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
Latest, 15 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 months
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