easyjson

What it is

Easyjson is a fast and efficient JSON serialization library for Golang that optimizes performance by generating code at compile-time, making it ideal for high-performance web services.

Easyjson stands out by offering compile-time code generation, which significantly improves the performance of JSON serialization and deserialization compared to traditional libraries that operate at runtime.

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

   Easyjson is specifically designed for Golang and does not support other languages, limiting its use to projects exclusively using Go.

2. 02

   Complex setup process

   Setting up Easyjson requires understanding of both the library's configuration options and how to integrate it into a Go build pipeline, which can be non-trivial for new users or projects with complex dependencies.

3. 03

   Performance overhead during initial compile-time generation

   While runtime performance is optimized, the process of generating code at compile time can introduce significant build times, especially in large projects with many structs to serialize/deserialize.

What it does well

• Generates optimized code at compile-time for faster JSON serialization and deserialization.

• Supports complex data structures including nested structs, slices, maps, and interfaces.

• Offers customizable options to tailor the serialization process according to specific needs.

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.