身边的base64解码工具

Linux base64工具（带有-d标志用于解码）：

$ echo eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9 | base64 -d
 {"typ":"JWT","alg":"HS256"}

浏览器JavaScript控制台：

>> atob("eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9")
 "{"typ":"JWT","alg":"HS256"}"

Powershell:

PS C:> [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64Strin
g("eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9"))
{"typ":"JWT","alg":"HS256"}

Pyhton:

>>> import base64
>>> print(base64.b64decode('eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9'))
{"typ":"JWT","alg":"HS256"}