D1

Cloudflare’s native serverless SQL database built on SQLite for global, low-latency data storage.

D1 brings the reliability of SQLite to the Cloudflare edge, allowing developers to deploy relational databases alongside Workers without the overhead of traditional connection pooling. It handles the heavy lifting of global replication and point-in-time recovery (PITR) automatically. You get a 10GB storage limit per database on the standard plan and the ability to query data using familiar SQL syntax. By keeping data physically close to the user, D1 eliminates the typical round-trip latency found in centralized database architectures.

https://developers.cloudflare.com/d1/