be used with "Quote".
  • Also contains "Spell Check".
• Vast number of Bulletin Board Codes to use (including rtl, acronym, and others).
• Optional editing grace period before a post is shown as modified.
• Insert Quote feature on posting screen to quickly quote previous replies.

Polls

• Can be added or removed to existing topics.
• Ability to set expiration date.
• Ability to hide results till expiration of poll.
• Ability to hide results until after people have voted.
• Ability to determine how many votes a user may cast.
• Polls can have up to 256 options.

Attachments

• Allowed on a per member group or board basis.
• The filename is hashed to increase the security (so you can upload .php files).
• Optional restriction on what filetypes may be uploaded.
• Ability to restrict such that only registered members can view them (disables hotlinking, mostly).
• Images can be embedded into posts.

Calendar Support

• Shows Birthdays, Events and Holidays.
• Display calendar information on board index.
• Link an existing topic to the calendar.
• Allow only certain members/groups to post events.
• Event poster can edit event.
• Events can span multiple days.

Moderation Tools

• Ability to lock and unlock a topic.
• Topics which are locked by an administrator can not unlocked by anyone else.
• Ability to allow members to use moderation on just topics they posted.
• Report to moderator link.
• Delete or modify posts.
• Ability to merge/split topics.
• Move or delete topics.
• Sticky or unsticky topics.
• Recycle bin/board for all deleted topics and posts.
• Moderation log which shows moderation activity and dissallows the removal of log entries until they are at least 24-hours old.
• AJAX editing:
  • Edit a post without page reloads.
  • Double click to edit topic subjects on message index.

User Profiles and User Options

• Ability to hide your email address from the public.
• Select favorite theme among the activated forum themes.
• Select smiley set from the ones available.
• Email notification
  • New topics per board.
  • Single topics.
  • Private messages.
• Login with 'invisible' mode.
• Options to hide other members' avatars and signatures.
• Ability to download and resize uploaded avatars.
• Personal text, avatar, signature, and all the niceties of forums can be used and are kept up to date in all your posts.

User Resources

• Icons for topics you've posted to.
• Show new replies to your posts.
• Collapsible 'Additional Options' on post screen.
• Ability to view most recent messages.
• List all topics that have new replies since your last visit.
• See who is browsing the same boards or topics as you.
• Topics that span multiple pages have the page numbers listed as well as an "all" link.

Other features

• Several forum statistics.
• List of users online.
• The menu bar.
• News.
• Search.
• Login/logout.
• Today's events/birthdays/holidays.