Before you start
PromptMaster Pro is a Chrome extension. You’ll need Google Chrome (or another Chromium browser that supports the Chrome Web Store).
It's live on the Chrome Web Store — install it in one click, no developer mode or manual setup needed.
Install the extension
Search for PromptMaster Pro on the Chrome Web Store — or just click "Add to Chrome" on this site — and confirm the install.
- After install, click the puzzle icon in Chrome’s toolbar → pin PromptMaster Pro for quick access.
The first time you open it, a welcome screen greets you with two options: Start for Free — jump straight in on the Free plan, no signup — or Already have a plan? Activate, which takes you straight to the email field in Step 3 below. No account creation, no password — just your email.
Open the extension popup
Click the PromptMaster Pro icon in the toolbar. The Settings tab opens by default and shows:
- Your daily usage (used / remaining / total) and current plan (Free, Silver, or Golden).
- An Activate Your Plan card if you haven’t signed in yet, or a Your Plan card with your email, plan, and expiry once you have.
- Your Groq / Gemini API key (⚡ Groq recommended — 5× faster) — only shown on Silver, since Silver uses your own key.
- Your Device ID, a Prompt Style picker (Universal, Midjourney, Stable Diffusion, DALL·E, Flux, or Auto), and a Hover Button toggle.
Two more tabs: History (past prompts, with CSV export on Silver/Golden) and Open AI (one-click links to open your latest prompt in Midjourney, Stable Diffusion, and more).
Activate Pro (if you purchased a plan)
If you paid by card via Lemon Squeezy, your plan activates automatically — just check your email for confirmation. If you paid via bKash, Nagad, or Rocket (arranged over WhatsApp), wait for activation (usually within a few hours).
Either way, open the popup’s Activate Your Plan card, enter the same email you used at checkout, and click Activate.
Generate a prompt from any image
Visit any website with images (e.g. stock sites, Pinterest, Google Images).
- Right-click an image → choose the PromptMaster action to generate a prompt.
- Or use the hover button on supported layouts when it appears.
The extension sends the image to the AI backend (ours or your key, depending on plan) and returns a detailed prompt plus a NEGATIVE: line you can copy into Midjourney, DALL·E, Stable Diffusion, or Flux.
Copy, paste, and refine
Copy the generated text from the extension UI, paste it into your image tool, and adjust wording if you like. Your history is stored locally in the extension so you can revisit past prompts (depending on plan).
Bulk Generate & CSV export
On Silver and Golden plans, use Bulk Generate (BETA) to process multiple images on a page at once instead of one at a time.
Open the History tab anytime to revisit past prompts, or export your whole history as a CSV file.