Language and direction
Check lang, dir, charset, and other document basics.
Paste HTML to check language, image alt text, link names, color contrast, heading structure, and email table semantics.
The report focuses on resilient email rules that directly affect understanding and interaction.
Check lang, dir, charset, and other document basics.
Review alt text, empty links, generic wording, and accessible names.
Check heading order and presentation roles on layout tables.
Find low contrast, very small text, and other common readability risks.
This tool finds common code risks but cannot judge every context, reading order, or real screen-reader experience. Important email still needs human review.
Each tool works independently. Continue with the same HTML email based on what you need to handle next.
Move baseline CSS into elements while preserving responsive rules, dark mode, and Outlook conditional comments.
Preserve structure, lists, links, and image alt text in a clear, readable plain-text version.
Check Gmail clipping, Outlook CSS, dark mode, links, images, and accessibility risks.
Simulate Gmail, Outlook, and Apple Mail color changes to review contrast, buttons, and logos.
Check variables, test domains, UTM, unsubscribe content, and team publishing rules.
Check link and image URL status, redirects, DNS, TLS, and timeouts.
No. Accessibility parsing and static analysis run in this browser.
No. Automation covers only detectable rules. Formal compliance also requires human review, assistive-technology testing, and your organization’s standards.
Email commonly uses tables for layout. The role helps a screen reader treat them as visual structure rather than data tables that require cell-by-cell navigation.
Decorative images can use empty alt text. Informative or linked images need meaningful alternative text or another accessible name.
These free tools help locate code and pre-send risks. When you need to understand a message, fill in details, choose a template, and create the complete email, install the Edge or Firefox extension or continue in the full web app.