nushell/docs/commands/hash_base64.md

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---
title: hash base64
layout: command
version: 0.59.0
---
base64 encode or decode a value
## Signature
```> hash base64 ...rest --character-set --encode --decode```
## Parameters
- `...rest`: optionally base64 encode / decode data by column paths
- `--character-set {string}`: specify the character rules for encoding the input.
Valid values are 'standard', 'standard-no-padding', 'url-safe', 'url-safe-no-padding','binhex', 'bcrypt', 'crypt'
- `--encode`: encode the input as base64. This is the default behavior if not specified.
- `--decode`: decode the input from base64
## Examples
Base64 encode a string with default settings
```shell
> echo 'username:password' | hash base64
```
Base64 encode a string with the binhex character set
```shell
> echo 'username:password' | hash base64 --character_set binhex --encode
```
Base64 decode a value
```shell
> echo 'dXNlcm5hbWU6cGFzc3dvcmQ=' | hash base64 --decode
```