Free Bulk Alt Text Generator — Online AI Tool for Images.
Generate SEO-friendly, WCAG-compliant alt text for hundreds of images at once. Built for product catalogs, publishing, and content archives — export CSV, JSON, or plaintext.
The Cost of Missing Metadata
Accessibility Failure
Websites failing basic WCAG standards due to missing or inadequate image descriptions.
SEO Penalty
Reduced organic image search traffic for unoptimized product catalogs and editorial libraries.
Manual Labor
Average time spent annually per content manager writing alt text manually.
Engineered for Specific Domains
Product Catalogs
Extract color, material, style, and positioning for thousands of SKUs. Generate SEO-aware descriptions that still read naturally for screen reader users.
Digital Publishing
Context-aware descriptions for editorial photography and infographics.
Archival & Museum
Detailed transcription of historical documents and artifact imagery.
Custom Context
Keywords, image hints, brand voice, and language controls.
Frequently asked questions
Everything you need to know about generating bulk alt text online with AI.
What is a bulk alt text generator?
A bulk alt text generator uses AI to write descriptive, accessible alt text for many images at once, instead of writing each one by hand. AltText Bulk lets you upload a batch of images and get SEO-friendly, WCAG-compliant descriptions in seconds.
Is the bulk alt text generator free?
Yes. Every account gets 10 free image generations with no credit card required. Paid plans unlock larger batches, exports, and saved history.
How does the AI generate alt text?
AltText Bulk uses a vision language model to analyze each image and produce a concise, context-aware description. You can guide it with target keywords, image type (product, lifestyle, infographic, hero), brand voice, and output language.
Is the generated alt text WCAG compliant?
The output follows WCAG 2.1 guidance for image descriptions: it is concise, describes the visual content meaningfully, avoids redundant phrases like "image of", and surfaces the information a screen reader user actually needs.
Can I export the alt text in bulk?
Yes. Results can be exported as CSV, JSON, or plaintext so you can drop them straight into Shopify, WordPress, Webflow, a CMS, or your own database.
Does alt text help SEO?
Yes. Alt text gives search engines and Google Images a textual signal for what each image contains, which improves image search ranking and overall on-page SEO. Accessible alt text also reduces bounce for assistive-technology users.
Ready to automate your accessibility?
Create a free account to upload images, generate alt text, save history, and use your 10-image quota.