Newsletters, automated campaigns, and subscriber management without the bloat of tools you've already outgrown. Free up to 500 subscribers.
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Free account, 500 subscribers, no credit card
Drag-and-drop email builder, subscriber segments, automated birthday emails, and open-rate tracking without juggling three different tools.
REST API with full docs, official Node.js and Python SDKs, or just use the dashboard. Your call.
npm install, import, send. That's it.
Get Your API KeyOfficial SDK with full TypeScript support for Node.js applications.
npm install @resletter/node-sdkView on npmOfficial Python SDK for Django, Flask, FastAPI, and more.
pip install resletterView on PyPIReal results from real teams using the platform
500+ founders already sending with Resletter
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Free plan with 500 subscribers, your own SMTP, and full API access. No credit card required.
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Drag-and-drop blocks, pre-built templates, and mobile preview. Go from blank page to sent in minutes.
Group sends into campaigns, target specific subscriber segments, and schedule delivery by timezone.
Opens, clicks, bounces, and unsubscribes -- tracked per send and per campaign. Real-time delivery logs included.
Trigger emails on signup, birthdays, or custom events. Set delays, conditions, and sequences visually.
Newsletter editor, subscriber groups, campaign scheduling, and real-time analytics.
Opens, clicks, bounces, and subscriber growth -- all on one screen. Filter by campaign, date range, or segment.
Drag-and-drop blocks, AI writing assist, and mobile preview. Ship a newsletter in under 10 minutes.
Create subscriber groups by tag, signup date, or custom fields. Import from CSV or add via API.
Group your newsletters into campaigns, target specific segments, and schedule sends for the best open times.
Describe what you need -- a product update, a welcome sequence, a promo -- and the editor writes a first draft you can edit.
Here's what's new this month.
We have some updates to share.

Invite editors, admins, or viewers. Each role sees only what they need.
Manage access

Birthday discounts, renewal reminders, onboarding sequences -- triggered by subscriber metadata dates.
Start free with 500 subscribers. Upgrade when you need more.