Alta

Web· paid plans from $2.42/mo

Freedom report

Two barsScore 6.3

Alta is ranked #18 of 27 in AI alt text generators on Freedom251. It runs on Web. There is a free plan. Paid plans start at $2.42/mo.

Alta plans and pricing

Free Free $0 5 images/day · unlimited page scans · 3 styles · 13 languages · no signup alttext-ai.com · 9 Oct 2026

Pro $29/yr $29/year Unlimited generations · bulk upload (50 at once) · CSV export · commercial use · support alttext-ai.com · 9 Oct 2026

What it does: Alta generates screen-reader-ready alt text from uploaded images and offers a checker that scans a page for alt text issues.
Charts and infographics: For charts and infographics, Alta can return short alt text, a long description, and an HTML data table.
Context-aware output: Users can provide page context so Alta can describe an image according to its function on the page.
Uncertain results: Alta says it flags labels or values it cannot read reliably instead of guessing, and can identify images that appear decorative.
Image input limits: The upload accepts PNG, JPEG, WebP, and GIF images up to 4 MB each.
Accessibility output: Alta says its alt text is kept under 125 characters and follows WCAG 2.2 SC 1.1.1; it also says human review is still needed.
Image privacy: Alta says images are processed in memory and never stored.
Shopify workflow: For Shopify, users generate alt text in Alta and paste it into each product image's ALT field, or bulk-process a catalog with Pro.
WordPress workflow: For WordPress, users paste generated alt text into an image's Alternative Text field in the media library.
Page checker: The free checker scans page HTML for missing, generic, duplicated, or overly long alt text, among other issues; generating fixes uses the daily quota or a Pro license.
Price from: $2.42/mo

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