EmailBuilder.ai vs PostBrix
EmailBuilder.ai
emailbuilder.aiPostBrix
postbrix.comSide by side
| Figure | EmailBuilder.ai | PostBrix |
|---|---|---|
| Price from | $39/mo | $9/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 4 | 8 |
| Spec score · Email Design Software | 9.1 (#4) | 8.5 (#8) |
| AI writing | Its AI assistant can rewrite copy, change tone, translate content, and generate MJML email sections from prompts. | Built-in AI can generate and refine email copy, with usage controlled by plan credits. |
| Headquarters | Manhattan, Kansas, USA | Madhya Pradesh, India |
| Integrations | Named integrations include SendGrid, Mailjet, Mailgun, Brevo, Amazon SES, Postmark, Mailchimp, Zoho Campaigns, Gmail and Outlook. | Export guidance covers Mailchimp, SendGrid, Klaviyo, Brevo, HubSpot, Postmark, Customer.io, ActiveCampaign and Mailgun, plus Amazon SES compatibility on the homepage. |
| Licence | The reviewed public pages do not state an open-source licence for the EmailBuilder.ai service. | The terms state that PostBrix software, interfaces, documentation and underlying technology are owned by PostBrix or its licensors; users receive service access rather than an open-source licence. |
| Product | EmailBuilder.ai is a drag-and-drop HTML email builder designed to create emails for sending through an email service provider. | PostBrix is a browser-based email builder for creating responsive email templates and managing campaign-ready assets. |
| Support | Email support is offered for questions, bugs and account issues, with a stated typical response within 24 business hours. | Support is offered through [email protected], and the careers page identifies the operating location as Madhya Pradesh, India. |
| What it does | EmailBuilder.ai is a web platform for visually building responsive MJML emails, editing code, exporting templates and sending through connected email-service providers. | PostBrix is a cloud email-design workspace for creating, storing, previewing, exporting and managing responsive templates and related assets. |
Plans
EmailBuilder.ai
- PlaygroundFree
- Maestro$39 a month
- Studio$199 a month
- Orchestra$499 a month
PostBrix
- FreeFree
- FreeFree
- Starter$9 a month
- Starter$9 a month
- Pro$29 a month
- Pro$29 a month
- EnterprisePriced on request
- Enterprise & AgencyPriced on request
In their own words
EmailBuilder.ai
EmailBuilder.ai is a web-based drag-and-drop builder for HTML emails sent through an email service provider. It is described for marketing campaigns, newsletters, transactional messages, welcome series, product announcements and custom HTML emails. Its AI assistant can rewrite copy, adjust tone, translate content and generate MJML sections from prompts. The builder compiles email HTML using MJML and provides virtual previews for phones, tablets and desktop. Users can create branded headers, footers and content blocks for reuse; the homepage lists more than 50 modules. HTML export and custom code editing are available. The integrations page says the service connects with more than 90 platforms and lists providers including SendGrid, Mailjet, Mailgun, Brevo, Amazon SES, Postmark, Mailchimp, Zoho Campaigns and Gmail. Many listed providers are marked “Coming Soon.” The free Playground plan includes 10 emails, 3 templates, 50 AI Assistant calls and 5 sends or exports. Maestro is $39 a month and lists 2 projects, unlimited emails and templates, 200 AI Assistant calls, 50 AI images, and 100 monthly sends or exports. A 30-day trial is listed.
PostBrix
PostBrix is a browser-based email builder for producing responsive templates and organizing assets for campaigns. Its visual editor lets users arrange text, images, buttons, dividers, and columns without writing HTML. Layouts are designed for mobile and desktop, and saved headers, footers, and calls to action can be reused across projects. The product can help generate or refine email copy with AI, then export templates as MJML or fully inlined HTML for an existing workflow. PostBrix says its exported code works with services that accept HTML or MJML, including Mailchimp, HubSpot, SendGrid, Brevo, Postmark, Amazon SES, Klaviyo, Customer.io, ActiveCampaign, and Mailgun. The documentation also describes REST API rendering and key management, live previews, test emails, responsive checks, and rendering troubleshooting. A free plan and free trial are available; paid plans start at $9/mo. The free tier is limited to five monthly exports, five daily downloads, three daily test emails, and ten lifetime AI generations.