Better prompts, one click from your toolbar
PromptVault Companion is a tiny popup that turns rough ideas into clear prompts, lets you pick the AI you use, and keeps your favourites in your vault.
Free. No account or API keys needed — works offline.
What it does
Improve any prompt
Type a rough idea and get a clear, structured prompt in one click — tuned to what you're asking for.
Pick your AI, then launch
Choose ChatGPT, Claude, Gemini, Perplexity, DeepSeek or Midjourney. Edit the result, copy it, or open it there.
My Vault
Save prompts you like and find them again with a quick search — copy or launch in a tap.
Private and light
Works offline, keeps everything on your device, and never reads or changes the pages you visit.
Install it in under a minute
- Download and unzip promptvault-extension.zip.
- Open chrome://extensions in Chrome, Edge, Brave, Arc or Opera.
- Turn on Developer mode in the top-right corner.
- Click Load unpacked and select the unzipped folder.
- Pin PromptVault Companion to your toolbar — you're done.
The extension isn't on the Chrome Web Store yet, so it installs as an unpacked extension. It works in every Chromium browser. Questions? Email info@prompt-vault.net.