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https://github.com/ijl/orjson

dataclasses datetime deserialization json numpy pyo3 python rust serialization

Score: 33.58287175332687

Last synced: about 3 hours ago
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Repository metadata:

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy


Owner metadata:


GitHub Events

Total
Last Year

Committers metadata

Last synced: about 20 hours ago

Total Commits: 778
Total Committers: 24
Avg Commits per committer: 32.417
Development Distribution Score (DDS): 0.049

Commits in past year: 40
Committers in past year: 1
Avg Commits per committer in past year: 40.0
Development Distribution Score (DDS) in past year: 0.0

Name Email Commits
ijl i****l@m****g 740
Anders Kaseorg a****k@m****u 5
Aarni Koskela a****x@i****i 4
messense m****e@i****m 3
Aviram Hassan a****n@b****m 2
Baul r****v@g****m 2
Eric Jolibois e****s@g****m 2
J. Nick Koston n****k@k****g 2
Marc Mueller 3****p 2
Ben Sully b****8@g****m 2
hauntsaninja 1
Benjamin A. Beasley c****e@m****t 1
David Tolnay d****y@g****m 1
Dominic LoBue d****e@g****m 1
Jack Amadeo j****o@g****m 1
Jakob Keller 5****r 1
Marco Ribeiro s****o@g****m 1
Nazar Kostetskyi s****x@u****t 1
Paul Skopnik p****l@s****e 1
Rami Chowdhury 4****s 1
Ville Vainio v****o@g****m 1
Zachary Dremann d****n@g****m 1
konstin k****n@m****g 1
o.ermakov o****v@c****u 1

Issue and Pull Request metadata

Last synced: about 3 hours ago

Total issues: 256
Total pull requests: 111
Average time to close issues: 16 days
Average time to close pull requests: 15 days
Total issue authors: 237
Total pull request authors: 55
Average comments per issue: 2.05
Average comments per pull request: 1.23
Merged pull request: 0
Bot issues: 0
Bot pull requests: 0

Past year issues: 11
Past year pull requests: 12
Past year average time to close issues: 5 days
Past year average time to close pull requests: 15 days
Past year issue authors: 10
Past year pull request authors: 8
Past year average comments per issue: 0.55
Past year average comments per pull request: 1.67
Past year merged pull request: 0
Past year bot issues: 0
Past year bot pull requests: 0

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/ijl/orjson

Top Issue Authors

  • jankrnavek (3)
  • gotmax23 (3)
  • mgorny (3)
  • lejmr (2)
  • bdraco (2)
  • TommyDuc (2)
  • dcnieho (2)
  • jm-nab (2)
  • musicinmybrain (2)
  • emontnemery (2)
  • Marco-Sulla (2)
  • dgrigonis (2)
  • Dr-Emann (2)
  • HairlessVillager (2)
  • kloczek (2)

Top Pull Request Authors

  • catherio (9)
  • andersk (7)
  • soof-golan (5)
  • musicinmybrain (5)
  • timkpaine (4)
  • freddiewanah (4)
  • DeflateAwning (4)
  • akx (4)
  • M0dEx (3)
  • jacobromero (3)
  • Dr-Emann (3)
  • denisonlinus (3)
  • cdce8p (3)
  • luccabb (2)
  • rz-deepan (2)

Top Issue Labels

  • Stale (77)
  • invalid (8)
  • help wanted (1)

Top Pull Request Labels

  • Stale (32)
  • invalid (6)

Package metadata

pkgsrc-netbsd-x86_64-10.1-all: textproc/py-orjson

Fast, correct Python JSON library

  • Homepage: https://github.com/ijl/orjson
  • Documentation: https://pkgsrc.se/textproc/py-orjson
  • Licenses: apache-2.0 AND mit AND mpl-2.0
  • Latest release: 3.11.7 (published 6 months ago)
  • Last Synced: 2026-05-27T10:22:47.778Z (3 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 0.197%
    • Stargazers count: 0.285%
    • Forks count: 0.502%
pypi.org: orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

alpine-v3.18: py3-orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.8.14-r0 (published over 3 years ago)
  • Last Synced: 2026-04-01T03:39:47.363Z (5 months ago)
  • Versions: 3
  • Dependent Packages: 1
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 2.878%
    • Stargazers count: 3.227%
    • Forks count: 8.284%
  • Maintainers (1)
alpine-v3.18: py3-orjson-pyc

Precompiled Python bytecode for py3-orjson

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.8.14-r0 (published over 3 years ago)
  • Last Synced: 2026-04-11T22:05:12.201Z (5 months ago)
  • Versions: 3
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 2.878%
    • Stargazers count: 3.227%
    • Forks count: 8.284%
  • Maintainers (1)
alpine-edge: py3-orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.11.9-r0 (published 3 months ago)
  • Last Synced: 2026-05-27T09:37:32.390Z (3 months ago)
  • Versions: 43
  • Dependent Packages: 1
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Stargazers count: 3.346%
    • Average: 4.753%
    • Dependent packages count: 6.031%
    • Forks count: 9.635%
  • Maintainers (1)
alpine-edge: py3-orjson-pyc

Precompiled Python bytecode for py3-orjson

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.11.9-r0 (published 3 months ago)
  • Last Synced: 2026-05-27T09:37:33.733Z (3 months ago)
  • Versions: 38
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Stargazers count: 3.332%
    • Average: 6.755%
    • Forks count: 9.555%
    • Dependent packages count: 14.133%
  • Maintainers (1)
conda-forge.org: orjson

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0
  • Latest release: 3.8.1 (published almost 4 years ago)
  • Last Synced: 2026-07-26T03:00:45.813Z (about 1 month ago)
  • Versions: 50
  • Dependent Packages: 29
  • Dependent Repositories: 12
  • Downloads: 5,098,558 Total
  • Rankings:
    • Dependent packages count: 2.291%
    • Stargazers count: 5.206%
    • Average: 7.942%
    • Dependent repos count: 10.127%
    • Forks count: 14.145%
pypi.org: orjson-enum-names

  • Homepage: https://github.com/ijl/orjson
  • Documentation: https://orjson-enum-names.readthedocs.io/
  • Licenses: apache-2.0
  • Latest release: 0.0.0 (published over 4 years ago)
  • Last Synced: 2026-08-24T13:49:14.864Z (2 days ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 1
  • Downloads: 16 Last month
  • Rankings:
    • Stargazers count: 0.427%
    • Forks count: 3.738%
    • Dependent packages count: 7.373%
    • Average: 18.727%
    • Dependent repos count: 22.233%
    • Downloads: 59.866%
  • Maintainers (1)
anaconda.org: orjson

orjson is a fast, correct JSON library for Python. It benchmarks as the fastest Python library for JSON and is more correct than the standard json library or other third-party libraries. It serializes dataclass, datetime, numpy, and UUID instances natively.

  • Homepage: https://github.com/ijl/orjson
  • Licenses: MPL-2.0 AND (Apache-2.0 OR MIT)
  • Latest release: 3.11.9 (published about 1 month ago)
  • Last Synced: 2026-07-27T12:05:00.989Z (about 1 month ago)
  • Versions: 9
  • Dependent Packages: 8
  • Dependent Repositories: 12
  • Downloads: 17,278 Total
  • Rankings:
    • Dependent packages count: 4.055%
    • Stargazers count: 12.104%
    • Average: 19.482%
    • Forks count: 25.2%
    • Dependent repos count: 36.57%
pypi.org: hyperlight-hyperjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy with subinterpreter support

  • Homepage:
  • Documentation: https://hyperlight-hyperjson.readthedocs.io/
  • Licenses: Apache-2.0 OR MIT
  • Latest release: 0.1.12 (published 8 months ago)
  • Last Synced: 2026-08-24T13:48:34.232Z (2 days ago)
  • Versions: 3
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Downloads: 182 Last month
  • Rankings:
    • Dependent packages count: 8.115%
    • Average: 26.998%
    • Dependent repos count: 45.881%
  • Maintainers (1)
spack.io: py-orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy.

  • Homepage: https://github.com/ijl/orjson
  • Licenses: []
  • Latest release: 3.11.5 (published 13 days ago)
  • Last Synced: 2026-08-24T13:48:58.194Z (2 days ago)
  • Versions: 7
  • Dependent Packages: 2
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Average: 28.636%
    • Dependent packages count: 57.271%
  • Maintainers (1)
nixpkgs-24.05: python312Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

alpine-v3.19: py3-orjson-pyc

Precompiled Python bytecode for py3-orjson

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.9.10-r0 (published almost 3 years ago)
  • Last Synced: 2026-04-01T03:25:13.122Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
alpine-v3.23: py3-orjson-pyc

Precompiled Python bytecode for py3-orjson

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.10.18-r0 (published over 1 year ago)
  • Last Synced: 2026-04-09T12:05:43.770Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
alpine-v3.21: py3-orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.10.12-r0 (published almost 2 years ago)
  • Last Synced: 2026-04-01T01:46:01.647Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
alpine-v3.20: py3-orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.10.1-r0 (published over 2 years ago)
  • Last Synced: 2026-04-10T18:03:35.156Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
alpine-v3.19: py3-orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.9.10-r0 (published almost 3 years ago)
  • Last Synced: 2026-04-01T03:25:14.774Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
alpine-v3.22: py3-orjson-pyc

Precompiled Python bytecode for py3-orjson

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.10.18-r0 (published over 1 year ago)
  • Last Synced: 2026-04-01T01:57:01.895Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
alpine-v3.22: py3-orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.10.18-r0 (published over 1 year ago)
  • Last Synced: 2026-04-01T01:57:01.470Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
gentoo-portage: dev-python/orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

  • Homepage: https://github.com/ijl/orjson/
  • Documentation: https://packages.gentoo.org/packages/dev-python/orjson
  • Licenses: || ( Apache-2.0 MIT ) Apache-2.0-with-LLVM-exceptions BSD Boost-1.0 MIT Unicode-3.0
  • Latest release: 3.11.9 (published 4 months ago)
  • Last Synced: 2026-07-25T07:00:14.546Z (about 1 month ago)
  • Versions: 2
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
nixpkgs-24.11: python311Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

alpine-v3.23: py3-orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.10.18-r0 (published over 1 year ago)
  • Last Synced: 2026-04-13T20:05:09.218Z (4 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
nixpkgs-24.11: python312Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

nixpkgs-unstable: python314Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

nixpkgs-24.05: python311Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

nixpkgs-unstable: python313Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

openbsd-7.9-amd64: textproc/py-orjson

fast, correct Python JSON library

  • Homepage: https://github.com/ijl/orjson
  • Licenses: apache-2.0
  • Latest release: 3.11.4 (published 4 months ago)
  • Last Synced: 2026-05-28T01:10:22.242Z (3 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
ubuntu-24.10: python-orjson

  • Homepage: https://github.com/ijl/orjson/
  • Licenses: apache-2.0
  • Latest release: 3.9.15-1 (published 6 months ago)
  • Last Synced: 2026-07-30T04:01:24.772Z (28 days ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
nixpkgs-23.05: python311Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

guix: python-orjson

Python JSON library supporting dataclasses, datetimes, and numpy

nixpkgs-23.05: python310Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

nixpkgs-23.11: python310Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

debian-13: python-orjson

  • Homepage: https://github.com/ijl/orjson/
  • Documentation: https://packages.debian.org/trixie/python-orjson
  • Licenses: apache-2.0
  • Latest release: 3.10.7-2 (published 7 months ago)
  • Last Synced: 2026-03-14T15:29:31.173Z (6 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
alpine-v3.20: py3-orjson-pyc

Precompiled Python bytecode for py3-orjson

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.10.1-r0 (published over 2 years ago)
  • Last Synced: 2026-04-10T18:03:13.521Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
alpine-v3.21: py3-orjson-pyc

Precompiled Python bytecode for py3-orjson

  • Homepage: https://github.com/ijl/orjson
  • Licenses: Apache-2.0 AND MIT
  • Latest release: 3.10.12-r0 (published almost 2 years ago)
  • Last Synced: 2026-04-01T01:42:45.621Z (5 months ago)
  • Versions: 1
  • Dependent Packages: 0
  • Dependent Repositories: 0
  • Rankings:
    • Dependent repos count: 0.0%
    • Dependent packages count: 0.0%
    • Average: 100%
  • Maintainers (1)
nixpkgs-23.11: python311Packages.orjson

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy


Dependencies

.github/workflows/lint.yaml actions
  • actions/checkout v7 composite
  • actions/setup-python v7 composite
Cargo.lock cargo
  • associative-cache 3.0.1
  • bytecount 0.6.9
  • cc 1.4.3
  • cfg-if 1.0.4
  • encoding_rs 0.8.35
  • find-msvc-tools 0.1.11
  • gimli 0.34.0
  • itoap 1.0.1
  • jiff-core 0.1.0
  • libc 0.2.189
  • no-panic 0.1.37
  • once_cell 1.21.4
  • proc-macro2 1.0.107
  • pyo3-build-config 0.28.3
  • pyo3-ffi 0.28.3
  • quote 1.0.47
  • shlex 2.0.1
  • simdutf8 0.1.5
  • syn 3.0.3
  • target-lexicon 0.13.5
  • unicode-ident 1.0.24
  • unwinding 0.2.10
  • xxhash-rust 0.8.18
  • zmij 1.0.23
pyproject.toml pypi
requirements.txt pypi
  • maturin >=1.10,<2
.github/workflows/artifact.yaml actions
  • ./.github/actions/manylinux * composite
  • actions/checkout v7 composite
  • actions/download-artifact v8 composite
  • actions/setup-python v7 composite
  • actions/upload-artifact v7 composite
  • dtolnay/rust-toolchain master composite
  • pypa/gh-action-pypi-publish release/v1 composite
.github/workflows/unusual.yaml actions
  • actions/checkout v7 composite
  • actions/setup-python v7 composite
Cargo.toml cargo
test/requirements.txt pypi
  • faker * test
  • numpy * test
  • pendulum * test
  • psutil * test
  • pytest * test
  • python-dateutil >=2,<3 test
  • pytz * test
.github/actions/manylinux/action.yaml actions
bench/requirements.txt pypi
  • memory-profiler *
  • pandas *
  • pytest-benchmark *
  • pytest-random-order *
  • seaborn *
  • tabulate *
integration/requirements.txt pypi
  • flask *
  • gunicorn *
  • httpx ==0.28.1
requirements-lint.txt pypi
  • mypy ==2.3.0
  • ruff ==0.16.2