Product News

Introducing Cross-Device Email Preview: see your email on real devices before you send

Cross-Device Email Preview renders your template on the real clients you pick, from Outlook on Windows to dark mode on iPhone, and returns a screenshot of each one. Pick from 96 clients across 21 apps without leaving Design Studio.

New settings page, easier to use, with new background colors

Courier settings has been redesigned. Workspace pages and developer pages are grouped separately, every page says what it's for, and the app now comes in light or dark with nine background colors.

Broadcasts: send one-time messages to your users, right from Courier

Broadcasts lets you send a one-time message to a group of your users, now or on a schedule, without leaving Courier.

Build and launch a hosted preference center that looks great on web and mobile

Courier's redesigned Preferences Editor and hosted preference center let you build, preview, and launch a branded notification preference center with no frontend code, plus new bulk APIs to migrate preferences.

Experiments: A/B test your messages inside Journeys

Experiments bring A/B testing into Journeys. On any send node, run 2 to 10 message variants, split traffic by weight, and Courier buckets each recipient deterministically, keeping them in the same variant across sends. Compare sent, delivered, open, and click rates per variant, then promote the one you want, without leaving your journey or bolting on a separate testing tool.

AI Translation: localize any template in seconds

Courier AI Translation brings built-in localization to Design Studio. Add a language to any template and AI translates every string in seconds. Works across email, SMS, push, in-app, and chat. Review side by side, override anything, and publish from the same editor you already use.

Inbox SDKs for Vue and Angular: a native in-app notification center

Courier now ships first-class inbox SDKs for Angular and Vue. Drop in a real-time notification center, toasts, and a preferences center with native components, an injectable service, and a composable, all backed by the same in-app inbox that already powers React and JavaScript apps.

What we shipped this month: May 2026 Edition

Courier shipped five launches in May 2026: AI Agent in Journeys (GA), the new Journeys API for code-driven flows, Custom Environments, Design Studio styling controls, and Courier Console v3. Each one closes a gap between writing software and shipping the messages that go with it.

Courier journeys, as code

Most journeys don't die because they were hard to build — they die because they're hard to change. A day-5 nudge written before a new activation event existed still fires for users who hit the milestone on day two. Courier journeys are now programmable: a public Journeys API with SDKs, a CLI, and an agent skill on top. Describe a flow to your coding agent, get an ASCII diagram, ship it. Full post covers the access points, an example end-to-end, and the one gotcha worth knowing (`output_schema` is mandatory on AI nodes).