APIMaster.ai

Free Image to Prompt Generator

Turn a reference image into a detailed, editable AI prompt. Describe composition, lighting, textures and style for GPT Image, Flux or other image models.

Free to try · No sign-up required

Start with a picture, keep the details that matter, and get a prompt you can adapt to another image model. Add instructions to focus on the subject, camera, palette or product details.

JPEG, PNG or WebP · Up to 5 MB. Your image is sent for AI analysis only when you generate a prompt.

0/4000

Up to 10 free requests per day per IP, shared across the three prompt tools. Availability also depends on the daily service budget.

We do not save images or prompt text in this tool's database. Inputs are sent to the AI provider for generation and are subject to its processing policy. Do not upload confidential material.

Your prompt

Your generated prompt will appear here. Edit the text, copy it, then use it with your chosen model.

How it works

  1. Choose a reference image you have permission to use.
  2. Choose the target model and language; add any details to preserve or change.
  3. Generate, review and copy the prompt. Open a model page to create your own image.

Questions & answers

Can this recover the original image prompt?

No. It writes a new description from visible image content; it cannot recover the original prompt, seed or hidden generation settings. Matching output is not guaranteed.

Which image models can use the prompt?

The output is editable natural language for GPT Image, Flux and other image generators. Model-specific controls vary, so review the prompt before using it.

Put your result to work

Compare AI model prices on APIMaster, create an account, and generate with your chosen model. Model generation uses your account balance; the prompt tool itself is free.

Create an accountExplore models & pricesGet an API key

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