Building db9s, a database TUI

db9s is a k9s-style terminal UI for browsing, querying, and editing databases and message queues, written in Rust. Same idea as k9s for Kubernetes: one tool, consistent screens and keybindings, no matter what you're pointed at.

What it talks to

PostgreSQL, MongoDB, Redis, and RabbitMQ are supported today. MySQL/MariaDB, SQLite, SQL Server, ClickHouse, and Cassandra/ScyllaDB are planned — every backend gets the same screens and keys, so adding one is mostly about mapping its data model onto db9s's containers/rows abstraction.

Using it

cargo install db9s
db9s --postgres postgres://user:pass@localhost/db
db9s --mongo mongodb://localhost:27017
db9s --redis redis://localhost:6379
db9s --rabbitmq http://guest:guest@localhost:15672

Or just run db9s and add connections from the TUI with a — they're saved to ~/.config/db9s/config.toml.

Navigation is j/k or arrows, / for a raw query (SQL for Postgres, a JSON filter or pipeline for Mongo, any command for Redis), e to edit a row inline, E to edit it in $EDITOR with a diff confirmation, and d to delete it. The footer always shows what's available at the current screen.

Why

I wanted one muscle-memory set of keys for poking at whatever datastore I'm debugging that day, instead of switching between psql, mongosh, redis-cli, and the RabbitMQ management UI. Redis in particular maps each key type (string, hash, list, set, zset, stream) onto db9s's rows with the right edit/delete semantics for that type, so it behaves like redis-cli would, just browsable.