easyjson
Fast JSON serializer for Go applications
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is easyjson?
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.
Key differentiator
“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.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
Easyjson is specifically designed for Golang and does not support other languages, limiting its use to projects exclusively using Go.
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.
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.
Fit analysis
Who is it for?
✓ Best for
Developers working on high-performance web services who require fast and efficient JSON serialization.
Projects where the performance overhead of standard JSON libraries is a bottleneck.
Applications that need to handle large volumes of JSON data with minimal latency.
✕ Not a fit for
Projects requiring support for multiple programming languages beyond Go.
Scenarios where dynamic runtime configuration of JSON serialization options is necessary.
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Integrations
Next step
Get Started with easyjson
Step-by-step setup guide with code examples and common gotchas.