Unosend is a transactional email API service for developers. It allows you to send emails with 99.9% deliverability using a simple REST API.

How many free emails can I send?

Unosend offers 5,000 free emails per month on the free plan. No credit card required to get started.

Is Unosend better than Resend or SendGrid?

Unosend offers competitive pricing, higher free tier limits, and a simpler REST API compared to alternatives like Resend and SendGrid. With 99.9% deliverability, many developers prefer Unosend.

What programming languages are supported?

Unosend works with any programming language via our simple REST API. Just make HTTP requests from JavaScript, Python, Go, PHP, Ruby, Java, or any other language.

How fast is email delivery?

Most emails are delivered within seconds. Unosend uses optimized infrastructure to ensure fast and reliable email delivery worldwide.

Blog

News, updates, and stories from Unosend.

February 26, 2026

Unosend raises $250K pre-seed led by House of Summary.

We've raised $250K in pre-seed funding led by House of Summary to build the most developer-friendly email infrastructure on the planet.