Invar: The Diskless Document Store

Diskless tiered storage

Invar uses object storage as the durable source of truth, with the option to layer NVMe volumes and memory on top.

Slash your cost-per-GB, stop overprovisioning expensive disks ahead of time, and benefit from S3's durability for data you can't afford to lose.

Works with your existing Redis™ workloads

Invar has broad support for core Redis command groups including standard data structures, Bloom filters, JSON, Streams and Lua scripting.

Built for Density

Invar is a single Rust binary and runs as a single-writer. This makes it ideal for massive per-tenant parallelism.

Run a single instance in your local docker-compose.yml or deploy thousands of pods in production.

Runs locally without S3

Runs on your local machine or CI environment with real disk persistence, without any S3 dependency.

Always free & open

Invar is an open-source, Apache 2.0-licensed project and is free to use commercially.