Lettr icon
Lettr icon

Lettr

Lettr is the Email API for modern builders — design beautiful templates, send with confidence, monitor everything in real time, and stay deliverable. Built for teams and ready for vibe-coding.

Cost / License

  • Freemium (Subscription)
  • Proprietary

Application type

Platforms

  • Software as a Service (SaaS)
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Features

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Properties

  1.  Privacy focused
  2.  Lightweight

Features

  1.  WYSIWYG Support
  2.  Auto Responder
  3.  Ad-free
  4.  Email template editor
  5.  WYSIWYG HTML Editor
  6.  Email automation
  7.  Email tracking

Lettr News & Activities

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Lettr information

  • Licensing

    Proprietary and Freemium product.

  • Pricing

    Subscription that costs from $15 per month + free version with limited functionality.

  • Alternatives

    8 alternatives listed

  • Supported Languages

    • English

AlternativeTo Categories

Business & Commerce, Development

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What is Lettr?

Lettr is a modern Email API built for developers and digital builders who care about craft.

Design beautiful, production-ready email templates in Lettr’s visual editor, connect your app in minutes, and ship transactional or product email with confidence. From password resets and onboarding flows to receipts and notifications — Lettr handles the sending, monitoring, and deliverability so you can focus on building.

With Lettr you get:

  • A clean, powerful template editor
  • Fast, reliable email delivery
  • Real-time logs, events, and monitoring
  • Deliverability alerts and domain guidance (SPF, DKIM, DMARC)
  • A simple API that works with any stack
  • Built for modern workflows — including vibe-coding

Whether you're building a SaaS, shipping an MVP, or iterating at startup speed, Lettr keeps your email infrastructure simple, observable, and dependable.

Official Links