Free tools
Free tools for building apps with AI. They run in your browser. No account needed.
App feature list generator
Free app feature list generator: describe your app idea and get a first feature list in build order, ready to paste into Lovable, Bolt or Cursor.
Open the tool →Prompt checker
Free prompt checker for Lovable, Bolt, Cursor and Claude Code: paste a prompt and see what's missing before it costs you credits.
Open the tool →AI coding cost calculator
Free calculator: see what your Claude Code or Codex use would cost at API prices, and which plan fits you. Pro, Max, Plus or ChatGPT Pro.
Open the tool →Lovable credit calculator
Free Lovable credit calculator: see how many credits a month you use, how many go to fixing, and which Lovable plan fits you.
Open the tool →PRD template
Free PRD template (product requirements document template) for Lovable, Bolt, v0, Cursor and Claude Code. Answer ten questions, then copy or download it.
Open the tool →