Fast JSON schema for Python VS ultrajson

Compare Fast JSON schema for Python vs ultrajson and see what are their differences.

ultrajson

Ultra fast JSON decoder and encoder written in C with Python bindings (by ultrajson)
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Fast JSON schema for Python ultrajson
1 4
466 4,343
- 0.4%
6.1 6.9
5 days ago 4 days ago
Python C
BSD 3-clause "New" or "Revised" License GNU General Public License v3.0 or later
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Fast JSON schema for Python

Posts with mentions or reviews of Fast JSON schema for Python. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-03-31.
  • I wrote okjson - A fast, simple, and pythonic JSON Schema Validator
    8 projects | /r/Python | 31 Mar 2022
    I had a requirement to process and validate large payloads of JSON concurrently for a web service, initially I implemented it using jsonschema and fastjsonschema but I found the whole JSON Schema Specification to be confusing at times and on top of that wanted better performance. Albeit there are ways to compile/cache the schema, I wanted to move away from the schema specification so I wrote a validation library inspired by the design of tiangolo/sqlmodel (type hints) to solve this problem easier.

ultrajson

Posts with mentions or reviews of ultrajson. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-08-20.
  • orjson: Fast, correct Python JSON lib supporting dataclasses, datetimes, NumPy
    2 projects | news.ycombinator.com | 20 Aug 2024
    Written in Rust!

    TIL ujson is basically deprecated and they recommend switching to orjson https://github.com/ultrajson/ultrajson

    > UltraJSON's architecture is fundamentally ill-suited to making changes without risk of introducing new security vulnerabilities. As a result, this library has been put into a maintenance-only mode. Support for new Python versions will be added and critical bugs and security issues will still be fixed but all other changes will be rejected. Users are encouraged to migrate to orjson which is both much faster and less likely to introduce a surprise buffer overflow vulnerability in the future.

  • Processing JSON 2.5x faster than simdjson with msgspec
    5 projects | /r/Python | 3 Oct 2022
    ujson
  • Benchmarking Python JSON serializers - json vs ujson vs orjson
    2 projects | dev.to | 25 May 2022
    For most cases, you would want to go with python’s standard json library which removes dependencies on other libraries. On other hand you could try out ujsonwhich is simple replacement for python’s json library. If you want more speed and also want dataclass, datetime, numpy, and UUID instances and you are ready to deal with more complex code, then you can try your hands on orjson
  • The fastest tool for querying large JSON files is written in Python (benchmark)
    16 projects | news.ycombinator.com | 12 Apr 2022
    I asked about this on the Github issue regarding these benchmarks as well.

    I'm curious as to why libraries like ultrajson[0] and orjson[1] weren't explored. They aren't command line tools, but neither is pandas right? Is it perhaps because the code required to implement the challenges is large enough that they are considered too inconvenient to use through the same way pandas was used (ie, `python -c "..."`)?

    [0] https://github.com/ultrajson/ultrajson

What are some alternatives?

When comparing Fast JSON schema for Python and ultrajson you can also consider the following projects:

marshmallow - A lightweight library for converting complex objects to and from simple Python datatypes.

jsonschema - A high-performance JSON Schema validator for Rust

python-rapidjson - Python wrapper around rapidjson

cattrs - Composable custom class converters for attrs, dataclasses and friends.

greenpass-covid19-qrcode-decoder - An easy tool for decoding Green Pass Covid-19 QrCode

serpy - ridiculously fast object serialization

PyLD - JSON-LD processor written in Python

lupin is a Python JSON object mapper - Python document object mapper (load python object from JSON and vice-versa)

pysimdjson - Python bindings for the simdjson project.

hjson-py - Hjson for Python

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