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AI Alt Text Generator

Generate alt text for images using OpenAI's vision API. Upload an image, enter your API key, and get a concise, WCAG-compliant alt text suggestion. Your API key is used directly from your browser and never sent to our server. Always review AI-generated text before publishing.

Why This Matters

Writing alt text manually doesn't scale — most websites have hundreds or thousands of images. AI alt text generation helps bridge this gap by producing descriptive, context-aware text alternatives. It supports 30+ languages and batch processing. Always review AI-generated content before publishing.

How to Use This Tool

  1. 1

    Enter API key

    Paste your OpenAI API key. It's used directly from your browser and never sent to our server.

  2. 2

    Choose language and detail

    Select from 30+ output languages and 3 detail levels (concise, detailed, comprehensive).

  3. 3

    Upload images

    Drag and drop or select multiple images for batch generation.

  4. 4

    Generate and review

    Click generate, then review each alt text. Copy individual results or download all as CSV.

Frequently Asked Questions

Do I need to pay for this?

You need an OpenAI account with API credits. The tool uses your own API key directly, so there's no subscription or platform fee. Each image costs approximately $0.01-0.03 depending on the detail level.

Is my API key safe?

Your API key is used directly from your browser to call OpenAI's API. It is never sent to our server, stored, or shared. The key is cleared when you close the page.

How many languages are supported?

30+ languages including English, Chinese, Spanish, French, German, Japanese, Korean, Arabic, Hindi, and more. Select your output language before generating.

Can I generate alt text for multiple images at once?

Yes. Upload multiple images by dragging them or selecting multiple files. The tool processes them sequentially and shows progress. Download all results as CSV when done.

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