Surpasso
All free tools
Accessibility

AI Alt Text Generator

Upload an image and get three useful alt-text options without keyword stuffing or invented details.

Free to use No sign-inChoose the wording that fits
Want Surpasso to keep doing this?Surpasso creates alt text with the content, keeps it in review, and publishes it.
Create and publish with Surpasso

Upload and add context

Context helps explain the role the image plays on the page.

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The image is resized in your browser before it is sent to the model. Surpasso does not store the image or result.

Ready for an image

You will get descriptive, concise, and page-aware options, plus a note when empty alt may be more appropriate.

About this tool

Generate three restrained alt-text candidates from an image and its page context. The options favor accessibility and accurate function over keyword stuffing, decorative prose, or invented details.

What you get

A clear, usable result

  • A descriptive option for meaningful images whose visual content matters to the page.
  • A concise option that removes surrounding context already present in nearby text.
  • A context-aware option plus a reminder when an empty alt attribute may be more appropriate.
How to read the result

Descriptive

Use when the image itself communicates information not already available in nearby copy. Keep only details relevant to the page purpose.

Concise

Use when surrounding text already establishes context and the alt only needs to identify the remaining meaningful visual information.

Empty alt

Use alt="" for a purely decorative image so assistive technology can skip it. Do not omit the attribute, which can expose the filename instead.

Limitations and sources
  • The model can misread small text, unfamiliar products, people, places, charts, or context not visible in the image.
  • A human should choose and edit the candidate based on the image’s purpose, not copy every suggestion automatically.
  • Complex diagrams and data visualizations may need a nearby long description in addition to short alt text.
W3C alt decision tree W3C image concepts
Questions about this tool

Should alt text include SEO keywords?

Only when the wording naturally and accurately describes the image. Repetition added for ranking rather than understanding makes the experience worse.

Should I start with “image of” or “picture of”?

Usually no, because assistive technology already announces an image. Include the medium only when it matters, such as a diagram, screenshot, painting, or photograph.