Resend

Active

Email for developers

Winter 2023Founded 202323 peopleRemote

resend.com ↗LinkedIn ↗X ↗Crunchbase ↗See on the Idea Map B2B momentum

About

Resend is the new email API for developers. It's designed for you to build, test, and send transactional emails at scale. If you're using Sendgrid, AWS SES, or Postmark, come talk to us.

From their website

as of Jun 7, 2026resend.com ↗

SaaSSubscription

Resend is an email platform for developers to deliver transactional and marketing emails at scale. It emphasizes a developer-friendly experience with SDKs, APIs, and tools to reach humans in inboxes.

Resend provides an email delivery platform that integrates into code via SDKs across multiple languages and frameworks. It offers features such as test mode for API experimentation, real-time webhook notifications, a visual editor for composing emails, template creation with React-based templates, contact management with analytics, and broadcasts. It also includes infrastructure and deliverability features like dedicated IPs, IP/domain monitoring, DKIM/SPF security, BIMI support, DMARC, and suppression lists to manage reputation and deliverability.

Who it’s for: Developers and engineering teams at companies of various sizes who need to deliver transactional and marketing emails from their applications.

Features

code-first email sending with SDKs
test mode to simulate events
webhook-based real-time notifications
visual email editor and template builder
React-based email templates via react-email
contact management and segmentation
deliverability and infrastructure protections (DKIM/SPF, DMARC)

Hiring/traction mentions: none explicit; user-facing feature breadth and multiple language SDKs imply active development and growth.

Founders · 2

Zeno RochaFounder & CEO

Founder & CEO at Resend. Previously VP of Developer Experience at WorkOS and CPO at Liferay Cloud. I'm originally from Brazil and now living in San Francisco. I love dark mode, open source, and side projects.

LinkedIn ↗X ↗

Bu KinoshitaFounder

Co-founder & CTO at Resend and building react.email. 1st eng hire at WorkOS, which is now a Series B company valued at $500M. Built the first MVP and scaled it all the way to serve 200+ b2b sass customers. Also built more than 100 node packages and 2 products that were OSS, Taskr and Secret, which were featured in the #1 and #4 on Product Hunt

LinkedIn ↗X ↗

Launch

Launched on Y Combinator · Feb 2023

View launch post ↗

Send better emails that don't land in the spam folder

Resend launches a developer-focused email sending platform that aims to improve deliverability and observability, reduce spam placement, and offer regional sending options. It introduces a React-based email development workflow via react.email and provides a REST API/SDKs for multiple languages to simplify integration and improve time-to-inbox for end users.

From the original launch (Feb 2023) — may be outdated.