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.

Email API Alternatives

Compare Unosend with Alternatives

See how Unosend compares to popular email API providers. Better pricing, more features, and a developer-first experience.

Start Free with 5,000 Emails

vs Resend

Looking for a Resend alternative? Unosend offers better pricing, more free emails, and our own infrastructure for reliable delivery.

More free emails (5,000 vs 3,000)Lower pricing on paid plans

vs SendGrid

Tired of SendGrid complexity? Unosend offers simple pricing, better free tier, and a developer-first experience.

Simple, predictable pricingMore generous free tier

vs Mailgun

Looking for a Mailgun alternative? Unosend offers simpler pricing, better free tier, and modern developer experience.

Permanent free tier (not just 3 months)More emails on free plan

vs Postmark

Consider Unosend as a Postmark alternative. Better free tier, similar deliverability, and competitive pricing.

Much better free tier (5,000 vs 100)Email validation included

vs Amazon SES

Looking for an easier alternative to Amazon SES? Unosend offers managed email with great deliverability and no AWS complexity.

No AWS account or complexity requiredBuilt-in deliverability dashboard

vs Brevo

Looking for a Brevo alternative? Unosend offers developer-first email API with simpler pricing and better transactional email support.

Built for developers, not marketersSimpler, transparent pricing

vs MailerSend

Compare Unosend vs MailerSend. Similar developer experience but with a more generous free tier and email validation included.

More free emails (5,000 vs 3,000)Email validation included at no cost

vs Elastic Email

Looking for an Elastic Email alternative? Unosend offers a cleaner API, better developer experience, and transparent pricing.

Modern, clean API designBetter documentation and SDKs

vs SMTP2GO

Consider Unosend as an SMTP2GO alternative. Modern API, developer-first approach, and a generous free tier.

5x more free emails (5,000 vs 1,000)Modern REST API in addition to SMTP

vs Loops

Compare Unosend vs Loops. Both are modern email APIs, but Unosend offers more free emails and a broader feature set.

More free emails (5,000 vs 2,000)Pay per email, not per contact

vs Plunk

Looking for a Plunk alternative? Unosend offers a similar developer experience with more features and better scalability.

More free emails on hosted planEmail validation included

Why Developers Choose Unosend

We built Unosend to solve the problems we had with other email APIs

Better Free Tier

5,000 free emails per month. More than Resend (3,000), SendGrid (100/day), or Postmark (100/month).

Simple Pricing

No complex tiers or hidden fees. Pay for what you use with predictable monthly pricing.

Developer First

Modern REST API, great documentation, and SDKs for Node.js, Python, Go, Ruby, and PHP.

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