Alt Text Writer
Generate SEO-optimised alt text for any image. Improve accessibility, image SEO and Google Image rankings. Free, no signup.
Alt Text Examples
Good vs bad alt text for the same image:
Why Alt Text Matters for SEO
Alt text (alternative text) serves two purposes: accessibility and SEO. For accessibility, screen readers read alt text aloud to visually impaired users — making your content accessible to everyone. For SEO, Google cannot see images but can read alt text, using it to understand what the image shows and whether it matches the page topic. Images with optimised alt text appear in Google Image search, driving additional organic traffic.
Alt Text Best Practices
Keep alt text under 125 characters — the length most screen readers handle well. Be specific and descriptive. Include your target keyword naturally if the image is relevant to it. Do not keyword stuff. Never use “image of” or “photo of” as screen readers already announce it is an image.
Why Use This Alt Text Writer?
- 5 alt text options
- Character count badge
- Copy text or HTML
- Best pick highlighted
- 6 image types
- Keyword inclusion
- Accessibility optimised
- PDF export
- Free, no signup
How to Use This Tool
- 1Describe what is in your image
- 2Add target keyword if relevant
- 3Select image type
- 4Click Generate
- 5Copy your chosen alt text and add it to your image
Frequently Asked Questions
Alt text (alternative text) is an HTML attribute added to image tags that describes what the image shows. It is used by screen readers for accessibility and by search engines like Google to understand image content for image SEO.
Alt text should be under 125 characters — the standard limit most screen readers support. This tool shows a character count badge on every generated option and flags anything over 125 characters.
Yes, if the keyword is genuinely relevant to the image. Include it naturally — do not force it. Keyword-stuffed alt text is considered spam by Google and can hurt your rankings.
Yes, completely free. No account required. Powered by Groq AI.
What is an Alt Text Writer?
An alt text writer is a free AI tool that generates accurate, SEO-optimised alternative text for your images. You describe the image, optionally add a target keyword, and the tool produces 5 alt text options following accessibility standards and image SEO best practices.
Every image on your website should have descriptive alt text. Not only does this make your content accessible to visually impaired users — a legal requirement in many jurisdictions — but it also gives Google valuable information about your images, helping them rank in Google Image Search and reinforcing the topical relevance of your page.