go-playground / validator

:100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving

gookit / goutil

💪 Helper Utils(900+): int, byte, string, array/slice, map, struct, dump, convert/format, error, web/http, cli/flag, OS/ENV, filesystem, system, test/assert, time and more. Go 常用的工具函数：数字，字符串，数组，Map，结构体，反射，文本，文件，错误，时间日期，特殊处理，格式化，常用信息获取等等

asaskevich / govalidator

[Go] Package of validators and sanitizers for strings, numerics, slices and structs

stretchr / objx

Go package for dealing with maps, slices, JSON and other data.

blockloop / scan

Tiny lib to scan SQL rows directly to structs, slices, and primitive types