Your prompts should outlive any one AI
The tools change every few months. A new model, a new app, a new "best" way to work. But the prompts you refine, the way you learn to ask, the context you build up — that's yours, and it should follow you wherever you go.
PromptCase exists so it can. One library you own, that plugs into every AI tool — so you're never starting over, and never stuck.
Every AI wants to be your everything
Your chats, your context, your history, the way you've learned to talk to it — all of it lives inside one company's walls. The longer you stay, the more it costs to leave.
That's not an accident. When your memory is locked to a single tool, switching means starting from scratch — so you don't. The lock-in is the moat.
A memory layer you own
We think that's backwards. Your prompt history and your style should sit above the tools, not inside them.
So PromptCase captures the prompts you write — from your browser, your terminal, your editor — into one library that's yours. Then it plugs that library into every AI tool you use. Capture once, use everywhere. Switch models or apps whenever you like; your library, your personality and your history come with you.
Your AI brain, on your terms
Not another place your data gets trapped — a layer that makes every tool adapt to you.
Your data is yours
Export it or delete it any time. We capture only what you write — never AI responses — and we never sell your data. Leaving is always an option, which is exactly why you won't need to.
Works with every tool
Browser, terminal and editor today; any MCP-capable app — Claude Code, Cursor, VS Code, Windsurf, Codex and more — through one connection. We add tools; we don't ask you to abandon the ones you love.
It learns how you think
The more you save, the more PromptCase understands your voice — so it can sharpen a rough draft in your own style. Your personality, carried into every tool, instead of re-taught to each one.
Start building a library that's yours
Free to start — capture your prompts once and take them everywhere. No credit card required.