Decode JWT Token

[gsh1]

Dear all,

I am trying to decode a JWT token with the help of following command

GlideStringUtil.base64Decode

It desodes the code but it puts some garbage values at the end like 

#�cO���;ء�ԩpj�oa@9U��C�
X ��k�)�t
However when same token is decoded online from https://jwt.io/ site it gives correct result.
Any idea why I am getting garbage values or is there any other method also to decode jwt token?

[Ravi Kiran M]

Even I'm facing same issue... Any resolution to remove garbage ? And is this right way to decode JWT ?

[Michael Culhan1]

The garbage values at the end are the signature, which is encrypted.