vision ai — image accessibility engine

Alt textfor everyimage.

Accessible, SEO-ready alt text for thousands of images at once — dashboard, CSV, page scan, or a single API call. Written by AI in 30 languages.

Start free Explore the API

26 free credits — no credit card required

altgen — every pixel deserves words

POST /v1/images/generate201 Created

Request

{
  "url": "https://cdn.store.com/sneaker.jpg",
  "preset": "ecommerce",
  "style": "concise",
  "languages": ["en", "de", "tr"]
}

Response

{
  "altText": "Burgundy low-top sneaker with a white sole, floating on a yellow background",
  "translations": { "de": "…", "tr": "…" },
  "status": "completed",
  "creditsCost": 1
}

images in — alt text out

sneaker-burgundy-01.jpg Sunlit living room with leather sofa and plants

loft-living-04.jpg Margherita pizza with fresh basil leaves

pizza-margherita.jpg Woman in a beige coat on a city street

coat-camel-11.jpg Infinity pool overlooking the sea at a resort

pool-bay-09.jpg Abstract painting with bold colorful strokes

art-abstract-23.jpg Burgundy sneaker floating on a yellow background

sneaker-burgundy-01.jpg Sunlit living room with leather sofa and plants

loft-living-04.jpg Margherita pizza with fresh basil leaves

pizza-margherita.jpg Woman in a beige coat on a city street

coat-camel-11.jpg Infinity pool overlooking the sea at a resort

pool-bay-09.jpg Abstract painting with bold colorful strokes

art-abstract-23.jpg

✓"Burgundy sneaker floating on a yellow background"✓"Sunlit living room with leather sofa and plants"✓"Margherita pizza with fresh basil leaves"✓"Woman in a beige coat on a city street"✓"Infinity pool overlooking the sea at a resort"✓"Abstract painting with bold colorful strokes"✓"Burgundy sneaker floating on a yellow background"✓"Sunlit living room with leather sofa and plants"✓"Margherita pizza with fresh basil leaves"✓"Woman in a beige coat on a city street"✓"Infinity pool overlooking the sea at a resort"✓"Abstract painting with bold colorful strokes"

EnglishTurkishGermanFrenchSpanishItalianPortugueseDutchRussianChinese (Simplified)Chinese (Traditional)JapaneseKoreanArabicHindiBengaliPolishUkrainianRomanianCzechSwedishNorwegianDanishFinnishGreekHungarianThaiVietnameseIndonesianMalayEnglishTurkishGermanFrenchSpanishItalianPortugueseDutchRussianChinese (Simplified)Chinese (Traditional)JapaneseKoreanArabicHindiBengaliPolishUkrainianRomanianCzechSwedishNorwegianDanishFinnishGreekHungarianThaiVietnameseIndonesianMalay

01 — how it works

Folder in.
Accessible out.

Three steps between you and alt text for your entire image library.

step 01

Bring your images

Upload files, paste URLs, import a CSV, or point the scraper at any page — it finds every image for you.

step 02

AI writes the alt text

A vision model describes each image with your chosen industry preset, writing style, and target languages.

step 03

Ship it anywhere

Review and edit in the dashboard, export to CSV, or receive results straight into your stack via webhooks.

batch #4821 — catalog.csv

1,032 / 1,284

✓

sneaker-burgundy-01.jpg

"Burgundy sneaker with white sole, floating on yellow"

✓

vase-amber-32.jpg

"Amber glass vase holding dried pampas grass"

✓

desk-walnut-07.jpg

"Walnut standing desk with dual monitors"

✓

lamp-brass-19.jpg

"Brass arc floor lamp over a reading chair"

⠋

sofa-velvet-12.jpg

"Emerald velvet three-seat sofa with brass legs"

languages: en · de · trpreset: ecommerceeta: ~9s

02 — one image, four voices

Same image.
Your voice.

Scroll through the four writing styles — the same sneaker, described four different ways.

Burgundy low-top sneaker with a white sole, floating on a yellow background

sneaker-burgundy-01.jpgstyle: Terse

01 / 04

Terse

Minimal keywords, no full sentences

"burgundy sneaker, white sole, yellow background"

02 / 04

Concise

Brief but descriptive, 1-2 sentences

"Burgundy low-top sneaker with a white sole, floating on a yellow background."

03 / 04

Direct

Clear and factual, moderate detail

"Burgundy canvas low-top sneaker with a white rubber sole and matching laces, floating in side profile against a bright yellow background."

04 / 04

Elaborated

Rich detail, full context and description

"A burgundy canvas low-top sneaker with a crisp white rubber sole, suspended mid-air against a vivid mustard-yellow backdrop. Soft studio light catches the side stripe and waxed laces, casting a gentle shadow beneath the shoe."

03 — features

Built for scale.
Tuned for your domain.

Everything you need to make accessibility and image SEO a batch job, not a backlog.

5,000

images per batch

languages

industry presets

writing styles

csv import · page scraper · automatic retries · webhooks · api keys

04 — // for developers

Alt text as an API call

Plug generation into your CMS, build pipeline, or upload flow. Send an image URL, get back alt text and translations — synchronously or via webhook.

REST API

One endpoint to generate, list, update, and retry. Typed responses, predictable errors.

API keys

Scoped keys per workspace with optional expiry — create and revoke them from the dashboard.

Webhooks

Subscribe to generation events and get results pushed to your endpoint, with delivery history.

Get your API key

generate.sh● ready

curl -X POST https://api.altgen.io/v1/images/generate \
  -H "Authorization: Bearer $ALTGEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://cdn.store.com/sneaker.jpg",
    "preset": "ecommerce",
    "style": "concise",
    "languages": ["en", "de", "tr"]
  }'

05 — pricing

Simple, credit-based pricing

1credit=1image

Start free and upgrade when your library grows.

Free

For individuals getting started

$0forever

26 credits / month

All languages
Bulk upload
CSV import
Page scraper
API access
Webhooks
Image library

Start free

Pro

For growing teams that need more power

$29/month

All languages
Bulk upload
CSV import
Page scraper
API access
Webhooks
Image library

Get started

Need More?

For organizations that need everything

Custom

pricing for your needs

Everything in Free & Pro
Higher volume limits
Custom integrations
Dedicated support
Custom SLA
SSO & team management
White-label options

06 — start now

Every image.
Accessible. Today.

Your first 26 images are on us. No credit card, no setup — just paste a URL and watch the alt text appear.

Start generating free Sign in