Software your business can actually own.
We spent years customizing business software — fighting slow systems, brittle views, and upgrade paths that barely existed. So we built the platform we wished we'd had.
Fullfinity is an open-core Business OS: one modern system that runs sales, inventory, accounting, HR, projects, manufacturing and more — where every app shares a single database and a single design, so your data connects itself.
Most business software forces a trade-off. The all-in-one suites are powerful but closed, slow, and expensive to change. The point tools are pleasant but disconnected, and you end up stitching them together with spreadsheets. We didn't want to accept either.
So Fullfinity is built on a modern, fast, async foundation, with an extensibility model that doesn't fight the people using it — and its core apps are open source, and the whole system is yours to host anywhere. The name is the idea: a full platform, without limits. That's the infinity mark.
The principles we build by.
No half measures
If a feature needs to be correct, we build it completely — tax, edge cases, the integration seam and all. No deliberately-incomplete cuts.
Own your data
The core apps are open source and the whole system is self-hostable. Your business runs on software you can run, keep and leave with — no lock-in, ever.
Better, not just different
We study what good products do, then improve on how they do it. A cleaner model beats a familiar one.
Upgrades are free
Moving to a new version should never be a paid consulting project. It carries your data forward automatically — a single upgrade step, not a project.
How it's different from what you're used to.
Not another tool to add to the pile — the system the pile was supposed to be.
One system, not fifteen
One database under every app, so a sale, a stock move and an invoice are all connected — not a dozen tools you reconcile with spreadsheets at midnight.
Priced for growth
The Free edition is free for your whole team, forever — unlimited users. No per-seat bill that climbs every time you hire.
Free upgrades, no migrations
New versions carry your data forward automatically — never a paid "upgrade project" or a supported-version ultimatum.
Own it or let us run it
Self-host the whole platform for free, or take a managed cloud. Same product, your choice — and you can move between them.
Modular, real depth
Start with one app and add the rest as you grow. Sixty-plus that actually run a business — tax, multi-currency, BOMs, payroll, offline POS.
No lock-in, by design
Open-source core, open formats, full export. The exit door is always unlocked — we earn the renewal by being worth it.
Come build on something better.
Join the waitlist and be first through the door when Fullfinity launches.
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