A collection of free APIs, instant tools, cheat sheets, AI helpers, and open-source treasures — all in one clean hub. No noise. No friction. Just build.
Climber is Free, Login is not necessary & 95% features on Climber is free.
Climber brings free APIs, tools, learning resources, cheat sheets, and AI helpers into one beautiful surface so you can go from idea to shipped feature without context switching.
Hundreds of public APIs with live testing — weather, crypto, news, mock data, and more. No signup required.
JSON formatter, color picker, regex tester, QR generator and dozens more — all run directly in your browser.
Curated free courses, roadmaps, YouTube channels, books, and cheat sheets — all in one place.
Fresh 2026 AI tools for coding, writing, design, and research — with pricing badges and ready-to-use prompts.
Discover, test, learn, and ship using free APIs, tools, cheat sheets, and AI helpers — all without losing context or switching tabs.
Instantly find free public APIs, browser tools, cheat sheets, and AI helpers that match exactly what you need right now.
Live-test APIs, open tools directly in modals, copy commands with one click — everything works without leaving Climber.
Keep all your favorite resources, APIs, and tools organized. Save what you love and come back to a clean, focused workspace every time.
Explore real screens from Climber without hitting start
