Free HTML Email Builder
Build email templates with a block-based editor. Add text, images, buttons, and dividers — then export clean, email-client-compatible HTML ready to send.
How to Use This Tool
Add content blocks
Click "Add Block" to insert text, image, button, divider, or spacer blocks. Each block is independently editable and can be reordered.
Customise each block
Edit text content, button labels and links, image URLs, and spacing directly. All changes update the preview in real time.
Export the HTML
Click "Export HTML" to download a complete, table-based HTML file ready to paste into your email platform or send directly.
Why Email HTML Is Different from Web HTML
Building HTML for email is a distinct discipline from building for the web. The CSS and layout techniques that are standard in web development — flexbox, CSS grid, CSS variables, modern selectors, web fonts loaded via @font-face — have unreliable or zero support in email clients. Outlook on Windows uses Microsoft Word's rendering engine, which predates many modern CSS features and applies its own interpretation to standard properties. Gmail strips style block CSS and requires inline styles. Yahoo's rendering is inconsistent across its web and mobile interfaces.
The solution that has remained reliable for two decades is table-based layout with inline CSS. Tables render predictably in virtually every email client because they map directly to the HTML table model, which even ancient rendering engines support. Inline styles — CSS applied directly to each element rather than defined in a separate stylesheet — survive Gmail's CSS stripping and work in clients that ignore style blocks entirely.
Our HTML email builder generates table-based inline-styled HTML automatically, so you design with blocks and the tool handles the underlying HTML complexity. The output is email-client-safe code, not web-optimised code — the distinction is the entire reason this kind of purpose-built tool is useful rather than just writing HTML by hand or exporting from a web design tool.
Email Template Structure and Best Practices
A well-structured HTML email follows a consistent pattern: an outer wrapper that constrains the email width (typically 600px for desktop), a header area for branding, one or more content sections, and a footer with unsubscribe and contact information. This structure maps directly to the block system in the builder: header blocks establish brand identity, content blocks carry the message, and button blocks provide clear calls to action.
The 600px width convention exists because it is the narrowest common desktop viewport for email clients while remaining wide enough to accommodate readable text and images. At widths beyond 600px, some email clients do not scale content down, causing horizontal scrolling. At exactly 600px with a fluid inner layout, the email scales down cleanly to mobile viewports.
For mobile rendering specifically, font sizes below 14px often trigger automatic text resizing on iOS that can distort layouts. Images should have explicit width and height attributes so the layout does not collapse while images load. Line heights of 1.4–1.6× font size improve readability in the confined mobile reading environment. All of these parameters are handled in the builder's block defaults.
Content Strategy for Email Templates
An email template is not a web page in a different medium — it is a message with a specific job. The most effective email templates are structured around a single primary message and a single primary call to action. Multiple competing CTAs dilute click rates and confuse recipients about what the email is asking them to do.
The first 100 words of the email body carry disproportionate weight. Recipients make the read/delete decision in seconds based on the first visible content below the subject line. In HTML email terms, this means the first content block after any header image should immediately address the recipient's interest or need — not build up to it.
Button blocks should use action-oriented text that describes what happens on click, not generic text like "Click here". "Download the guide", "Start your free trial", "View your report" each describe a specific outcome. This improves click rates and, for spam filter purposes, is more specific and less trigger-word-dense than generic CTAs. Link text that describes the destination is also more accessible for screen reader users.
Exporting and Using Your Template
The exported HTML from the builder is a standalone file containing a complete, self-contained email. The HTML uses inline styles throughout so it does not depend on any external stylesheet. Images reference external URLs you provide — the HTML itself does not embed images as base64 data, which keeps file size small and avoids attachment-like behaviour in some email clients.
To use the template in an email platform, copy the HTML source and paste it into the HTML editor of your platform. In mailtani, use the HTML editor mode in the campaign builder and paste directly. In other platforms, look for an "import HTML" or "paste HTML" option — most modern ESPs support this.
Before sending to a real list, preview the exported HTML using the free email preview tool to verify desktop and mobile rendering. Send a test message to yourself and check the actual rendering in your email client. Small tweaks — adjusting padding, font size, or image dimensions — can be made by editing the exported HTML directly or by returning to the builder, making changes, and re-exporting.
Key Features
Block-Based Editor
Add, reorder, and delete text, image, button, divider, and spacer blocks with an intuitive block interface.
Live HTML Preview
See the rendered email update in real time as you edit each block, so there are no surprises in the export.
Table-Based HTML Output
Exports clean, table-based, inline-styled HTML compatible with Gmail, Outlook, Apple Mail, and all major email clients.
One-Click HTML Export
Download the complete HTML file with one click, ready to paste into any email platform.
No Account Required
Build and export email templates without signing up. No data is stored or sent to any server.
Mobile-Responsive Output
Generated HTML includes responsive width handling so the template scales correctly on mobile viewports.
Frequently Asked Questions
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