EmailBuilder.ai vs Postcards

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.

Postcards is a visual drag-and-drop builder for responsive marketing emails made from blocks and templates. Users can export clean HTML or send designs to listed email platforms, including Mailchimp, HubSpot, Klaviyo, SendGrid, Brevo, Constant Contact, and Zoho; export limits depend on the plan. Existing HTML emails can be imported and edited on paid plans. The AI Suite can generate templates from prompts and assist with editing, restyling, restructuring, translation, and design analysis. Shared workspaces, real-time collaboration, comments, and teammate roles support team work. Paid plans include Email Client Preview for checking Gmail, Outlook, Apple Mail, and Yahoo on mobile and desktop. The builder runs in a browser and requires an internet connection, though exported files can be opened and edited offline. Access is through the maker's hosted app link. The free Start plan costs nothing and includes 10 template projects, five monthly exports, 0 AI credits per month, 10 test emails daily, and unlimited teammates. Plus costs $16 a month; Pro costs $24 a month. The maker says user projects and content remain theirs and are not used to train AI models.