Markdown to Email Converter

This tool supports the full GitHub Flavored Markdown (GFM) spec: headings (# through ######), bold (**text**), italic (*text*), links ([text](url)), images (), unordered lists (- item), ordered lists (1. item), blockquotes (> text), inline code (`code`), fenced code blocks (```), horizontal rules (---), and tables (| col | col |). All elements are converted to email-safe HTML with inline styles. Strikethrough (~~text~~) and task lists (- [x] item) are also supported.

Yes. The output uses table-based layout and inline CSS — the two techniques required for consistent rendering across email clients. It works in Gmail (web and mobile), Outlook (2007–2024 and 365), Apple Mail, Yahoo Mail, Thunderbird, and all other major clients. The HTML includes Outlook-specific conditional comments (MSO) for proper rendering in Microsoft's Word-based rendering engine, which is one of the strictest email renderers.

Yes. Use the standard markdown image syntax: . Images are rendered with max-width: 100% so they scale responsively, and include proper alt text for accessibility. Make sure your images are hosted on a publicly accessible URL (like an S3 bucket, Cloudinary, or Imgur) — email clients don't support embedded or base64 images reliably. For best deliverability, keep total image weight under 800KB.

Completely free with no limits, no signup, and no watermarks. The conversion happens entirely in your browser using JavaScript — no data is sent to any server, no account is required, and you can use it as many times as you want. Your markdown content never leaves your device. There are no daily conversion caps or premium tiers.

Click 'Copy' to copy the email HTML to your clipboard, then go to your email service provider and look for the HTML editor option. In Mailchimp, use a 'Code' content block. In SendGrid, switch to the 'Code Editor' tab. In ConvertKit, use the 'HTML' block. In Constant Contact, use the 'Custom Code' block. In Sequenzy, you can paste it as a custom HTML block or send it directly via the transactional email API. You can also click 'Download' to save the HTML file and import it into platforms that support file upload.

The HTML uses standard inline styles that email clients respect in light mode. For dark mode, most email clients (Apple Mail, Gmail app, Outlook.com) automatically invert colors using their own algorithms. The generated output uses a white background with dark text, which inverts cleanly in most dark mode implementations. For full dark mode control, you would need to add @media (prefers-color-scheme: dark) queries — but these are only supported by Apple Mail, some Outlook versions, and a handful of other clients. The code blocks already use a dark background with light text, so they look natural in both modes.

Yes. The email uses a max-width: 600px container with width: 100% that automatically scales down on smaller screens. All images have max-width: 100% applied so they resize proportionally. The outer table fills the full viewport width while centering the content container. This fluid approach works reliably across all mobile email clients including the Gmail app (Android and iOS), Apple Mail on iPhone, Samsung Mail, and Outlook Mobile. No media queries are needed for the basic responsive behavior.

The tool generates HTML with a system font stack (-apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial) for maximum rendering consistency across devices. Text colors use a neutral gray palette (#374151 for body, #111827 for headings) and links are styled in blue (#2563eb). To customize these, copy the HTML output and do a find-and-replace on the hex color codes or font-family values — all styles are inline and human-readable. You can also run the output through our CSS Inliner tool to apply your own brand stylesheet on top.

Email clients (Gmail, Outlook, Apple Mail, etc.) only understand HTML — they cannot render markdown syntax. If you paste raw markdown into an email compose window, your recipients will see literal asterisks (*like this*), hash symbols (# Like This), and bracket notation ([links](url)) instead of formatted text. This tool converts your markdown to properly structured HTML with inline styles, producing the exact visual formatting you intended. The inline styles are critical because many email clients strip <style> tags entirely.

The output is designed for universal email client compatibility. It renders correctly in: Gmail (web, Android, iOS), Google Workspace, Outlook (2007, 2010, 2013, 2016, 2019, 2021, 2024, Microsoft 365, and Outlook.com), Apple Mail (macOS, iOS, iPadOS), Yahoo Mail (web and mobile), Thunderbird, Samsung Mail, AOL Mail, Proton Mail, Fastmail, Hey, Spark, Edison Mail, and Windows Mail. The table-based layout with inline styles is the universally supported approach recommended by email development tools like Litmus and Email on Acid.

Microsoft Outlook (2007 through 2024) uses Microsoft Word's HTML rendering engine instead of a web browser engine. Word has extremely poor support for modern CSS layout properties — it doesn't understand flexbox, CSS Grid, float-based layouts, or even reliable div positioning. Table-based layout is the only method that renders consistently across both Word-based Outlook and all web-based email clients. The generated tables use role='presentation' so screen readers correctly ignore them as layout artifacts and don't announce row/column structure.

Absolutely — the output is production-ready for transactional emails. Write your order confirmation, password reset, shipping notification, or account verification content in markdown, convert it here, and use the HTML in your transactional email system (SendGrid, Postmark, Amazon SES, Resend, Sequenzy, etc.). The clean, standards-compliant HTML integrates directly with any email sending API. Many developers use this workflow to maintain email templates in markdown files within their codebase, converting them at build time.

Yes — 100% private. All markdown-to-HTML conversion happens client-side in your browser using JavaScript. Your content is never transmitted to any server, stored in any database, or logged anywhere. You can verify this by opening your browser's network tab (DevTools → Network) — you'll see zero outgoing requests when you type or convert. The tool even works offline: disconnect from the internet and it continues to function. No cookies, no analytics on your content, no data collection whatsoever.

There is no hard limit since the conversion runs entirely in your browser's JavaScript engine. In practice, it handles documents of any reasonable length without lag. However, be aware of email client limits: Gmail clips emails larger than approximately 102KB of HTML (showing a 'View entire message' link). Outlook has a similar but less strict limit around 150KB. For optimal deliverability and readability, keep marketing emails under 50KB of HTML and focus on concise, scannable content. Long-form content is better suited for a blog post linked from your email.

This web tool is designed for manual, interactive use. For programmatic or CLI-based markdown-to-email conversion, you can use the same approach in your own code: parse markdown with a library like 'marked' (JavaScript), 'markdown-it' (JavaScript), or 'python-markdown' (Python), then apply inline styles to the HTML output using a CSS inliner like 'juice' or 'premailer'. For production email workflows, consider using Sequenzy's API which accepts HTML content directly and handles delivery, tracking, and unsubscribe management automatically.

Standard markdown-to-HTML converters produce HTML meant for web browsers, using <style> tags, CSS classes, and modern layout techniques. Email clients are far more restrictive: most strip <style> tags entirely, don't support flexbox/grid, and have inconsistent CSS property support. A markdown-to-email converter (like this tool) produces email-specific HTML with all CSS inlined on every element, table-based layout for structure, and no external dependencies. The result is HTML that renders identically across 50+ email client and device combinations.

Markdown doesn't have native button syntax, but you can create visually prominent links that function as CTAs. Use bold link syntax like **[Get Started →](https://example.com)** which renders as a bold, clickable link. For a proper HTML button with background color and padding, you'll need to edit the generated HTML directly — add a table-cell-based button structure after conversion. Alternatively, use Sequenzy's email editor which has native button blocks with customizable colors, sizes, and shapes.

Add your logo at the top of your markdown using image syntax: . The image will render at full width by default. For a specific width, you'll need to edit the generated HTML to add a width attribute to the <img> tag. For a consistently branded header with logo, tagline, and navigation links, consider using Sequenzy's email editor which includes a dedicated logo block that automatically pulls your brand's logo.

Yes. Use standard GitHub Flavored Markdown table syntax with pipes and dashes. The converter outputs proper HTML <table> elements with inline styles for borders (1px solid #d1d5db), padding (10px 12px), and header row styling (gray background with bold text). Tables render well in all major email clients including Outlook, which uses its own table rendering engine. Keep tables simple — avoid nested tables or complex spanning in markdown, as email clients have limited support for advanced table layouts.

Yes — this is one of the most popular use cases. Write your newsletter content in markdown (headings for sections, lists for bullet points, blockquotes for callouts, links for CTAs), convert it here, and paste the HTML into your newsletter platform. Many newsletter creators prefer writing in markdown because it's faster than WYSIWYG editors and version-controllable in Git. The 600px container width matches the standard newsletter layout used by Substack, Beehiiv, and other newsletter platforms.

Most email clients strip <style> tags from the email head and body for security reasons. Gmail, Yahoo Mail, and many others remove all CSS that isn't directly on an element via the style attribute. This means any CSS classes, external stylesheets, or <style> blocks will be completely ignored, leaving your email unstyled. Inline styles (style='...') on each individual HTML element are the only universally supported way to style email content. This tool applies all styles inline automatically so you don't have to do it manually.

The email uses a system font stack: -apple-system (San Francisco on Apple devices), BlinkMacSystemFont, Segoe UI (Windows), Roboto (Android), Helvetica, Arial, sans-serif. This ensures fast rendering with no external font loading. Custom web fonts (including Google Fonts) can be loaded via @import or <link> in the <head>, but support is limited — only Apple Mail, iOS Mail, Thunderbird, and some Android clients render them. Gmail, Outlook, and Yahoo Mail will fall back to the system font stack. For reliable brand typography, stick with web-safe fonts.

This tool includes a built-in live preview that updates as you type. Use the Desktop/Mobile toggle to see how your email renders at 600px (desktop inbox) and 375px (mobile phone) widths. The preview is rendered in a sandboxed iframe, showing exactly what recipients will see. For testing across specific email clients (like Outlook 2019 vs. Gmail), use a dedicated testing service like Litmus or Email on Acid — paste the generated HTML into their testing tool to see screenshots from 90+ email client/device combinations.

This tool is a converter only — it generates the HTML but does not send emails. To send the email, copy the HTML and use an email service provider (ESP) like Sequenzy, SendGrid, Mailchimp, Postmark, or Amazon SES. If you need to send programmatically, use your ESP's API with the HTML as the email body. For quick one-off tests, you can paste the HTML into Gmail's compose window (use the Chrome extension 'HTML Insert for Gmail') or Outlook's 'Insert as Text' feature.

Add an unsubscribe link at the bottom of your markdown using standard link syntax: [Unsubscribe](https://your-domain.com/unsubscribe). CAN-SPAM and GDPR regulations require a working unsubscribe mechanism in every marketing email. Most ESPs automatically append an unsubscribe link, but it's good practice to include one in your template explicitly. If you use Sequenzy, the {{unsubscribe_url}} variable is automatically replaced with a working unsubscribe link for each recipient.

This tool uses 600px, which is the industry standard for email width. It fits comfortably in most email client reading panes (Gmail, Outlook, Yahoo) without horizontal scrolling, and scales down gracefully on mobile screens. Some modern email designers use 640px or even 700px, but 600px remains the safest choice for universal compatibility. The content padding is set to 40px on each side, giving you roughly 520px of actual content width — enough for readable paragraph text at 14-16px font size.

Yes. Simply include your ESP's merge tag syntax directly in the markdown text. For example, write 'Hi {{first_name}},' or 'Hi *|FNAME|*,' (Mailchimp syntax) in your markdown. The converter treats these as plain text and passes them through to the HTML untouched. Your ESP will then replace them with actual subscriber data at send time. This works with Sequenzy ({{variable}}), Mailchimp (*|VARIABLE|*), SendGrid ({{variable}}), ConvertKit, and any other platform that uses text-based merge tags.

Blockquotes (> text in markdown) are rendered as styled <blockquote> elements with a 4px left border in light gray (#e5e7eb), a subtle background color (#f9fafb), and slightly darker text (#4b5563). This creates a visually distinct callout that works well for highlighting quotes, tips, important notes, or featured testimonials in your emails. The styling is applied via inline CSS, so it renders consistently across Gmail, Outlook, Apple Mail, and other clients.

Inline code (`backtick` syntax) renders with a light gray background (#f3f4f6), subtle border-radius, and monospace font (SFMono-Regular, Consolas, Liberation Mono, Menlo). Fenced code blocks (triple backtick) render as dark-themed blocks with a dark background (#1f2937) and light text (#e5e7eb), similar to a code editor. Both use monospace fonts for proper code formatting. This is ideal for developer newsletters, technical documentation emails, or API notification emails that include code snippets.

Yes. The converter correctly handles Unicode characters including emoji (👋 🎉 ✅), accented characters (é, ñ, ü), CJK characters (中文, 日本語, 한국어), and HTML entities (&amp;, &lt;, etc.). The HTML output uses UTF-8 encoding (declared in the <meta charset> tag) which is universally supported by email clients. You can include emoji in subject lines and body text — most modern email clients render them natively.

This web tool handles one conversion at a time. For batch conversion of multiple markdown files, you'll want a programmatic approach: use a script with the 'marked' library (npm install marked) to loop through your .md files and apply the same inline-style renderer. Many teams keep their email templates as .md files in Git and convert them during their CI/CD build process. This workflow gives you version control, code review, and consistent email output from a single source of truth.

GitHub Flavored Markdown allows inline HTML, and this converter passes it through to the output. If you write <strong style='color: red;'>important</strong> in your markdown, it will appear in the email HTML as-is. This is useful for adding custom-styled elements that markdown doesn't support natively, like colored text or centered images. However, be careful — any raw HTML you include won't have inline styles automatically applied, so make sure to include styles directly on those elements.

They serve different purposes. This tool is ideal for developers, technical writers, and anyone who prefers writing in plain text over drag-and-drop interfaces. Markdown is faster to write, version-controllable in Git, portable across platforms, and produces consistently clean HTML. WYSIWYG email builders (Mailchimp, Sequenzy, etc.) are better for visual design-heavy emails with multi-column layouts, branded headers, product cards, and complex formatting. Many teams use both: markdown for text-heavy content emails and a visual editor for promotional campaigns.

Standard markdown line breaks and blank lines control spacing in the output. Each paragraph (<p>) has 16px of bottom margin. Headings have 12-16px of bottom margin depending on level. Horizontal rules (---) add 24px of vertical spacing. For more precise control, you can add empty paragraphs (&nbsp;) in your markdown or edit the generated HTML to adjust margin/padding values on specific elements. The default spacing is tuned for readability at standard email widths.

Yes — once the page loads, all conversion logic runs in your browser with zero server dependencies. Disconnect from WiFi or put your device in airplane mode and the tool continues to work perfectly. Markdown input, live preview, HTML output, copy, and download all function offline. This also means the tool works on slow or unreliable internet connections without any lag or timeouts.

Follow this testing workflow: (1) Use the built-in preview to check desktop and mobile rendering as you write. (2) Copy the HTML and send yourself a test email through your ESP — most have a 'send test' feature. (3) Check the test email in multiple clients: open it in Gmail web, the Gmail app on your phone, and Outlook if your audience uses it. (4) For comprehensive testing across 90+ clients, use Litmus or Email on Acid. (5) Check the plain text version — many email clients show plain text for accessibility, so make sure your content reads well without formatting.

MJML, Foundation for Emails (Inky), and Maizzle are full email development frameworks designed for building complex, multi-column, brand-heavy email templates with custom components. They require a build step, dependencies, and HTML/CSS knowledge. This markdown-to-email converter is for a different use case: quickly turning plain text content into clean, well-formatted email HTML without any setup, dependencies, or technical knowledge. Think of it as the difference between a word processor and a desktop publishing application — both produce documents, but for very different complexity levels.