Find a key's cluster slot, convert DynamoDB JSON, build a bulk-load file, map a keyspace, and see what consistent hashing does when a node joins. Every tool runs in your browser, nothing you paste leaves the page, and the code is on GitHub.
5
Free tools so far, each built on one JavaScript file
0 bytes
Sent anywhere. The tools send nothing, and their pages can't load anything from other sites
0
Dependencies to install, in the browser or from the command line
Apache 2.0
License for all of the code
Each tool was checked against real Valkey 9.1.2 and Redis 8.10.2 servers, the AWS SDK or reference code, and its tests replay the recorded answers. The results are on GitHub.
tools
Five cache servers share 100,000 keys. Traffic grows, and you add a sixth. With the obvious rule, hash the key and divide by the number of servers, 83% of the keys now …
tools
Code that ran fine against a single Redis or Valkey server often breaks the day it moves to a cluster. An MGET, a MULTI block or a Lua script that touched three keys now …
tools
A key-value store has no tables and no schema to read. Everything sits in one flat list of keys, and the only structure is whatever people built into the names. After a …
tools
The slow way to load a million keys into Redis or Valkey is a loop that sends a command, waits for the answer, and sends the next. Most of the time goes on the waiting. …
tools
Ask DynamoDB for an item and you get every value wrapped in its type: {"name": {"S": "Ana"}, "visits": {"N": …
guides
A key-value store files every value under a key. You hand it a key and a value to keep, and later you hand it the key and get the value back. That’s the whole …
If a small tool could save you a chore around Redis, Valkey, DynamoDB or another key-value store, write in and say what it should do.