| Port variant | v13 |
| Summary | Fast, correct Python JSON library (3.13) |
| Package version | 3.11.7 |
| Homepage | https://github.com/ijl/orjson |
| Keywords | python, rust |
| Maintainer | Python Automaton |
| License | Not yet specified |
| Other variants | v14 |
| Ravenports | Buildsheet | History |
| Ravensource | Port Directory | History |
| Last modified | 08 FEB 2026, 17:02:33 UTC |
| Port created | 08 JAN 2023, 04:18:24 UTC |
| single | 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. Its features and drawbacks compared to other Python JSON libraries: - serializes dataclass instances 40-50x as fast as other libraries - serializes datetime, date, and time instances to RFC 3339 format, e.g., "1970-01-01T00:00:00+00:00" - serializes numpy.ndarray instances 4-12x as fast with 0.3x the memory usage of other libraries - pretty prints 10x to 20x as fast as the standard library - serializes to bytes rather than str, i.e., is not a drop-in replacement - serializes str without escaping unicode to ASCII, e.g., "???" rather than "\\u597d" - serializes float 10x as fast and deserializes 2x faster than other libs - serializes subclasses of str, int, list, and dict natively, requiring default to specify how to serialize others - serializes arbitrary types using a default hook - has strict UTF-8 conformance, more correct than the standard library - has strict JSON conformance in not supporting Nan/Infinity/-Infinity - has an option for strict JSON conformance on 53-bit integers with default support for 64-bit - does not provide load() or dump() functions for reading from/writing to file-like objects |
| main | mirror://PYPI/o/orjson |
| cr01 | mirror://CRATES/associative-cache:2.0.0 |
| cr02 | mirror://CRATES/bytecount:0.6.9 |
| cr03 | mirror://CRATES/bytes:1.11.0 |
| cr04 | mirror://CRATES/cc:1.2.55 |
| cr05 | mirror://CRATES/cfg-if:1.0.4 |
| cr06 | mirror://CRATES/crunchy:0.2.4 |
| cr07 | mirror://CRATES/encoding_rs:0.8.35 |
| cr08 | mirror://CRATES/find-msvc-tools:0.1.9 |
| cr09 | mirror://CRATES/gimli:0.32.3 |
| cr10 | mirror://CRATES/half:2.7.1 |
| cr11 | mirror://CRATES/itoa:1.0.17 |
| cr12 | mirror://CRATES/itoap:1.0.1 |
| cr13 | mirror://CRATES/jiff:0.2.18 |
| cr14 | mirror://CRATES/jiff-static:0.2.18 |
| cr15 | mirror://CRATES/libc:0.2.180 |
| cr16 | mirror://CRATES/memchr:2.7.6 |
| cr17 | mirror://CRATES/no-panic:0.1.36 |
| cr18 | mirror://CRATES/once_cell:1.21.3 |
| cr19 | mirror://CRATES/portable-atomic:1.13.1 |
| cr20 | mirror://CRATES/portable-atomic-util:0.2.5 |
| cr21 | mirror://CRATES/proc-macro2:1.0.106 |
| cr22 | mirror://CRATES/pyo3-build-config:0.28.0 |
| cr23 | mirror://CRATES/pyo3-ffi:0.28.0 |
| cr24 | mirror://CRATES/quote:1.0.44 |
| cr25 | mirror://CRATES/serde:1.0.228 |
| cr26 | mirror://CRATES/serde_core:1.0.228 |
| cr27 | mirror://CRATES/serde_derive:1.0.228 |
| cr28 | mirror://CRATES/serde_json:1.0.149 |
| cr29 | mirror://CRATES/shlex:1.3.0 |
| cr30 | mirror://CRATES/simdutf8:0.1.5 |
| cr31 | mirror://CRATES/smallvec:1.15.1 |
| cr32 | mirror://CRATES/syn:2.0.114 |
| cr33 | mirror://CRATES/target-lexicon:0.13.4 |
| cr34 | mirror://CRATES/unicode-ident:1.0.22 |
| cr35 | mirror://CRATES/unwinding:0.2.8 |
| cr36 | mirror://CRATES/uuid:1.20.0 |
| cr37 | mirror://CRATES/version_check:0.9.5 |
| cr38 | mirror://CRATES/xxhash-rust:0.8.15 |
| cr39 | mirror://CRATES/zerocopy:0.8.37 |
| cr40 | mirror://CRATES/zerocopy-derive:0.8.37 |
| cr41 | mirror://CRATES/zmij:1.0.19 |
| No other ports depend on this one. |