Simple Machines Forum
Simple Machines Forum: A free, self-hosted forum platform for technical users who want control. Ranked #11 of 29 in Forum Hosting by our editors (7.9/10); pricing: Free plan; best for technical users wanting a free self-hosted forum.
At a glance
- Editor score7.9 / 10
- PricingFree plan
- Best forTechnical users wanting a free self-hosted forum
- Free planYes
- Paid fromFree
- Facts checked21 Sep 2026
Where it wins
- Free and open-source for self-hosted forum administration
- Includes permissions, search, messaging, calendars, and directories
- Supports private communities with notifications and unread-content features
Where it doesn't
- Requires administrators to handle hosting and infrastructure
- No hosted subscription option or official paid plans
- Broader integrations and maturity details are limited
Our verdict on Simple Machines Forum
Simple Machines Forum (SMF) is free, open-source software for creating and operating online discussion communities. It is distributed for installation on an administrator's own infrastructure rather than as a hosted subscription service. The core feature set covers user registration and login, permission-controlled forum access, topic and message posting, forum search, personal messaging, calendars, member directories, and unread-content and notification features. Private communities are supported, making SMF relevant for technical teams, clubs, and administrators who want direct control over their forum environment.
The main appeal is the breadth of core community functions available without a paid plan. Members can register, sign in, participate in discussions, search forum content, exchange personal messages, view calendars, and browse member lists. Permission controls help administrators manage access to forums, while unread-content and notification features support ongoing participation. This makes SMF a practical fit when the priority is a traditional discussion forum with several built-in community tools rather than a hosted service with subscription-based administration.
Self-hosting also defines the main trade-off. Administrators are responsible for hosting, domain, storage, and infrastructure costs, which depend on the selected hosting provider. The published product details do not describe an official hosted tier or paid plan, so organizations seeking a managed forum service should consider alternatives. SMF is better suited to technical users comfortable installing and operating software themselves. Choose it for free, open-source forum ownership and configurable access; choose another product if managed hosting or a broader integration ecosystem is the priority.
Your product? Our editors can test Simple Machines Forum in depth and publish a review, labelled as paid · from $149/mo →
Simple Machines Forum pricing
Simple Machines Forum fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Custom domain | Not verified |
| Private communities | Yes |
| Moderation tools | Not verified |
| Email notifications | Not verified |
| SSO support | Not verified |
| File storage | Not verified |
| Data export | Not verified |
| Deployment | Self-hosted |
| Platforms | Web |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | simplemachines.org |
| Facts checked | 21 Sep 2026 |
Alternatives to Simple Machines Forum
- DiscourseA mature forum platform with structured discussions, chat, moderation, and flexible hosting.9.4
- Invision CommunityA broad community suite for forums, private groups, events, content, apps, and monetization.9.2
- XenForoA feature-rich forum platform for communities that need deep moderation and permissions.9.0
See all Simple Machines Forum alternatives →
Also Ranked In
Simple Machines Forum is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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