Wave is a proprietary but genuinely free accounting and invoicing platform for small businesses and freelancers, with a free Starter plan covering unlimited invoicing and basic reporting, and a paid Pro plan (~$19/month) adding bank auto-import and receipt scanning. Even on the free tier, your financial data lives on Wave's (now H&R Block-owned) servers rather than infrastructure you control.
Midday gives you the same freelancer-focused financial toolkit as a self-hostable, open-source project, so you control where your data lives even on the free tier.
FAQ
Is there a free, open-source alternative to Wave?
Yes. Midday is open source (AGPL-3.0) and free to self-host, giving you data ownership that Wave's free tier doesn't.
What's the best open-source alternative to Wave?
Midday is the closest match — invoicing, time tracking, and expense management aimed at the same freelancer audience Wave serves.
What are the top open-source alternatives to Wave?
Browse all open-source alternatives to Wave above, or explore the full Finance category for more options.