Feature
Comparing NodeBB to Floxum?
NodeBB is a real-time, Node.js-based forum platform, and it's open source, just like Flarum. So this isn't an open-versus-closed comparison, it's about two different technical foundations and two different approaches to what happens once you want someone else to run it for you.
Where we actually differ
A license built for a marketplace, versus one that discourages it. NodeBB is licensed under the GPLv3, a copyleft license: if you distribute a modified version, you generally have to open-source your changes too, which makes selling closed-source premium plugins for NodeBB legally murky in a way its own community has debated at length. NodeBB doesn't have a marketplace of paid, independently developed extensions, and this is likely a real part of why. Flarum's licensing was set up with commercialization in mind, which is the reason a marketplace like Floxum's can exist at all: hundreds of free extensions, plus a paid tier where developers set their own prices and keep 90% of every sale, Floxum takes a 10% commission, waived entirely for developers who also contribute to Flarum core.
Jurisdiction, with the same honest caveat as always. NodeBB Inc. is a Canadian company based in Toronto. Canada has held EU adequacy status for the commercial sector since 2001, most recently reaffirmed, so this isn't a compliance blocker in the way a non-adequate jurisdiction would be. Where it's worth knowing: Canada is a member of the Five Eyes intelligence-sharing alliance, alongside the US, UK, Australia, and New Zealand, which is a different kind of consideration than commercial GDPR adequacy and one some organizations weigh separately. If that distinction matters to your organization, it's worth a conversation with your own counsel rather than taking a vendor's word for it, ours included. Floxum being an EU company with EU infrastructure sidesteps the question entirely.
Simpler infrastructure if you ever want to run it yourself. NodeBB runs on Node.js with Redis or MongoDB. Flarum runs on PHP with MySQL. Neither is objectively better, but PHP and MySQL hosting is available essentially everywhere, from the cheapest shared hosting to every major cloud provider, which matters if you or a future team member ever wants to self-host without hunting for Node-specific infrastructure.
Where NodeBB is the better choice
NodeBB has real-time chat built into its core architecture from day one, not layered on afterward, which makes sense given its websocket-based design. Floxum ships real-time chat too, through Flarum's Realtime extension, enabled by default on our managed platform, but it's an extension added to a forum-first architecture rather than a core design principle. If your community treats live chat as the central, architecturally load-bearing feature rather than a strong complement to a forum, NodeBB's native approach is a legitimate reason to prefer it. If your team already runs a Node.js stack and wants one less technology to maintain, that's another reason too.
Comparison
Table header label
Table header nodebb
NodeBB
Table header floxum
Floxum
Table open source label
Open source
Table open source nodebb
Yes (GPLv3)
Table open source floxum
Yes
Table jurisdiction label
Company jurisdiction
Table jurisdiction nodebb
Canada (EU adequacy in place, Five Eyes member)
Table jurisdiction floxum
European Union
Table self hosting label
Self-hosting option
Table self hosting nodebb
Yes
Table self hosting floxum
Yes
Table stack label
Tech stack
Table stack nodebb
Node.js, Redis or MongoDB
Table stack floxum
PHP, MySQL
Table chat label
Real-time chat
Table chat nodebb
Built into core
Table chat floxum
Yes, via the Realtime extension, enabled by default on managed hosting
Table extensions label
Extension/plugin marketplace
Table extensions nodebb
Mostly free, community-built, no formal paid marketplace
Table extensions floxum
1,131 free extensions (1.x), 572 and growing (2.x), plus a premium marketplace
Table support label
Official support for self-hosted users
Table support nodebb
Not included
Table support floxum
N/A, self-hosted Flarum draws on the wider Flarum community
Table fit label
Best fit
Table fit nodebb
Real-time-first communities, teams already on Node.js
Table fit floxum
Teams wanting a mobile-first platform with an active extension marketplace and EU jurisdiction
Migration
If you're moving from NodeBB, the data model differences are real, particularly around how chat and forum content are structured, so we'll walk through what maps directly and what needs a different approach.