orjson

Fast, correct JSON library for Python.

EstablishedOpen SourceLow lock-in

Pricing

See website

Flat rate

Adoption

Stable

License

Open Source

Data freshness

Overview

What is orjson?

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.

Key differentiator

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

Capability profile

Strength Radar

High performance…Written in Rust …Supports Python'…

Honest assessment

Strengths & Weaknesses

↑ Strengths

High performance JSON parsing and generation

Written in Rust for speed

Supports Python's datetime objects directly

Fit analysis

Who is it for?

✓ Best for

Developers working on high-performance Python applications that require frequent JSON operations

Projects needing to optimize the speed of JSON parsing and generation in their critical paths

✕ Not a fit for

Applications where simplicity is prioritized over performance

Scenarios where the overhead of integrating a new library outweighs potential performance gains

Cost structure

Pricing

Free Tier

None

Starts at

See website

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Next step

Get Started with orjson

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →