
Image Alt Text Reader by FlorianD
Instantly view and audit image alt text on any webpage. Highlights missing alt text, shows descriptions on hover, and offers full-page overlay view. Essential for SEO professionals seeking to improve image optimization quickly.
You'll need Firefox to use this extension
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About this extension
An SEO tool for quickly auditing image alt text across any webpage:
• Instantly see alt text when hovering over images
• Clearly highlights missing alt text in orange - quickly spot SEO gaps
• Simple toggle between hover tooltip and full-page overlay views
• Streamlines image SEO audits without leaving the page
Stop wasting time inspecting page elements or running complex SEO tools just to check image descriptions. Image Alt Text Reader provides immediate visual feedback on alt text implementation, helping you identify and fix missing content. Lightweight, easy to use.
• Instantly see alt text when hovering over images
• Clearly highlights missing alt text in orange - quickly spot SEO gaps
• Simple toggle between hover tooltip and full-page overlay views
• Streamlines image SEO audits without leaving the page
Stop wasting time inspecting page elements or running complex SEO tools just to check image descriptions. Image Alt Text Reader provides immediate visual feedback on alt text implementation, helping you identify and fix missing content. Lightweight, easy to use.
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Permissions and dataLearn more
Required permissions:
- Access browser tabs
- Access your data for all websites
More information
- Add-on Links
- Version
- 1.1
- Size
- 33.24 KB
- Last updated
- 7 hours ago (Jun 27, 2025)
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- License
- All Rights Reserved
- Version History
- Tags
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Release notes for 1.1
Version 1.1: Smarter Overlays & Performance Boost
This update addresses a key performance and usability issue with the "Show alt text overlay" feature.
Key Changes:
The "Show tooltip on hover" feature remains a global setting that will persist across all your tabs as before.
This update addresses a key performance and usability issue with the "Show alt text overlay" feature.
Key Changes:
Overlay is Now Tab-Specific: Enabling the alt text overlay will now only affect your current, active tab. It will no longer automatically activate across all other tabs, providing a more intuitive and predictable experience.
Improved Performance: By limiting the overlay logic to only the tab where it's needed, the extension now uses significantly fewer resources. This prevents browser slowdowns, especially when you have many tabs open.
Smarter Behavior: The overlay for a tab will automatically deactivate when the tab is closed or refreshed. To re-enable it, simply open the popup on that tab and toggle the switch again.
The "Show tooltip on hover" feature remains a global setting that will persist across all your tabs as before.
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