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AI Alt Text Generator

Generate short, accessibility-focused alt text and an optional detailed description for images, on your device.

AI Private · runs on your device Free
Runs locally in your browser AI processing happens on your device. Your files are not uploaded for inference.
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    Why alt text matters

    Alt text lets blind and visually impaired users understand images through screen readers and is shown when an image fails to load. It also helps search engines understand your images, improving discoverability in Google Images.

    How it works

    The tool runs Florence-2, a compact vision-language model from Microsoft, in your browser. It writes a short sentence you can use as the alt attribute, plus an optional longer description for complex images.

    Edit and copy

    Edit the generated text, check its length and copy the text or a ready <img> tag.

    Good to know

    The model is large (about 260 MB) and downloads once, only after you confirm. Your images are never uploaded.

    How to use AI Alt Text Generator

    1. Upload the image that needs alt text.
    2. Confirm the model download on first use.
    3. Review the short alt text and detailed description.
    4. Edit and copy the text or the img tag.

    Why use this tool?

    Speeds up writing accessible alt text for hundreds of images and supports your image SEO.

    FAQ

    Which language is the alt text in?

    The model writes English descriptions. Translate or adapt them for pages in other languages.

    What's the ideal alt text length?

    Short sentences under about 125 characters that describe the image naturally are recommended.

    Do decorative images need alt text?

    No. Leave the alt attribute empty (alt="") for purely decorative images so screen readers skip them.

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