orjson

What it is

orjson is a high-performance JSON parser and generator written in Rust. It offers significant speed improvements over the standard json module in Python, making it ideal for applications where performance is critical.

orjson stands out as one of the fastest Python libraries for JSON processing, offering significant speed improvements without sacrificing correctness.

When it fits — and when it doesn’t

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

1. 01

   Limited language support

   orjson is primarily designed for Python and lacks native support for other languages, limiting its use in polyglot environments.

2. 02

   Complex setup for non-standard configurations

   Setting up orjson in complex or non-standard Python environments (like embedded systems) can be challenging due to Rust dependencies and compilation requirements.

3. 03

   Small community support

   The community around orjson is relatively small compared to more established JSON libraries, which may result in slower resolution of issues and fewer resources for troubleshooting.

What it does well

• High performance JSON parsing and generation

• Written in Rust for speed

• Supports Python's datetime objects directly

Pricing

Free tier

YesOpen source — free to use

Paid from

$0

Model

Flat rate

Enterprise plan

No

Pricing not independently confirmed — check the vendor’s page.