Free Tool

Alt Text
Generator

Write clear, accessible image descriptions for Instagram, LinkedIn, and any platform that supports alt text. Answer the prompts below and copy the result.

Describe Your Image
Generated Alt Text

Fill in the prompts to generate alt text...

0 / 125 characters

Quick Rules

  • Keep it under 125 characters when possible
  • Don't start with "image of" or "photo of"
  • Be specific: "golden retriever on a beach" beats "dog outside"
  • Describe function for UI images (buttons, icons, charts)
Why It Matters

Better alt text means better reach and better accessibility.

Most social media posts skip alt text entirely. That means screen reader users see nothing, and search engines have less signal to work with. Writing even a basic description puts your content ahead of most posts on the platform.

This alt text generator helps you write descriptions quickly by guiding you through what to include: the subject, the action, the setting, and the mood. Fill in what applies, and copy a clean description ready for Instagram, LinkedIn, or any platform that supports image alt text.

Tip: Instagram, LinkedIn, X, and Facebook all support alt text on images. Add it every time you post.

1. Describe

Answer the guided prompts about what your image shows.

2. Review

See the assembled alt text and check the character count.

3. Copy

Paste the alt text into Instagram, LinkedIn, or your CMS.

Alt text generator FAQ

What is alt text?

Alt text (alternative text) is a short written description of an image. Screen readers use it to describe images to visually impaired users, and search engines use it to understand image content. Good alt text improves both accessibility and SEO.

How long should alt text be?

Keep alt text under 125 characters when possible. Screen readers may truncate longer descriptions. Focus on the most important detail first, then add context if space allows.

What makes good alt text?

Good alt text is specific, concise, and describes what matters in the image. Avoid starting with 'image of' or 'picture of' since screen readers already announce it as an image. Describe the content and function, not the file name.

Does alt text help with SEO?

Yes. Search engines cannot see images directly, so they rely on alt text to understand what an image shows. Well-written alt text helps images appear in Google Image Search and strengthens the relevance of the page the image is on.

Do I need an account to use this alt text generator?

No. The tool runs free in the browser. Describe your image, get guided suggestions, and copy the result without signing up.