Implementations

Use Zarr in your language.

Zarr is an open specification with libraries in Python, Rust, JavaScript, C, C++, Java, Julia, R, OCaml, and Elixir. Pick the implementation that fits your stack — they all read and write the same on-disk format.

Implementations

Python

v2v3

Zarr-Python activity

Python

v2v3

Zarrita activity

Rust

v2v3

zarrs activity

C++

v2

cpp-zarr activity

C++

v2

GDAL activity

C++

v2v3

TensorStore activity

C++

v2

xtensor-zarr activity

C++

v2

z5 activity

C

v2

NetCDF-C activity

JavaScript

v2

Zarr.js activity

JavaScript

v2v3

zarrita.js activity

Java

v2v3

JZarr activity

Java

v2

n5-zarr activity

Java

v2

netCDF-Java activity

Java

v2v3

zarr-java activity

Julia

v2

Zarr.jl activity

R

v2

pizzarr activity

R

v2

Rarr activity

OCaml

v3

zarr-ml activity

Elixir

v2v3

ExZarr activity

Contributing

Missing an implementation? Open a PR to add it. The grid is data-driven from a single TS file, so contributions are a one-line edit plus a link.

Want to help maintain or improve one of the implementations? Most are open-source and welcome contributors — fix issues, improve docs, or add features. Drop into a community meeting to share what you're working on.