Mosaico vs PostBrix
Mosaico
mosaico.ioPostBrix
postbrix.comSide by side
| Figure | Mosaico | PostBrix |
|---|---|---|
| Price from | Free | $9/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 8 |
| Spec score · Email Design Software | 7.6 (#30) | 8.5 (#8) |
| Headquarters | Italy | Madhya Pradesh, India |
| Self-hosting | The README describes building and running Mosaico locally and includes Dockerfiles for Alpine Linux and CentOS 7. | The product pages describe browser delivery and hosted API rendering; no self-hosting package or deployment instructions are published. |
| Support | The project directs free-support requests to GitHub issues and lists commercial support by email. | Support is offered through [email protected], and the careers page identifies the operating location as Madhya Pradesh, India. |
Plans
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
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.