CockroachDB vs RethinkDB: What are the differences?
Developers describe CockroachDB as "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. On the other hand, RethinkDB is detailed as "JSON. Scales to multiple machines with very little effort. Open source". RethinkDB is built to store JSON documents, and scale to multiple machines with very little effort. It has a pleasant query language that supports really useful queries like table joins and group by, and is easy to setup and learn.
CockroachDB and RethinkDB can be categorized as "Databases" tools.
RethinkDB is an open source tool with 22.4K GitHub stars and 1.74K GitHub forks. Here's a link to RethinkDB's open source repository on GitHub.
According to the StackShare community, RethinkDB has a broader approval, being mentioned in 37 company stacks & 25 developers stacks; compared to CockroachDB, which is listed in 13 company stacks and 8 developer stacks.