Repositories list

• zarr-python

  Public
  An implementation of chunked, compressed, N-dimensional arrays for Python.

  pythoncompressedndimensional-arrays+ 1

  pythoncompressedndimensional-arrayszarr

  Python

  •

  MIT License

  •438438 forks•2k2k stars•395395 issues•116116 pull requests•Updated Aug 6, 2026Aug 6, 2026

• VirtualiZarr

  Public
  Cloud-Optimize your Scientific Data as Virtual Zarr stores, using xarray syntax.

  Python

  •

  Apache License 2.0

  •6969 forks•297297 stars•139139 issues•2727 pull requests•Updated Aug 5, 2026Aug 5, 2026

• pydantic-zarr

  Public
  Pydantic models for Zarr

  Python

  •

  BSD 3-Clause "New" or "Revised" License

  •55 forks•4848 stars•3131 issues•22 pull requests•Updated Aug 5, 2026Aug 5, 2026

• zarr-developers.github.io

  Public
  Zarr Homepage

  conventionsformatgeospatial+ 3

  conventionsformatgeospatialbioimagingndimensional-arrayszarr

  Vue

  •

  Other

  •3030 forks•66 stars•1818 issues•2525 pull requests•Updated Aug 5, 2026Aug 5, 2026

• pizzarr

  Public
  Slice into Zarr arrays in R 🍕

  zarr

  zarr

  R

  •

  Other

  •33 forks•4949 stars•1010 issues•11 pull request•Updated Aug 4, 2026Aug 4, 2026

• geozarr-spec

  Public
  GeoZarr defines geospatial conventions for storing multidimensional georeferenced grids using the Zarr format

  HTML

  •

  Creative Commons Attribution 4.0 International

  •1919 forks•210210 stars•3535 issues•22 pull requests•Updated Aug 3, 2026Aug 3, 2026

• n5py

  Public
  Python implementation of the N5 file format

  Python

  •

  MIT License

  •11 fork•00 stars•88 issues•77 pull requests•Updated Aug 3, 2026Aug 3, 2026

• numcodecs

  Public
  A Python package providing buffer compression and transformation codecs for use in data storage and communication applications.

  Python

  •

  MIT License

  •113113 forks•149149 stars•9696 issues•3030 pull requests•Updated Aug 3, 2026Aug 3, 2026

• ndsel

  Public
  N-dimensional array selection

  Python

  •

  Apache License 2.0

  •11 fork•11 star•00 issues•00 pull requests•Updated Aug 1, 2026Aug 1, 2026

• zarr-java

  Public
  Java implementation of the Zarr Specification

  Java

  •

  MIT License

  •2222 forks•2222 stars•55 issues•88 pull requests•Updated Jul 29, 2026Jul 29, 2026

• geozarr-site

  Public
  Landing page for anyone interested in GeoZarr development

  Vue

  •

  MIT License

  •55 forks•44 stars•00 issues•00 pull requests•Updated Jul 29, 2026Jul 29, 2026

• zarr-specs

  Public
  Zarr core protocol for storage and retrieval of N-dimensional typed arrays

  storagearrayszarr

  storagearrayszarr

  Creative Commons Attribution 4.0 International

  •3535 forks•108108 stars•122122 issues•1010 pull requests•Updated Jul 27, 2026Jul 27, 2026

• zarr-book

  Public
  Zarr

  Vue

  •

  MIT License

  •11 fork•99 stars•00 issues•00 pull requests•Updated Jul 24, 2026Jul 24, 2026

• cast-value.py

  Public
  Python implementation of the `cast_value` codec.

  Python

  •

  MIT License

  •11 fork•11 star•11 issue•11 pull request•Updated Jul 21, 2026Jul 21, 2026

• zarr-python-planning

  Public
  Plans for zarr-python

  Python

  •

  MIT License

  •11 fork•22 stars•44 issues•00 pull requests•Updated Jul 15, 2026Jul 15, 2026

• zarr-extensions

  Public
  This repository contains the specifications for Zarr extensions for Zarr version 3.

  1616 forks•1919 stars•1616 issues•2222 pull requests•Updated Jul 14, 2026Jul 14, 2026

• perfcapture

  Public
  Capture the performance of a computer system whilst running a set of benchmark workloads.

  Python

  •

  MIT License

  •22 forks•44 stars•1212 issues•11 pull request•Updated Jul 6, 2026Jul 6, 2026

• jzarr

  Public
  A Java implementation of the API offered by the Python zarr package

  Java

  •

  MIT License

  •2222 forks•55 stars•44 issues•44 pull requests•Updated Jun 30, 2026Jun 30, 2026

• geozarr-toolkit

  Public
  Tools for creating, exploring, and validating GeoZarr data

  JavaScript

  •

  MIT License

  •66 forks•2828 stars•33 issues•44 pull requests•Updated Jun 15, 2026Jun 15, 2026

• zeps

  Public
  Zarr Enhancement Proposals

  open-sourcecommunityfeedback

  open-sourcecommunityfeedback

  Ruby

  •

  Creative Commons Zero v1.0 Universal

  •1616 forks•1616 stars•44 issues•77 pull requests•Updated May 29, 2026May 29, 2026

• governance

  Public
  The governance process and model for zarr-developers

  Creative Commons Zero v1.0 Universal

  •99 forks•33 stars•88 issues•11 pull request•Updated May 29, 2026May 29, 2026

• cast-value.rs

  Public
  Implementation of the `cast_value` codec for Zarr.

  Rust

  •

  Apache License 2.0

  •22 forks•00 stars•33 issues•00 pull requests•Updated Apr 7, 2026Apr 7, 2026

• blog

  Public
  Zarr Official Blog

  bloggeospatialdata-format+ 3

  bloggeospatialdata-formatbioimagingzarrgiscus

  Ruby

  •

  Creative Commons Attribution 4.0 International

  •88 forks•22 stars•33 issues•33 pull requests•Updated Mar 5, 2026Mar 5, 2026

• zarr-summit-2025

  Public
  Website for the 2025 Zarr Summit

  TypeScript

  •

  MIT License

  •22 forks•00 stars•00 issues•00 pull requests•Updated Dec 4, 2025Dec 4, 2025

• zarr-logo

  Public
  Official logos for the Zarr project

  logozarr

  logozarr

  22 forks•11 star•44 issues•11 pull request•Updated Sep 19, 2025Sep 19, 2025

• s3fs

  Public
  S3 Filesystem

  Python

  •

  BSD 3-Clause "New" or "Revised" License

  •302302 forks•11 star•00 issues•00 pull requests•Updated Jun 4, 2025Jun 4, 2025

• gsoc

  Public
  Google Summer of Code - Zarr

  Creative Commons Zero v1.0 Universal

  •33 forks•11 star•00 issues•11 pull request•Updated Feb 8, 2025Feb 8, 2025

• zarr-illustrations-falk-2024

  Public
  Illustrations created by Henning Falk for the Zarr community

  illustrationszarr

  illustrationszarr

  Shell

  •00 forks•22 stars•00 issues•00 pull requests•Updated Jan 29, 2025Jan 29, 2025

• zarr-illustrations-falk-2022

  Public
  Illustrations created by Henning Falk for the Zarr community

  illustrationszarr

  illustrationszarr

  Shell

  •11 fork•4848 stars•33 issues•00 pull requests•Updated Jan 29, 2025Jan 29, 2025

• zarr_implementations

  Public
  Python

  •

  MIT License

  •1818 forks•4141 stars•1818 issues•44 pull requests•Updated Jul 24, 2024Jul 24, 2024