a small Chrome extension · made by one person · v1.2

I got tired of pasting the same prompts twenty times a day, so I made this.

PromptVault is a tiny Chrome extension that puts your prompt library inside every AI chat you actually use. Type // to pick one. Type ;cr to expand a saved snippet. That's it.

Get PromptVault — $9 See how it works one-time. no ~~subscription~~. lifetime updates.

What it actually does.

Press `Alt+P`, or just type `//`

A picker opens right there in the chat. Search, hit Enter, prompt is in the input box. No tab-switching, no clipboard. The // trick works in the chat input itself — type two slashes and the picker pops up. Most of the time I never touch a hotkey.

Or use a snippet shortcut: `;cr` → expands

Give a prompt a short name (mine for "code review" is cr). Type ;cr + space anywhere in the chat input and it gets replaced with the full prompt. Like text-expander, but specifically for AI chats. It still keeps whatever you'd already typed before it.

Variables fill themselves where it makes sense

Put {{tone:friendly}} in a prompt and it auto-fills "friendly" as the default. Put plain {{topic}} and it stays as a placeholder you fill in the chat. No popup, no form to fill. The whole point is fewer clicks, not more.

Folders, tags, pin your favorites, that kind of thing

Drag-reorder, full-text search, import/export to a JSON file, right-click any text on the page to save it as a prompt. The boring CRUD stuff that you'd expect, done well enough that you don't think about it.

pin your faves
★ on top

chatgpt.com

Folders

All prompts77
Writing12
Code14
Sales5
Marketing9
Productivity10
Learning8

Search prompts… //

★ Improve My Writing ;polish

Improve the following text for clarity, flow, and friendly tone. Keep my voice…

★ Code Review ;cr

Review the following code for bugs, edge cases, performance, readability…

Cold Outreach Email ;cold

Write a 90-word cold outreach email. Friendly, specific, no fluff…

5 Whys root cause ;5w

Run the 5 Whys on the following problem to find root cause…

SWOT analysis ;swot

Run a SWOT on a subject. Strengths, Weaknesses, Opportunities, Threats…

drag-reorder
folders + prompts

What's actually in it.

No vague "powerful features." Here's the count.

77 useful prompts pre-loaded — writing, code, sales, marketing, productivity, learning, social, career, analysis, business, creative
13 AI chat sites — ChatGPT, Claude, Gemini, AI Studio, Perplexity, Grok (grok.com + x.com), DeepSeek, Copilot, Mistral, T3 Chat, LMArena
2 trigger ways — Alt+P hotkey, or // in any chat input
1 snippet shortcut — type ;name, space, done
0 servers, accounts, telemetry, or analytics — everything stays in your browser
0 external dependencies — opens, exports, imports a single JSON file
~50KB on disk — less than one tab's worth of memory
14-day refund if it doesn't click — reply to your receipt

What this isn't.

Some honest disclaimers, because I'd rather you skip than buy and be disappointed.

Not a prompt store. The 77 starter prompts are useful, but the value is the system, not the wordsmithing. If you want a marketplace of "ultimate prompts," buy something else.
Not on Firefox or Safari yet. Chrome, Edge, Brave, Arc, Opera — anything Chromium. Firefox is on the list if enough people email me.
Not a team tool. No sharing, no sync, no admin console. It's a personal vault. You can export-import a folder to share with a teammate, but that's manual.
Not on the Chrome Web Store. Sold as a ZIP — drag the unzipped folder into chrome://extensions with Developer Mode on. Takes 30 seconds. The reason: I'd rather not pay Google's $5 dev fee for a small experiment.
Not subscription-shaped. Pay $9 once. If a future version is significantly bigger, that one might cost more — but you keep what you bought.

Pricing, such as it is.

One time. Forever.

Includes every update. If something breaks, email me. If you don't like it within 14 days, refund.

Buy on Gumroad →

Honest math: if it saves you fifteen minutes a day, that's roughly $9 worth of your time in a week. Most people break even faster.

Questions people actually ask.

Do my prompts go to a server?

No. They're stored in chrome.storage.local, which is your browser's own storage. There's no backend. There's no analytics. You can confirm by reading the source — it's source-available to buyers.

How is this different from a Notion doc full of prompts?

Speed. The whole point is the prompt is in your chat input two keystrokes after you think of it. A Notion doc means: switch tab, search, copy, switch back, paste. That extra friction is why most prompt libraries die.

Will it work on [some new AI chat]?

Currently 13 sites are supported. If you use one I haven't added, email me — adding a new site is usually about 10 minutes of my time and ships in the next update, which you'll get for free.

Is the install really 30 seconds?

Yes. Open chrome://extensions, flip the "Developer mode" switch in the top right, drag the unzipped folder onto the page. There's a 6-line INSTALL.md included if you want it spelled out.

Can I try it first?

No free trial — I'd rather price it low and refund anyone who doesn't like it. Email me within 14 days from your receipt and I'll refund. I've never refused a refund.

Who built this?

Just me. One developer, in their spare time. If you email fezura@proton.me you're emailing me directly.