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Free creator tool
Postlume alt text generator
Describe your image and get clear alt text for screen readers and search engines: a short version, a detailed version, and a search-friendly one. Your image is never uploaded.
Free, no sign-upNo image uploadShort and clearAccessibility firstDigieh AI option
Postlume Alt Text Generator
Keyword, tone, language and more
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Free ideas are made in your browser. Digieh AI extras run on secure servers. Digieh does not save what you type.
How to use it in three steps
1
Describe your image
Say what is in it: the subject, the action, the place and any text.
2
Add a keyword
Optional. It goes into the SEO version naturally.
3
Paste it as alt text
Use it on your website, Instagram, Facebook, X, LinkedIn or Pinterest.
Why Postlume is different
Alt text lets blind and low-vision people know what is in an image, and helps search engines understand it. Postlume keeps it short and factual, never starts with “image of”, and only describes what you tell it, because it never sees or uploads your picture.
Read the full guide. Simple Rules for Writing Alt Text That Helps
Good alt text
| Platform or part | What works |
|---|---|
| Length | A few words or a short sentence, as accessibility experts advise |
| Start | Describe the content directly, not “Image of” |
| Content | Subject, action, setting and any important text |
| Keywords | Only when they fit naturally |
| Decorative images | Need no alt text at all |
Tips for the best result
Say what matters
Describe the part of the image that matters for the page.
Include text in images
If the image has words, put them in the alt text.
Where to add it
Instagram: Advanced settings. X and Facebook: tap the image before posting.
Frequently asked questions
Is the alt text generator free?
Yes. The free alt text is always free with no sign-up. Digieh AI alt text uses 1 credit per run.
Is my image uploaded?
No. You describe the image in words. Postlume never asks for or uploads your picture.
How long should alt text be?
Usually a few words or a short sentence. Say what matters about the image and stop there.
Does alt text help SEO?
Yes. It helps search engines understand your images, and it makes your site accessible.
Is alt text the same as a caption?
No. A caption is for everyone to read. Alt text describes the image for people who cannot see it.
Does Digieh save what I type?
No. Digieh does not save your text.
How can we make the Alt Text Generator better?
Something not working the way you hoped? Tell us. We read every note.