Canary connects existing email accounts and runs on phones, computers, browsers, and supported platforms.
Best Email Design Software 2026
Email design tools let you create email layouts, assemble saved content blocks, and use HTML or custom code. This guide is for readers choosing a design tool for email work.
Look at the editor, saved content blocks, HTML output, code and font controls, and the number of editor seats included. Also check supported platforms and whether a free plan or trial suits your needs.
MJML
MJML is a markup language and engine that turns email code into responsive HTML for popular email clients.
WebWindowsMac+4Beefree (now RGE Studio)
It suits designers who need to create branded emails or landing pages and value customization, brand consistency, and team collaboration.
WebAPIBlocks Edit
Blocks Edit lets teams visually edit HTML for websites, landing pages, marketing emails and other content on the web.
WebAPIEmailBuilder.ai
It suits people creating branded email campaigns or other HTML email for an email service provider.
WebBrowser extensionAPIPostBrix is a browser email builder for responsive templates, using blocks for text, images, buttons and columns.
Unlayer suits SaaS platforms, CRMs, marketing tools, and enterprise apps embedding content creation for their users.
Dragble adds email, page, and popup builders to SaaS products through an embeddable SDK.
Parcel suits email developers, designers, and marketers who want to code and preview emails in a shared web workspace.
MailEditor is a web platform for responsive email design, HTML template editing and reusable layout modules.
Stripo suits solo email creators, marketing teams, agencies, and larger agency workflows.
Unitpost creates, previews, tests, sends, and tracks transactional or marketing email with visual, TSX, or AI tools.
Mail Designer 365 creates and sends branded email campaigns with a visual editor on Mac.
MailStyler is desktop software for creating responsive newsletter and email templates on Windows and macOS.
Build and edit sites from blueprints or a blank slate, with forms, analytics, SEO controls and role-based access.
Postcards is a visual web email builder for responsive marketing emails, with templates, blocks and AI design tools.
Web tool for building, previewing, testing, sharing and exporting HTML email templates with code or AI compose.
GrapesJS Studio SDK is a front-end embeddable editor for creating responsive MJML email content in another app.
Edit HTML email templates with visual sections, saved blocks, code controls, previews and compatibility checks.
Before you choose
Pick an editor for the way you work
Compare editor type and custom code editing. A visual editor may suit a layout-focused workflow, while code editing matters if you need direct control over HTML.
Check whether the tool supports HTML export and reusable content blocks before choosing.
Check where you can work
The category includes web, API, self-hosted, browser extension, macOS, and Windows options. Confirm that a tool's platform matches how you plan to build or integrate email designs.
Compare plans and trial terms
A free plan and a free trial are different offers. Check what the maker lists for the plan, trial length, and paid starting price.
RGE Studio, formerly Beefree, offers a free plan and a 15-day trial; Blocks Edit's listing includes a free plan, a 30-day trial, and paid plans starting at $10 per user monthly.
Consider code access and licensing
If you need to read or change the code, compare custom code editing and HTML export. Check the maker's licence terms if open-source software is important to your choice.
Canary is listed as open source, and MJML is listed with a free plan.