Go: Is the encoding/json Package Really Slow?

Vincent Blanchon
May 20, 2019 · 6 min read
Illustration created for “A Journey With Go”, made from the original Go Gopher, created by Renee French.

ℹ️ This article is based on Go 1.12.

Questions about the performance of the encoding/json package is a recurrent topic and multiple libraries like easyjson, jsoniter or ffjson are trying to address this issue. But is it really slow? Has it been improved?

Evolution of the package