Free ToolConverter

Markdown to Email-Safe HTML

Most markdown-to-HTML converters produce CSS that breaks in Outlook desktop. This one produces table-based, inline-styled, Outlook-tested HTML.

Markdown input

Email-safe HTML (inline-styled, table-based)

<table cellpadding="0" cellspacing="0" border="0" width="100%"><tr><td style="padding:24px;">
<h1 style='margin:0 0 12px 0; font-family:Arial,sans-serif; font-size:22px; color:#111;'>Hi Sam</h1>
<p style='margin:0 0 14px 0; font-family:Arial,sans-serif; font-size:14px; line-height:1.5; color:#222;'>Thanks for the demo last week. Quick recap:</p>
<ul style='margin:0 0 16px 0; padding-left:20px; font-family:Arial,sans-serif; font-size:14px; color:#222;'>
<li style='margin-bottom:4px;'>We use Outsolvi for confidence-scored tracking</li>
<li style='margin-bottom:4px;'>Tier 1–5 scoring on every open</li>
<li style='margin-bottom:4px;'>Native Outlook + Gmail</li>
</ul>
<p style='margin:0 0 14px 0; font-family:Arial,sans-serif; font-size:14px; line-height:1.5; color:#222;'>Grab a time: <a href='https://cal.com/you/15min' style='color:#2563eb; text-decoration:underline;'>pick a slot</a></p>
</td></tr></table>

What it does

Parses CommonMark markdown. Renders to HTML with all styles inlined (no <style> blocks — Outlook ignores them). Uses tables for layout where divs would fail. Preserves links and images.

When to use

Authoring transactional or newsletter emails in markdown for legibility, then converting at send time. Lets you keep editable markdown source while shipping email-safe HTML.

FAQ

Why are tables required for email layout?+

Outlook desktop (Word rendering engine) doesn't fully support CSS flexbox, grid, or div-based layout. Tables remain the only universally-supported layout primitive across all major email clients.

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From Headers

Reference page with worked examples: a forwarded email, a marketing platform send, a bounce, and a phishing attempt — each annotated to show what's in From vs Return-Path and which checks pass.

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Converter ran. Now track what happens after you hit send.

Most senders convert formatting and move on. Outsolvi tracks what the recipient actually does with that converted email — opens (confidence-scored, not fake), clicks, replies, forwards. From $7/user/mo yearly.

Track the next send

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Nate SummersCo-Founder, Outsolvi

Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi runs Tier 1 to 5 confidence scoring on every open, native in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.

Last reviewed May 25, 2026Editorially independent

We update these pages when the underlying mechanics change — new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.

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