Case Study: Resend scales email infrastructure with Supabase

Resend's Journey with Supabase Scaling Email Infrastructure with Ease

Resend, a developer-focused email API platform, needed a fast way to launch and scale without getting bogged down in backend complexity. As the company grew from an early-stage YC startup to serving thousands of customers and hundreds of thousands of developer signups, it faced challenges around rapid development, scalability, security, and stability. They turned to Supabase for database and authentication support.

Supabase provided Resend with a full-stack backend built on PostgreSQL, along with authentication, role-based access control, backups, and scalable infrastructure features like partitioning and read replicas. With Supabase, Resend launched quickly, scaled to 5,000+ paying customers and 300,000+ registered users, and now sends millions of emails daily. Supabase also helped them improve security and avoid costly backend migrations while keeping development velocity high.

Resend

Zeno Rocha

Chief Executive Officer