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bolt.diy vs Base44: catalog facts
bolt.diy	Base44
Free Free and open source; you pay only for any model API you connect.	Freemium Free to start, with usage measured in credits.
Web, Self-hosted	Web
Works with the language model of your choice Self-hostable with Docker	Hosting, database, auth and payments included No coding needed
You need to set up and run it yourself Output quality depends on the model you connect	Apps are tied to the Base44 platform Credit-based usage limits
Self-hosted	Web application, Hosted service
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.