Prompteu is a private library for the prompts you actually reuse. Save them once, fill in the blanks, and send them straight to Claude, ChatGPT, Gemini or Midjourney — on the web and on Android, synced with end-to-end encryption.
No card, no ads, no tracking, no sign-up needed. Add a free account whenever you like to back up and sync — close the tab or lose your phone, nothing is lost.
Send prompts to the AI you already use
Your good prompts are scattered across chats, notes and screenshots. Prompteu keeps them in one place — organised, versioned and one tap from the AI you want.
Write {{client_name}} once and Prompteu asks for it every time you use the prompt. It remembers your answers and spots details that should become variables for you.
Open Claude, ChatGPT, Gemini, Grok, Perplexity, Copilot or Midjourney with your prompt ready — filled in where the app supports it, copied where it doesn’t. Add any other AI you use.
Every edit is kept — up to 40 versions per prompt — with a side-by-side diff, so you can go back to the wording that worked.
Improve a prompt, draft one from a rough idea, suggest titles and tags, or split a long prompt into phases. Uses your own Claude, ChatGPT, Gemini, Grok or DeepSeek key — no middleman.
Collections, tags, favourites and types. Search everything, sort by last used, and turn through your library on a smooth dial.
Sensitive prompts can be blurred until you tap them, and copied prompts are cleared from the clipboard after a minute on Android.
Your library lives on your device first. No connection? Everything still works, and it syncs when you’re back.
Export everything as JSON, text or a full archive at any time. Import from the web, Android or older Promptbook exports.
Paste a prompt that worked. Prompteu suggests a title, tags and the parts that should be variables.
Next time, just fill in the blanks — client, topic, tone. Your usual answers are remembered.
Tap the AI you want. Prompteu opens it with your prompt, or copies it ready to paste.
Before anything leaves your device, Prompteu encrypts your whole library with a key only your password can unlock. Our servers store a sealed box — no prompts, no titles, no tags — and never see your password.
Works in any modern browser on Windows, Mac, Linux and ChromeOS. Install it as an app from your browser menu.
Open the web appThe full app, with share-to-Prompteu, home-screen shortcuts, haptics and hardware-backed encryption. Coming to Google Play.
Join early accessNot on the roadmap yet — the web app works on iPhone in the meantime. Join the list and tell us you want it.
Tell usLeave your email and we’ll send you an invite when the Android app opens. One email, no newsletter unless you ask for it.
We only use your email to tell you about Prompteu’s launch. See our privacy policy.
Yes — everything is free during early access. If we add paid plans later, we’ll tell you at least 30 days before anything changes, and you’ll always be able to export your prompts.
No. Prompteu works straight away and saves your prompts on your device. A free account is optional: create one any time (email or Google) and everything you save is backed up within seconds and synced between the web and Android — so clearing your browser or changing phones never loses anything.
Use the recovery key you saved when you signed up: reset your password by email, enter the recovery key, and your prompts unlock with the new password. We can’t unlock them for you without it — that’s what end-to-end encryption means — so keep the key somewhere safe.
No. Prompts are encrypted on your device before they’re uploaded, and API keys never leave your device except to go to the AI provider you chose.
Claude, ChatGPT, Gemini, Grok, DeepSeek, Perplexity, Microsoft Copilot and Midjourney out of the box — and any other AI app or website you add yourself.
Only for AI assist (improving and drafting prompts). Saving, filling and sending prompts to AI apps works without any key.
Yes. Import a Prompteu JSON file or paste one in; exports from older Promptbook versions work too. You can export everything at any time.