Accessibility Visualizer

Spec sheet

Product

Accessibility Visualizer is a browser extension that overlays accessibility information on web pages.Read 12 Oct 2026 · ymrl.github.io

Intended users

The maker describes the goal as helping people notice accessibility while coding or checking web page behavior, without first needing to inspect the accessibility tree or source code.Read 12 Oct 2026 · ymrl.github.io

Free plan

YesRead 22 Sep 2026 · ymrl.github.io

Integrations

The guide lists axe DevTools, WAVE, and Lighthouse as tools it can be used alongside.Read 12 Oct 2026 · ymrl.github.io

Privacy

The privacy policy says the extension does not collect, store, or transmit personal or browsing data and processes information locally in the browser.Read 12 Oct 2026 · github.com

Available browsers

The maker links to Chrome Web Store and Firefox Add-ons; the Firefox listing says the add-on is also available in Firefox for Android.Read 12 Oct 2026 · ymrl.github.io

Browser extension

YesRead 22 Sep 2026 · ymrl.github.io

Customization

Users can switch among presets, select which information to display, and save different settings for each domain.Read 12 Oct 2026 · ymrl.github.io

Issue detection

The extension displays warning and error messages for problematic states and states that should be used with caution.Read 12 Oct 2026 · ymrl.github.io

Live regions

It can visually show changes in live regions, including those using role=status, role=alert, role=log, aria-live, and output elements.Read 12 Oct 2026 · ymrl.github.io

Open source

The project is released under the MIT License, and its source code is publicly available.Read 12 Oct 2026 · github.com

Performance and display limits

The guide notes that some sites may slow down, frames or Shadow DOM may prevent overlays from appearing, and interactive mode may interfere with mouse operations.Read 12 Oct 2026 · ymrl.github.io

Scan scope

pageRead 22 Sep 2026 · ymrl.github.io

Settings storage

The extension may store preferences using browser storage; browser sync may synchronize them under the user's account, with the browser vendor handling that process.Read 12 Oct 2026 · github.com

Verification limit

The guide says the extension's information is supplementary and recommends checking with actual assistive technologies such as screen readers.Read 12 Oct 2026 · ymrl.github.io

Visualized information

It can display image alternative text, heading levels, form labels, table structure, lists, language attributes, and WAI-ARIA information.Read 12 Oct 2026 · ymrl.github.io

Plans and prices

Every Accessibility Visualizer plan and price →

Where Specifiction places it

• Website Accessibility Tools#106 of 1337.4