Outlook Alt Text icon

Outlook Alt Text

by James Martin · Accessibility
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Auto-suggest alt text for images pasted into Outlook web using AI

Users
3
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#338K
#262K among extensions
Version
1.0.0
updated 25 Jan 2026

Users

monthly, 9 months
023Jan 2026Jun 2026Oct 2026
Latest, 15 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months
001Jan 2026Jun 2026Oct 2026
Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Outlook Alt Text

Outlook Alt Text automatically suggests accessibility-friendly alt text for images you paste into Outlook web emails using Claude AI. FEATURES • Detects images pasted into Outlook compose • AI-generated alt text using Claude vision models • Smart model selection: Haiku for simple images, Sonnet for complex ones • Edit suggestions before applying • Skip option if you don't want alt text • Privacy-focused: no tracking or data retention HOW IT WORKS 1. Paste an image into an Outlook email 2. Extension analyzes the image with Claude AI 3. Review and edit the suggested alt text 4. Click "Apply" to add it to your image SETUP REQUIRED • Get a Claude API key from console.anthropic.com (free tier available) • Click the extension icon and enter your API key • Start pasting images in Outlook! COST OPTIMIZATION Uses conditional model selection to minimize API costs: - Simple images use Claude Haiku (~$0.001-0.003 per image) - Complex images use Claude Sonnet for accuracy (~$0.01-0.05 per image) PRIVACY & SECURITY • Your API key is stored locally in Chrome's secure storage • Images are sent only to Claude API for analysis • No data stored on external servers • No tracking or analytics SUPPORTED OUTLOOK DOMAINS • outlook.office.com • outlook.office365.com • outlook.live.com Open source on GitHub: https://github.com/JCMexplains/outlook-alt-text

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days+1+50.0%00.00
6 months+2+200.0%00.00

Version history

1 versions recorded
1.0.025 Jan 2026

Details

Category
Accessibility
First seen
25 Jan 2026
Size
26 KB
Languages
en-US
Pricing
Free
Privacy policy
github.com
Extension ID
npnlijdmgchjklkelmpoejkakopeicfk

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
storage
Site access
https://outlook.office.com/*https://outlook.office365.com/*https://outlook.live.com/*

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