Skip to content
SPECIFICTION
Get listed

PostBrix

postbrix.com

From $9/mo Free plan WebAPI
Visit postbrix.com
Spec score 8.5 #8 of 63 in Email Design Software

What it is

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.

Spec sheet

What it does
PostBrix is a cloud email-design workspace for creating, storing, previewing, exporting and managing responsive templates and related assets.Read 15 Oct 2026 · postbrix.com
Product
PostBrix is a browser-based email builder for creating responsive email templates and managing campaign-ready assets.Read 7 Oct 2026 · postbrix.com
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.Read 15 Oct 2026 · postbrix.com
Integrations
Export guidance covers Mailchimp, SendGrid, Klaviyo, Brevo, HubSpot, Postmark, Customer.io, ActiveCampaign and Mailgun, plus Amazon SES compatibility on the homepage.Read 15 Oct 2026 · postbrix.com
Support
Support is offered through [email protected], and the careers page identifies the operating location as Madhya Pradesh, India.Read 15 Oct 2026 · postbrix.com
Headquarters
Madhya Pradesh, IndiaRead 28 Sep 2026 · postbrix.com
AI assistance
The product offers AI-assisted generation and refinement of email copy.Read 7 Oct 2026 · postbrix.com
AI writing
Built-in AI can generate and refine email copy, with usage controlled by plan credits.Read 15 Oct 2026 · postbrix.com
API limits
The Pro plan lists a 50,000-call monthly API allowance and a 60-request-per-minute rate limit.Read 15 Oct 2026 · postbrix.com
Builder
Its visual drag-and-drop editor uses blocks such as text, images, buttons, dividers, and columns without requiring HTML knowledge.Read 7 Oct 2026 · postbrix.com
Company legal identity
The public About page identifies the operator simply as PostBrix and does not provide a separate registered legal entity name or founding year.Read 15 Oct 2026 · postbrix.com
Company profile
A LinkedIn profile using the PostBrix name lists Ahmedabad, Gujarat, India.Read 15 Oct 2026 · in.linkedin.com
Compliance policies
The legal center publishes policies covering GDPR, DPDP, PCI payments, acceptable use, deletion, refunds, subscriptions and subprocessors.Read 15 Oct 2026 · postbrix.com
Documentation depth
The documentation site reports 91 production guides across eight categories and covers API, JSON schema, rendering, integrations, testing and troubleshooting.Read 15 Oct 2026 · postbrix.com
Dynamic templates
Handlebars variables, conditions, loops and sample data are supported for personalized email output.Read 15 Oct 2026 · postbrix.com
Email testing
The documentation describes live preview, test emails, responsive checks, and rendering troubleshooting.Read 7 Oct 2026 · postbrix.com
Exports
Users can export production-ready MJML or fully inlined HTML for use in their existing email workflow.Read 7 Oct 2026 · postbrix.com
HTML export
Designs can be exported as production-ready, fully inlined HTML suitable for external email platforms.Read 15 Oct 2026 · postbrix.com
Image studio
An in-builder studio provides AI background removal, cropping presets, color adjustments, stickers and automatic WebP or PNG optimization.Read 15 Oct 2026 · postbrix.com
Licence
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.Read 15 Oct 2026 · postbrix.com
Limit: AI responsibility
Users remain responsible for checking AI-generated content because PostBrix disclaims accuracy, legality and infringement warranties for AI output.Read 15 Oct 2026 · postbrix.com
Limit: free quotas
The free tier caps exports at five per month, downloads at five per day, test emails at three per day and AI use at ten lifetime credits.Read 15 Oct 2026 · postbrix.com
Limit: service warranty
The terms disclaim uninterrupted availability, error-free operation and identical rendering across all email clients.Read 15 Oct 2026 · postbrix.com
MJML export
Users can download raw MJML source for developer-controlled build pipelines.Read 15 Oct 2026 · postbrix.com
Notable limits
The free plan includes 5 monthly exports, 5 daily downloads, 3 daily test emails, and 10 lifetime AI generations.Read 7 Oct 2026 · postbrix.com
Responsive design
PostBrix says its layouts are designed for mobile and desktop by default.Read 7 Oct 2026 · postbrix.com
Responsive layouts
PostBrix automatically targets desktop and mobile email layouts and supports mobile stacking and per-block overrides.Read 15 Oct 2026 · postbrix.com
Reusable components
Headers, footers, calls to action and other brand elements can be saved and reused across projects.Read 15 Oct 2026 · postbrix.com
SDKs
Documentation advertises client libraries and SDK guidance with multi-language code samples, but no specific SDK package names are identified on the documentation landing page.Read 15 Oct 2026 · postbrix.com
Security and payments
The pricing page says payment details are not stored or processed on PostBrix servers and that payments are handled by PCI-compliant payment gateways.Read 7 Oct 2026 · postbrix.com
Security and privacy
The privacy policy says PostBrix uses PCI-compliant payment processors, keeps card numbers and CVV with those processors, and supports GDPR and India DPDP data rights.Read 15 Oct 2026 · postbrix.com
Self-hosting
The product pages describe browser delivery and hosted API rendering; no self-hosting package or deployment instructions are published.Read 15 Oct 2026 · postbrix.com
Template library
The service offers more than 60 responsive templates spanning billing, SaaS, ecommerce, fulfillment, onboarding, newsletters, transactional and marketing categories.Read 15 Oct 2026 · postbrix.com
Testing tools
Guides cover live preview, test emails, responsive checks, edge-case data and rendering troubleshooting.Read 15 Oct 2026 · postbrix.com
Visual builder
The editor lets users arrange text, images, buttons, columns, dividers and reusable blocks without writing HTML.Read 15 Oct 2026 · postbrix.com
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.Read 7 Oct 2026 · postbrix.com

Plans and prices

Free Free 3 projects · 1 workspace · 50 MB storage · 5 daily downloads · 3 daily test emails · 5 monthly spam checks · 1-day version history · 3 versions · 10 lifetime AI generations · 5 monthly exports Read 7 Oct 2026 · postbrix.com
Free Free 3 projects · 1 workspace · 50 MB storage · 5 daily downloads · 3 daily test emails · 1-day version history · 3 versions · 10 lifetime AI credits · 5 monthly exports Read 15 Oct 2026 · postbrix.com
Starter $9 a month $9/mo 15 projects · 5 workspaces · 200 MB storage · unlimited daily downloads · 10 daily test emails · 50 monthly spam checks · 7-day version history · 10 versions · 50 AI generations/month · unlimited monthly exports Read 7 Oct 2026 · postbrix.com
Starter $9 a month $9/mo 7-day free trial · 15 projects · 5 workspaces · 200 MB storage · unlimited daily downloads · 10 daily test emails · 7-day version history · 10 versions · unlimited monthly exports · 50 AI credits/month Read 15 Oct 2026 · postbrix.com
Pro $29 a month $29/mo 14-day free trial · 100 projects · 10 workspaces · 2,000 MB storage · 50 daily test emails · 30-day version history · 50 versions · 50,000 monthly API limit · 60 requests/minute · 250 AI credits/month Read 15 Oct 2026 · postbrix.com
Pro $29 a month $29/mo 100 projects · 10 workspaces · 2,000 MB storage · 50 daily test emails · 250 monthly spam checks · 30-day version history · 50 versions · 50,000 monthly API limit · 60 requests/minute · 250 AI generations/month Read 7 Oct 2026 · postbrix.com
Enterprise Priced on request Custom Unlimited projects and workspaces · 25,000 MB storage · 500 daily test emails · unlimited monthly spam checks and version history · 500,000 monthly API limit · 300 requests/minute · custom S3/MinIO storage · 2,000 AI generations/month · white labeling Read 7 Oct 2026 · postbrix.com
Enterprise & Agency Priced on request Custom workspace · dedicated staging infrastructure · white labeling · custom asset catalogs · dedicated support-level agreements Read 15 Oct 2026 · postbrix.com

Every PostBrix plan and price →

Strong points and limits

Strong points

  • Build layouts with drag-and-drop blocks.
  • Export MJML or inlined HTML.
  • Save reusable headers, footers, and calls to action.
  • Free plan and free trial available.

Limits

  • Free plan allows five monthly exports.
  • Free plan has ten lifetime AI generations.
  • Free plan allows three daily test emails.

Who it suits

PostBrix suits marketing teams, SaaS companies, and agencies creating business emails. It may also fit teams that need to export templates into an existing email workflow or manage templates through an API.

Verdict

PostBrix combines visual email composition with reusable blocks, code exports, and API-based rendering. The free plan has firm usage limits; paid plans start at $9/mo.

Where Specifiction places it

Alternatives to PostBrixAll alternatives →