Alt Text Generator

Generate SEO-friendly alt text descriptions for your images automatically. Improve accessibility and search rankings.

SingleBatch Upload

Drop a file here or click to upload

AI Image Description Generator

Generate clear image descriptions with AI for accessibility, image SEO, captions, asset metadata, and content libraries.

Example outputs

Input image
Generated Text
“The image shows a pair of black Xiaomi Mi True Wireless Earbuds sitting on top of a red surface. The earbuds have a sleek, modern design with a glossy finish and a comfortable fit. The box they come in is also black and has a handle on the top for easy carrying.”

Use this alt text in your HTML for better SEO and accessibility.

How It Works

1
Upload Your Image

Drag and drop or select any image you need alt text for. We support JPG, PNG, GIF, WebP, BMP, TIFF, HEIC, HEIF, AVIF formats up to 20MB.

2
Choose Model & Detail Level

Select an AI model (Florence, Gemini Flash, Qwen) and detail level: Short (125 chars), Detailed (200 chars), or Full (300 chars).

3
Generate & Copy

AI analyzes your image and generates SEO-friendly alt text instantly. Copy to clipboard or view ready-to-use HTML code.

Alt Text Generator Features

Multiple AI Models

Florence (fastest), Gemini Flash (balanced), Gemini 3 Pro (premium), Qwen VL (cost-effective).

3 Detail Levels

Short (125 chars) for simple images, Detailed (200 chars) for context, Full (300 chars) when accessibility tools need every detail.

SEO Optimized

Generated alt text is crafted to improve search engine visibility and image rankings.

WCAG Compliant

Create accessibility-compliant image descriptions for screen readers and assistive technologies.

Instant Generation

Get accurate alt text in 1-3 seconds using advanced AI image analysis.

HTML Ready Output

Copy pre-formatted HTML code with your alt text ready to paste into your website.

Batch Processing

Need to process hundreds of images? Use our Batch Alt Text tool for bulk generation.

Starting at 1 credit

The starting credit cost is 1 credit. Larger source images cost more according to source megapixels; the exact quote appears before processing.

Technical Specifications

5+ options

Short, Detailed, Full

125-300 chars

JPG, PNG, GIF, WebP, BMP, TIFF, HEIC, HEIF, AVIF

20 MB

1-3 seconds

Starts at 1 credit; size-adjusted

Available

Compare AI Models

Choose the right model for your alt text needs

Generate alt text for any platform

SEO-optimized descriptions for all your content
WordPress
Shopify
Squarespace
Wix
Amazon
Etsy
Custom CMS
Sirv CDN

Perfect For

E-commerce Product Images

Generate descriptive alt text for product photos to improve SEO and help visually impaired shoppers understand your products.

Blog and Article Images

Add meaningful descriptions to blog images that help search engines understand your content and improve discoverability.

Website Accessibility

Make your website WCAG compliant by adding proper alt text to all images for screen reader users.

Social Media Content

Create descriptive text for social media images to reach wider audiences and improve platform accessibility features.

Stock Photography

Generate accurate descriptions for stock photo libraries to improve searchability and licensing metadata.

Digital Archives

Add descriptive metadata to image archives for better organization, searchability, and accessibility.

Frequently Asked Questions

Alt text (alternative text) is a description of an image that appears when the image cannot be displayed and is read by screen readers. It's crucial for web accessibility (WCAG compliance) and helps search engines understand image content, improving your SEO rankings.

Related Tools

Batch Alt Text

Process hundreds of images at once with bulk export.

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Product Descriptions

Generate full product descriptions from images.

Alt Text Generation Use Cases

Explore specialized workflows for your specific needs

Accessibility

Create descriptions for screen readers

SEO Optimization

Improve image SEO with descriptions

Product Descriptions

Generate detailed product image descriptions

Social Media Alt Text

Create alt text for social media images

Educational Content

Describe educational images and diagrams

Medical Images

Generate descriptions for healthcare imagery

View all 12 use cases →

Industries Using Alt Text Generation

See how different industries leverage this tool

E-commerce39 toolsMarketing34 toolsEducation10 toolsHealthcare4 tools

Compare Alt Text Generation to other tools

Side-by-side breakdowns: features, speed, quality, and use cases.

Alt Text Generation vs Product DescriptionCompare features and pricing

Sirv Alt Text Generation vs alternatives

See how Alt Text Generation compares to other tools in the category.

Sirv vs Cloudinary