PlanetScale

Serverless MySQL and Postgres platform built on Vitess, offering horizontal scalability through explicit sharding alongside developer workflows such as database branching and deploy requests. Teams get a single database connection that routes across shards, with schema changes that deploy fully online and rollbacks that run without downtime or data loss.

Trusted by enterprises such as Slack, GitHub, Block, Cash App, Intercom, and MyFitnessPal. Vitess was developed at YouTube by the platform's founders to scale MySQL to petabytes across tens of thousands of nodes, and now powers tier-zero workloads at major web properties. Stands out from traditional managed MySQL with Git-like branching for schema changes, unlimited IOPS on NVMe-backed infrastructure, and online operations for resizing and resharding.

Key capabilities:

• Database branching and deploy requests for zero-downtime schema changes with team review
• Revertible schema changes with no data loss, plus fully online cluster resizing and resharding
• Horizontal sharding via Vitess, with a shared-nothing architecture across many nodes
• Query Insights and full observability for cluster health and performance
• Vector support for embeddings alongside relational data in both MySQL and Postgres
• Integrations with Fivetran, Airbyte, Hightouch, Datadog, Debezium, and others

Backend teams use PlanetScale for apps that outgrow single-node MySQL and need sharding without rewriting queries. DevOps runs schema migrations through deploy requests and rollback when needed. Frameworks such as Next.js, Rails, Laravel, and Django connect via standard MySQL or Postgres drivers and the PlanetScale CLI.