PostBrix vs Unlayer
PostBrix
postbrix.comUnlayer
unlayer.comSide by side
| Figure | PostBrix | Unlayer |
|---|---|---|
| Price from | $9/mo | $250/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 8 | 5 |
| Spec score · Email Design Software | 8.5 (#8) | 8.4 (#10) |
| Spec score · Email Template Software | 8.6 (#7) | 8.4 (#9) |
| API | The documented REST API uses https://api.postbrix.com/v1 with Bearer API-key authentication and endpoints for rendering templates, listing projects, fetching project AST data and health checks. | The Cloud API is documented as OpenAPI 3.0.0 with bearer authentication using project API keys or personal access tokens. |
| Exports | Users can export production-ready MJML or fully inlined HTML for use in their existing email workflow. | The platform describes exports to HTML, PDF, image, plain text, and ZIP, with server-side or client-side options. |
| Headquarters | Madhya Pradesh, India | San Francisco, California, United States |
| Integrations | Export guidance covers Mailchimp, SendGrid, Klaviyo, Brevo, HubSpot, Postmark, Customer.io, ActiveCampaign and Mailgun, plus Amazon SES compatibility on the homepage. | G2 reports integrations with 28 platforms, while Unlayer's help guidance names Amazon SES, SendGrid, Mailgun and Postmark as delivery services users can connect. |
| Product | PostBrix is a browser-based email builder for creating responsive email templates and managing campaign-ready assets. | Unlayer is an embeddable developer platform for adding email, page, popup, and document builders to software products. |
| Self-hosting | The product pages describe browser delivery and hosted API rendering; no self-hosting package or deployment instructions are published. | On-premise or offline deployment is listed as an Enterprise capability rather than a standard plan feature. |
| Support | Support is offered through [email protected], and the careers page identifies the operating location as Madhya Pradesh, India. | Enterprise plans include 24/7 priority support, a named customer success manager, a technical account manager, and custom SLAs. |
| What it does | PostBrix is a cloud email-design workspace for creating, storing, previewing, exporting and managing responsive templates and related assets. | Unlayer provides embeddable drag-and-drop builders for emails, web pages, documents and popups that SaaS products can add to their own applications. |
| Who it serves | The company describes PostBrix as a workspace for teams creating professional business emails, and identifies marketing teams, SaaS companies, and agencies as users. | Unlayer describes its customers as SaaS platforms, CRMs, marketing tools, and enterprise apps embedding content creation for their users. |
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
Unlayer
- FreeFree
- Launch$250 a month
- Scale$750 a month
- Optimize$2,000 a month
- EnterprisePriced 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.
Unlayer
Unlayer is an embeddable developer platform for adding email, page, popup, and document builders to software products. Its AI-assisted drag-and-drop email editor is described as rendering across Gmail, Outlook, and more than 90 other email clients. The page builder creates responsive landing pages and web content with sections, columns, and breakpoints. The document builder supports dynamic templates, merge tags, collaborative editing, and PDF or HTML export. Developer tools include an embeddable SDK, REST APIs, React Elements, a CLI, agent skills, and events. Unlayer offers React, Angular, and Vue integrations, while its JavaScript SDK is described as technology agnostic. Exports include HTML, PDF, images, plain text, and ZIP, with server-side or client-side options. A free plan includes all four builder types. Paid plans start at $250/mo and include 1 TB bandwidth; extra bandwidth is sold in recurring 500 GB packs for $50 per month. Enterprise plans include custom contracts and support and allow self-hosting inside a customer VPC.