Canary vs PostBrix
Canary
canarymail.devPostBrix
postbrix.comSide by side
| Figure | Canary | PostBrix |
|---|---|---|
| Price from | $3/mo | $9/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 3 | 8 |
| Spec score · Email Design Software | 9.4 (#1) | 8.5 (#8) |
| Spec score · Email Template Software | 9.4 (#1) | 8.6 (#7) |
| Product | Canary Mail is an email client that connects to existing accounts rather than providing or hosting email accounts. | PostBrix is a browser-based email builder for creating responsive email templates and managing campaign-ready assets. |
| Responsive layouts | Templates support containers and two- or three-column layouts for side-by-side content. | PostBrix automatically targets desktop and mobile email layouts and supports mobile stacking and per-block overrides. |
| SDKs | The email API page provides examples for cURL, JavaScript, Python, PHP, Ruby, Go, Java, C#, Kotlin, and Swift. | 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. |
| Self-hosting | The quick-start guide uses Docker Compose with PostgreSQL, Redis, MinIO, and Gotenberg services. | The product pages describe browser delivery and hosted API rendering; no self-hosting package or deployment instructions are published. |
| Support | Documentation directs users to GitHub Issues for bugs and GitHub Discussions for questions and feature requests. | Support is offered through [email protected], and the careers page identifies the operating location as Madhya Pradesh, India. |
| What it does | Canary is a developer-oriented visual email-template designer with API-based delivery and self-hosting. | PostBrix is a cloud email-design workspace for creating, storing, previewing, exporting and managing responsive templates and related assets. |
| Who it serves | The maker describes Canary Mail as built mainly for individuals and small teams, and says it is not a full helpdesk platform. | The company describes PostBrix as a workspace for teams creating professional business emails, and identifies marketing teams, SaaS companies, and agencies as 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
In their own words
Canary
Canary Mail is an email client for managing accounts you already have; it does not provide or host email accounts. It supports Gmail, Outlook, iCloud, Exchange, and IMAP accounts, with apps or access listed for Android, iOS, macOS, Windows, web, and extension platforms. A unified inbox, priority and unread views, selective notifications, snooze, pinning, and cleanup tools help organize messages. Growth and Pro+ include AI Copilot for drafting replies, suggesting subject lines, rewriting in a selected tone, summarizing threads, and searching across accounts. The maker says email is not used to train AI models and that triage and indexing run on the device. Asana and Todoist integrations can turn email into tasks. Pro+ adds PGP and SecureSend encryption, tracker blocking, and phishing detection. Free costs nothing; Growth costs $36 a year; Pro+ costs $100 a year. A seven-day trial needs no card and does not auto-bill; paid subscriptions are yearly, with lifetime purchases also available.
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.