Prompt for Image Alt Text (Free Copy-Paste Prompt)

Copy-ready prompt

Write alt text for an image showing [describe the image] on a page about [topic].
Rules:
- Describe the image accurately and concisely (under ~125 characters).
- Include the relevant keyword only if it fits naturally.
- Don't start with 'image of' or 'picture of'.
- Prioritize accessibility over keyword stuffing.
Give 2 options.

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Why this prompt works

Alt text serves both accessibility and image SEO, but keyword-stuffed alt text fails at both. This prompt keeps it accurate and concise, includes keywords only when natural, and prioritizes screen-reader users — which is exactly what Google rewards.

How to customize it

Describe what's actually in the image, accurately.
Skip 'image of'; screen readers already announce it's an image.
Only add the keyword if it genuinely fits.

Tip: replace the parts in [square brackets] with your own details before you send. The more specific you are — audience, tone, goal, constraints — the better the AI output.