About PromptLens

A free tool for people who make images with AI.

PromptLens turns any image into a prompt you can use with AI image generators such as Midjourney, Stable Diffusion, Flux and DALL·E. Upload a picture, choose a style, and get a detailed description of its subject, lighting, colors, composition and mood in a few seconds.

We built it because writing good prompts takes practice. Seeing how an image breaks down into words is one of the fastest ways to learn, and a strong starting prompt saves time even for experienced creators.

How it works

Your image is resized in your browser and sent to a vision language model running on Cloudflare Workers AI. The model describes what it sees, and we format the result for the generator you picked. We don't keep your images.

Free to use

PromptLens is free and needs no account. Ads on the site cover the cost of running it. A small per-minute limit keeps the service fast for everyone.

Questions or ideas? Get in touch.