Citus vs CockroachDB: What are the differences?
What is Citus? Worry-free Postgres for SaaS. Built to scale out. Citus is worry-free Postgres for SaaS. Made to scale out, Citus is an extension to Postgres that distributes queries across any number of servers. Citus is available as open source, as on-prem software, and as a fully-managed service.
What is CockroachDB? A cloud-native SQL database for building global, scalable cloud services that survive disasters. Cockroach Labs is the company building CockroachDB, an open source, survivable, strongly consistent, scale-out SQL database.
Citus and CockroachDB can be primarily classified as "Databases" tools.
Citus is an open source tool with 3.64K GitHub stars and 273 GitHub forks. Here's a link to Citus's open source repository on GitHub.