Couchbase Server vs KeyDB
| Couchbase Server | KeyDB | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | — | Linux, macOS, self-hosted |
| Free plan | Yes | Yes |
| Vector search | Yes | No |
| Deployment | — | self-hosted |
| Data persistence | — | Yes |
| High availability | — | Yes |
| SQL support | — | No |
| Supported data models | — | strings, lists, sets, sorted sets, hashes, bitmaps, HyperLogLogs, streams |
Both are listed in Best In-Memory Databases. On Freedom251, KeyDB scores higher on our published basis.