goccy/go-json

Health v2 · maintenance only

Adoption not part of the score

3705 stars · 215 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

goccy/go- is a fast JSON encoder/decoder library for Go that is a drop-in replacement for the standard encoding/ package. It maintains full API compatibility while offering significantly better performance and extra features like context propagation and type-safe field filtering.

Use cases

• speed up JSON serialization in a Go web service
• replace encoding/ without changing code
• marshal and unmarshal JSON faster in Go
• propagate context.Context through custom JSON marshalers
• dynamically filter struct fields when encoding JSON

When to choose

• you need encoding/ compatibility with better performance
• JSON encoding/decoding is a bottleneck in your Go application
• you want a drop-in import swap with no code changes

When to avoid

• you only serialize small JSON payloads where performance is irrelevant
• you need code generation-based serialization like easy
• you require the absolute guarantees of the standard library's battle-tested implementation

Facets

library · maturity active

serialization developer-tools backend apis go cross-platform -encoder -decoder drop-in-replacement performance encoding--compatible

Member repositories

For agents

markdown · JSON · MCP: product_card(name="goccy/go-json")