Upyo: Simple and modern email sending library for JavaScript

3 months ago 2

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Cross-runtime

Works seamlessly on Node.js, Deno, Bun, and edge functions with consistent API.

🎮

Dead simple

Intuitive API for sending emails with just a few lines of code.

🛡️

Type-safe

TypeScript-first design with discriminated unions for compile-time error handling safety.

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Lightweight

Zero dependencies and minimal footprint for fast integration.

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Built for testing

Comprehensive mock transport for reliable testing without sending real emails.

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Provider independence

Switch between SMTP, Mailgun, SendGrid, and other providers without code changes.

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