FAQ
Frequently asked questions
The questions people actually ask: how Promptify reads an image, what happens to your uploads, and how to get better prompts out of it.
What is Promptify?
Promptify is a free tool that reads a visual reference — a photo, a live web page, or a poster or infographic — and writes back a structured prompt describing it. You start from something you already like instead of a blank prompt box, then edit the description until it matches what you're actually making.
How does image-to-prompt generation work?
Your image is resized in the browser and sent once to a vision model, with instructions to write a working brief rather than a caption. It reads what's plainly there — subject, framing, palette, texture, sharpness — and infers what the evidence implies, like light direction from the edge of a shadow, or rough focal length from how the perspective behaves. That reading gets formatted into a prompt you can paste straight into a generator.
What images can I upload?
Anything your browser can open: JPEG, PNG, WebP, and HEIC where it's supported. The posters and infographics tool takes PDFs as well. No account, no per-session limit, and big files are shrunk on your machine before they go anywhere.
What makes a good reference image?
One clear idea, light you can read, and enough resolution to see it. A single subject with an obvious light direction beats a collage every time. Heavy filters, watermarked stock previews and screenshots of screenshots all muddy the reading. If only one part of the image matters to you, crop to it first.
Can Promptify analyze website designs?
Yes. Paste a public URL and the website theme grab fetches the page, reads the markup and stylesheets including CSS custom properties, and renders it so the section order matches what people actually see. You get hex values, the type scale, spacing and component conventions, and the sections in order. Ask for layout only, theme only, or both.
Can Promptify analyze posters?
Yes — poster, flyer, editorial spread or data graphic, as an image or a PDF. You get grid and margins, what the eye reads first, typography, colour relationships and graphic treatment. One tip: a flat, straight-on file reads far better than a photo of a poster on a wall, where perspective and patchy light throw the analysis off.
Can I edit generated prompts?
Please do. It's a first draft built from evidence, not a finished brief. Cut the clauses describing things you don't want, drop your own subject in, and tighten anything that sounds hedged. Changing one clause at a time is also the fastest way to learn which words actually move the result.
Can I use generated prompts with other AI tools?
Yes. It's plain description rather than tool-specific syntax, so it carries over to Midjourney, DALL·E, Stable Diffusion, Flux, Leonardo and most other generators, plus AI site and design builders. Add your own flags — aspect ratio, seed, style settings — wherever a tool expects them.
Why might two prompts generated from similar images differ?
Because words are a lossy version of a picture. Two images that look alike to you can differ in shadow behaviour, crop, texture or colour spread, and the model weighs those differences differently. Generation is probabilistic too, so the same file twice can emphasise different things. When the two readings disagree, that's usually a hint about which detail you care about.
How can I improve the generated result?
Crop tight to the part you care about, use a clean file, and pick references that do one thing well. Afterwards, strip out anything irrelevant, make the subject specific, hold to a single visual style, and watch for clauses that fight each other — a wide shot with a blurred background, or soft light with hard shadows.
Does Promptify store uploaded images?
No. Files are resized in your browser, sent once to the analysis endpoint, and dropped as soon as the description comes back. Nothing is written to a database, nothing sits in storage, and nothing is used to train models.
How does Promptify handle privacy?
There's no account and we don't ask for personal details. Ordinary server logs — IP address, timestamp — may be kept for security and abuse prevention. If advertising is switched on, third-party cookies may be set, subject to your choice in the cookie banner. The Privacy Policy has the specifics.
Is Promptify free?
Yes, free. No account, no sign-up, no card.
What should I do if prompt generation fails?
Try again first. Most failures are a blip in the network or an upstream timeout. If it keeps failing, look at the file: huge images, unusual formats and password-protected PDFs are the usual suspects. With the website tool, pages that block automated requests or render entirely in the browser can come back with almost nothing to work from, so try another page on the same site. If one file or URL fails every time, send it through the contact page and we'll take a look.
Still stuck?
Read the image-to-prompt guide for what the analysis can and cannot infer, or get in touch with the file or URL that gave you trouble.