PlanetScale is a serverless MySQL database platform built on Vitess — the battle-tested database technology that powers MySQL at massive scale for companies like YouTube, GitHub, and Slack. Founded in 2018, PlanetScale made enterprise-grade MySQL features accessible to every developer.

PlanetScale's most loved feature is its non-blocking schema change workflow — you can alter tables with millions of rows (adding indexes, changing columns) without any downtime, using a familiar Git-like branching model for your database schema.

Key Features

• Non-blocking schema changes — Migrate large tables without locks or downtime using schema branching and deploy requests
• Database branching — Create isolated schema branches for development and feature work
• Serverless — scale to zero, scale to billions of rows automatically
• Built on Vitess — proven at YouTube/Google scale
• Query Insights — identify and optimize slow queries
• Rewind — restore your database to any point in time
• Multi-region deployment with global read replicas

PlanetScale offers a Hobby plan (free), with Scaler Pro plans starting at $39/month and custom Enterprise pricing for very large databases.