About
KeyValueStore.com publishes free tools for the people who run key-value stores: Redis and Valkey clusters, DynamoDB tables, and the caches and stores built on the same …
Pages
Consistent Hashing Playground
Spread keys over a few servers four ways, then add a server or take one away and count what moves. The playground compares modulo hashing, a hash ring with virtual nodes, …
Contact
KeyValueStore.com would like to hear from: Anyone with a tool idea. A chore around Redis, Valkey, DynamoDB, etcd or another key-value store that a small tool could save …
Free Tools for Key-Value Stores
Free tools for the jobs that come with running a key-value store: working out cluster slots, looking inside a snapshot, reading a server’s traffic, converting …
Hash Slot Calculator for Redis and Valkey Clusters
Find which slot of a Redis or Valkey cluster a key lands in, and which primary holds it. Check a multi-key command for CROSSSLOT errors before your code sends it, and see …
Keyspace Map for Redis and Valkey
Paste a list of keys and see what a keyspace holds: the prefixes as a tree with counts, the naming patterns behind the keys with IDs and hashes folded together, how many …
Mass Insert Builder for redis-cli and valkey-cli --pipe
Turn CSV, JSON or plain commands into a file in the Redis protocol, ready for redis-cli --pipe or valkey-cli --pipe, the fast way to load a lot of data into Redis or …
Snapshot Viewer for Redis and Valkey RDB Files
Open a Redis or Valkey snapshot, the dump.rdb file, and see what’s in it: keys by type and database, the biggest keys, the prefixes that take the most space, how …
Traffic Analyzer for Redis and Valkey MONITOR Output
Load what MONITOR printed and see what a Redis or Valkey server’s traffic is made of: commands per second, the command mix, the busiest keys and clients, how the …
Typed JSON Converter for DynamoDB
Turn DynamoDB’s typed JSON into plain JSON, and plain JSON into typed JSON you can send to DynamoDB. Paste the output of aws dynamodb scan, an export to S3 or a …