CSS Inliner for Email

Convert CSS styles to inline HTML attributes for email templates

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How to use

  • Paste your HTML with <style> tags or external CSS
  • Click "Inline CSS" to convert styles to inline attributes
  • The tool extracts CSS rules and applies them directly to matching elements
  • Use "Copy" to copy the result or "Download" to save as a file
  • Perfect for email templates that require inline styles

Note: This tool handles basic CSS selectors (class, id, tag). Complex selectors may not be fully supported. Always test your email in multiple email clients.

What is CSS Inlining for Email?

CSS inlining converts CSS styles from stylesheets or style tags into inline HTML style attributes. Email clients often strip out external stylesheets and style tags, so inline styles are essential for consistent email rendering. Inlining CSS ensures emails look consistent across different email clients.

Why Inline CSS for Email?

CSS inlining is necessary for email compatibility:

  • Email Client Support: Many email clients don't support external stylesheets or style tags
  • Consistent Rendering: Inline styles ensure emails render consistently across clients
  • Email Marketing: Essential for HTML email templates and marketing campaigns
  • Client Compatibility: Works with Gmail, Outlook, Apple Mail, and other clients
  • Professional Appearance: Ensures emails maintain design integrity

Common Use Cases

Email Template Preparation

Prepare HTML email templates for sending. Convert CSS styles to inline attributes to ensure consistent rendering across email clients.

Email Marketing Campaigns

Convert email marketing templates to use inline styles. Essential for newsletters, promotional emails, and marketing campaigns.

Email Client Compatibility

Ensure emails render correctly in Gmail, Outlook, Apple Mail, and other email clients. Inline styles are the most reliable way to style emails.

HTML Email Development

Develop HTML emails with external CSS, then inline styles before sending. Work with clean CSS during development, inline for production.

Email Template Migration

Migrate existing email templates to use inline styles. Convert legacy templates to modern inline CSS format.

CSS Inlining Process

Our tool handles:

  1. CSS Extraction: Extracts CSS from stylesheets or style tags
  2. Selector Matching: Matches CSS selectors to HTML elements
  3. Style Application: Applies styles as inline style attributes
  4. Specificity Handling: Handles CSS specificity correctly
  5. Output Generation: Generates HTML with inline styles

Email CSS Best Practices

  • Use Inline Styles: Always inline CSS for email templates
  • Avoid External Stylesheets: Email clients strip external stylesheets
  • Test Across Clients: Test emails in multiple email clients
  • Use Tables for Layout: Tables are more reliable than CSS layout in emails
  • Keep Styles Simple: Complex CSS may not work in all email clients

Supported CSS Features

Our inliner supports:

  • Class Selectors: .class-name styles
  • ID Selectors: #id-name styles
  • Tag Selectors: element styles
  • Basic Properties: Colors, fonts, spacing, borders
  • Media Queries: Limited support (varies by email client)

Privacy and Security

Our CSS Inliner processes all HTML and CSS entirely in your browser. No email content or styles are sent to our servers, ensuring complete privacy for sensitive email templates.

Related Tools

If you need other email or web development tools, check out:

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