Who should use Image Alt Text Reader?

Image Alt Text Reader is a B2B product built for SEO professionals and website accessibility auditors.

Is Image Alt Text Reader free?

Yes — Image Alt Text Reader is free to use.

What platforms does Image Alt Text Reader run on?

Image Alt Text Reader runs on the web and embeddable surfaces.

Is Image Alt Text Reader still active?

Unverified. Image Alt Text Reader has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to Image Alt Text Reader?

Similar projects tracked by PulseGate include Alt Tag Viewer, SEO Image Checker, and Alt Captioner.

Who develops Image Alt Text Reader?

Image Alt Text Reader is developed by FlorianD.

How long has Image Alt Text Reader been around?

Image Alt Text Reader first shipped in 2025.

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Image Alt Text Reader

Name: Image Alt Text Reader
Author: FlorianD

mozilla.orgImage SEO & alt text

Image Alt Text Reader is a Firefox extension for auditing image alt text on webpages. It displays descriptions on hover, highlights images with missing alt text, and provides a full-page overlay view for SEO and accessibility reviews.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

Image Alt Text Reader sits in PulseGate's Image SEO & alt text category. It focuses on auditing image alt text and finding missing descriptions without inspecting webpage elements manually. It is built as a B2B product for SEO professionals and website accessibility auditors. It is available for free. It ships for the web and embeddable surfaces.

It is developed by FlorianD, and it first shipped in 2025. Among its 5 catalogued features are alt text on hover, missing alt highlights, and full-page overlay. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Alt text on hover
Missing alt highlights
Full-page overlay
View toggle
Website-wide auditing

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed14 Sep · 18:28 UTC
Image Alt Text Reader verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Image Alt Text Reader

What is Image Alt Text Reader?: Image Alt Text Reader focuses on auditing image alt text and finding missing descriptions without inspecting webpage elements manually. It is catalogued under Image SEO & alt text on PulseGate.
Who should use Image Alt Text Reader?: Image Alt Text Reader is a B2B product built for SEO professionals and website accessibility auditors.
Is Image Alt Text Reader free?: Yes — Image Alt Text Reader is free to use.
What platforms does Image Alt Text Reader run on?: Image Alt Text Reader runs on the web and embeddable surfaces.
Is Image Alt Text Reader still active?: Unverified. Image Alt Text Reader has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Image Alt Text Reader?: Similar projects tracked by PulseGate include Alt Tag Viewer, SEO Image Checker, and Alt Captioner.Alt Tag Viewer SEO Image Checker Alt Captioner
Who develops Image Alt Text Reader?: Image Alt Text Reader is developed by FlorianD.
How long has Image Alt Text Reader been around?: Image Alt Text Reader first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Built for: SEO professionals and website accessibility auditors
Model: B2B
Solves: Auditing image alt text and finding missing descriptions without inspecting webpage elements manually.

Registered as

Firefox Add-ons: image-alt-text-reader

Developer

FlorianD

Index record

Indexed: 14 Sep 2026
Lifecycle: Alive
Last seen: 14 Sep 2026

Identity audit (13)

Slug: image-alt-text-reader-mozilla-org
Lifecycle state recorded: 14 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 14 Sept 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 14 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/image-alt-text-reader

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