Firebase Studio is listed under App Builders & Vibe Coding, in the Code & Development category on Flocci AI Tools. Google's agentic full-stack app workspace. It is freemium — a usable free tier with paid plans above it, and it lives at firebase.studio.
Firebase Studio is freemium: there is a free tier you can work in and paid plans above it. It is one of 391 freemium tools in the catalog, all labelled the same way so you are never surprised by a paywall.
Firebase Studio does 4 things the catalog singles out: Google's agentic full-stack app workspace; gemini-powered app prototyping; deploy on firebase instantly; generous free workspaces.
a0.dev is the closest free alternative: it sits in the same App Builders & Vibe Coding sub-category and is free tier + paid plans. Anything (Create.xyz), Base44 and Bolt.new also start free. The full list is on the alternatives page.
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