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Image Caption Generator

Generate descriptive captions for images

100% private. Your files and inputs never leave your device — everything runs locally in your browser.

AI Processing

Generate descriptive alt text and captions for any image.

Drop files here or click to browse

Accepts: image/jpeg, image/png, image/webp

Max 10.0 MB per file

Actions

Upload an image to generate an AI-powered descriptive caption.

Upload a file above to enable processing.

Features

  • AI description
  • Copy to clipboard
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How to Use Image Caption Generator

Generate descriptive captions for images. No signup, no uploads, no watermarks.

  1. 1

    Add the file or image you want to process.

  2. 2

    Choose the AI model or options available for this tool.

  3. 3

    Start processing — the AI runs in your browser, so nothing is uploaded.

  4. 4

    Download the output once it's ready.

Why choose Image Caption Generator?

  • No uploads — your files never leave your device.
  • Free forever with no signup, no watermarks, and no limits.
  • Works on any device with a modern browser — no installs.
  • Fast, private, and built for getting the job done in seconds.
Try Caption for free

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