This tool helps email developers check feature support before campaigns ship.

What this compatibility table is useful for

  • Preflight checks for HTML email templates
  • Identifying risky CSS before production sends
  • Comparing feature support across clients as a caniemail-style alternative

Typical workflow

  1. Paste the raw HTML from your email template
  2. Review feature support percentages
  3. Replace unsupported markup with safer fallbacks
  4. Re-test and then send QA emails