Fastest JSON Python module

Tip

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Run Python JSON benchmarks to find the fastest module that can be used as a drop-in replacement of the json standard one.

Benchmarks are run from a GitHub workflow.

See the requirements.txt file for exact modules being tested, and which imports are being used in the benchmark script.

Results

• 🐧 GNU/Linux
• 🍎 macOS
• 🪟 Windows

Not An Option

Incorrect Output

But they are still tested, in case their behavior changes over time.

• orjson
• pysimdjson

Not a Drop-In Replacement

• cysimdjson

No More Maintained

• hyperjson
• jsonlib2
• libpy_simdjson
• metamagic.json
• python-cjson
• yajl