Save the prompts you write
on the web — automatically

The moment you hit send on ChatGPT, Claude, Gemini and 10 other AI chat sites, PromptCase quietly saves your prompt to your library — and lets you drop a saved prompt back into any chat box in a couple of keystrokes.

Add it to your browserGet your token

Free on every plan · Chrome, Edge, Brave & Firefox

Works on 13 AI chat sites

One extension covers all of them. Every prompt lands in the same library, labelled with the site it came from — so ChatGPT, Claude and the rest all live together, searchable in one place.

ChatGPTClaudeGeminiMicrosoft CopilotPerplexityMistral Le ChatHuggingChatYou.comPoeGrokBoltLovableReplit
Capture on many AI chat sites, into one libraryA browser window with several site tabs and a short chat, an arrow, and a single PromptCase library card on the right that collects prompts from all of them.Type a prompt…savedPPromptCase
Only the prompt you write is capturedA chat with two bubbles. The assistant's reply on the left is greyed out and marked not saved. The prompt you wrote on the right is highlighted in teal with a tick and a saved label.Assistantnot savedYousaved

Only your prompts, only when you send

It captures the text you wrote, and nothing the AI says back. It acts only at the moment you submit — there's nothing watching in the background.

You're in control of where it works, too: turn capture on or off per site from the extension's options, any time.

Your library, right in the chat box

Type // in any supported chat box and a little menu of your saved prompts appears. Pick one and it drops straight into the message — no copy-pasting, no switching tabs.

There's an Enhance button too: sharpen a rough draft in place before you send it. (Enhance needs AI Brain switched on in your account.)

Type two slashes to insert one of your promptsA chat composer at the bottom showing two typed slashes, with a pop-up menu of your saved prompts above it. The first prompt in the list is highlighted, ready to insert.YOUR PROMPTS//pick a saved prompt…

Add it to your browser

Free, and it takes about a minute. Pick your browser:

Chrome, Edge & Brave

One listing covers all Chromium browsers — Chrome, Microsoft Edge, Brave and the rest. Click Add to your browser and confirm.

Chrome Web Store

Firefox

Get it from Mozilla Add-ons. Click Add to Firefox and confirm the permissions.

Firefox Add-ons

Then connect your account

1

Open the extension's Options

Click the PromptCase icon in your browser's toolbar, then Options.

2

Paste your token

Get it from Dashboard → Devices (Connect Device → Browser Extension) and paste it into the Options page.

3

Choose where it captures (optional)

Under Options → Sources, switch capture on or off for individual sites. On by default everywhere it supports.

Your token is stored by the browser only, and the extension talks to promptcase.dev and nowhere else.

Never lose a good prompt again

Add the extension, connect once, and keep chatting. Your prompts collect themselves.

Add to ChromeAdd to Firefox