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SPECIFICTION
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Sa11y

sa11y.netlify.app

Free plan WebBrowser extension

Spec sheet

Purpose
Sa11y visually highlights accessibility and usability content issues on a page and provides tooltips explaining how to fix them.Read 12 Oct 2026 · sa11y.netlify.app
Audience
Sa11y is designed for content authors and also provides customizable tools for developers and accessibility experts.Read 12 Oct 2026 · sa11y.netlify.app
Free plan
YesRead 22 Sep 2026 · sa11y.netlify.app
Integrations
Sa11y's official WordPress plugin is optimized for Pressbooks, and the maker documents a Drupal module maintained by Mark Conroy rather than Toronto Metropolitan University.Read 12 Oct 2026 · sa11y.netlify.app
Privacy
The maker says Sa11y collects no personal data and uses browser web storage for optional rulesets and enabled features.Read 12 Oct 2026 · sa11y.netlify.app
Support
The maker invites users to contact Adam Chaboryk by email or submit an issue on GitHub to report accessibility barriers or suggestions.Read 12 Oct 2026 · sa11y.netlify.app
Headquarters
Toronto, CanadaRead 28 Sep 2026 · sa11y.netlify.app
Founded
2020Read 28 Sep 2026 · sa11y.netlify.app
Browser extension
NoRead 22 Sep 2026 · sa11y.netlify.app
Browser use
Sa11y is available as a bookmarklet for desktop browsers, though security policies can prevent it from working on some websites.Read 12 Oct 2026 · sa11y.netlify.app
Checks
Sa11y includes over 80 checks for accessibility quality.Read 12 Oct 2026 · sa11y.netlify.app
Customization
Developers can choose areas to check, exclude page sections, customize checks, and add custom checks.Read 12 Oct 2026 · sa11y.netlify.app
Installation
The JavaScript plugin can be installed from GitHub or npm and added to a website with its stylesheet, language file, and script.Read 12 Oct 2026 · sa11y.netlify.app
Limitations
Sa11y cannot check accessibility issues within PDFs or confirm whether video captions are accurate.Read 12 Oct 2026 · sa11y.netlify.app
Maintainer
Sa11y is led and maintained by Adam Chaboryk, an IT Accessibility Specialist at Toronto Metropolitan University in Toronto, Canada.Read 12 Oct 2026 · sa11y.netlify.app
Page features
The tool can show a page outline, review images and alt text, estimate readability, export results to CSV or HTML, and simulate colour vision deficiencies.Read 12 Oct 2026 · sa11y.netlify.app
Scan scope
pageRead 22 Sep 2026 · sa11y.netlify.app
Security and processing
The experimental language detection feature performs analysis locally on the user's machine and does not send page content to a cloud server or external third party.Read 12 Oct 2026 · sa11y.netlify.app
WCAG version
wcag 2.1Read 22 Sep 2026 · sa11y.netlify.app

Plans and prices

Free Free Open-source JavaScript accessibility checker · More than 80 accessibility checks · Runs in the browser Read 22 Sep 2026 · sa11y.netlify.app
Free and open source Free 100% free · open source Read 12 Oct 2026 · sa11y.netlify.app

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