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⚠️ This is archived documentation for v0.31.

b64decode( input, [encoding] )

Decode the passed base64 encoded input string into the unencoded original string.

inputstringThe string to base64 decode.
encoding (optional)stringThe base64 encoding to use.
Available options are:
- "std": the standard encoding with = padding chars and + and / characters in encoding alphabet. This is the default.
- "rawstd": like std but without = padding characters.
- "url": URL safe version of std, encoding alphabet doesn't contain + and / characters, but rather - and _ characters.
- "rawurl": like url but without = padding characters.


stringThe base64 decoded version of the input string.


import { check } from 'k6';
import encoding from 'k6/encoding';
export default function () {
const str = 'hello world';
const enc = 'aGVsbG8gd29ybGQ=';
check(null, {
'is encoding correct': () => encoding.b64encode(str) === enc,
'is decoding correct': () => encoding.b64decode(enc) === str,