MailEditor vs MJML
MailEditor
maileditor.netMJML
mjml.ioSide by side
| Figure | MailEditor | MJML |
|---|---|---|
| Price from | $9/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 3 |
| Spec score · Email Design Software | 8.9 (#5) | 8.6 (#7) |
| Spec score · Email Template Software | 9.0 (#3) | 8.7 (#6) |
| Documentation depth | The public help center contains an index, getting-started material and a September 2025 overview of editing, tags, AI generation, exports, timers, sliders and signatures. | Documentation covers component attributes, CLI options, Node usage, browser usage, JSON input, custom components, tooling and compatibility charts. |
| Integrations | The integration catalog lists Mailchimp, Gmail, Klaviyo, ActiveCampaign, SendGrid, Brevo, HubSpot, Outlook Web, Salesforce Pardot, Amazon SES, Braze, Campaign Monitor, Constant Contact, Iterable, MailUp and others. | The documented ecosystem includes Mailjet, Parcel, IntelliJ IDEA, Gradle, Neos CMS, and Easy-email. |
| Security | MailEditor says browser traffic and third-party connections use TLS 1.2 or higher, and its databases and file storage are encrypted at rest with AES-256. | MJML ignores includes by default and restricts enabled include paths to approved roots with canonical boundary checks. |
| Support | The pricing page describes its Get Prime offering as including priority support 24/7. | MJML invites users to contact [email protected] and participate through Slack and GitHub. |
| What it does | MailEditor is a drag-and-drop HTML email editor for creating, importing, visually editing, reusing and exporting responsive email templates. | MJML is a markup language and compiler that turns semantic email markup into responsive HTML using nested tables, inline CSS and client-specific workarounds. |
Plans
In their own words
MailEditor
MailEditor is an email design platform for creating responsive emails with a drag-and-drop editor. Users can assemble layouts from reusable modules or upload an existing HTML email template, edit it visually, and export it. A design prompt can produce an editable template draft. Templates can be downloaded or copied as HTML, with images hosted online, or saved in a MailEditor account for reuse. A Gmail add-on provides access to the template library and lets users insert templates from Gmail. Listed export integrations include Mailchimp, Gmail, Klaviyo, ActiveCampaign, SendGrid, Brevo, HubSpot, Outlook Web, and Salesforce Pardot. An embeddable JavaScript component can edit HTML and CSS in another application and return updated code. The free plan includes 2 members, 10 HTML exports, 5 ESP exports, 40 test emails, 20 saved templates, 300 MB storage, and 2 AI templates. Paid plans start at $9/mo, billed yearly. MailEditor says templates are its only stored customer content and are private by default.
MJML
MJML is a markup language for building responsive email layouts. Its engine converts MJML into email HTML made with nested tables and inline CSS, with responsive behavior for popular email clients, including Outlook. Reusable, extensible components provide a starting point, and users can create their own components. MJML is open source under the MIT license and free to use. Its online editor supports writing and rendering MJML, and its free REST API renders markup into responsive HTML. The command-line interface can compile files, watch for changes, and save generated HTML to a chosen file. Local installation is available through npm on macOS, Linux, and Windows; plugins are available for Visual Studio Code and Sublime Text, alongside a desktop app. API accounts receive an Application ID and two API keys, with public and secret keys intended for browser and back-end use. Includes are ignored by default, and enabled include paths are restricted to approved roots. Once the HTML is rendered, users must send it through an email service provider or directly from a shell. The mj-button component is not fully clickable because of email-client support.