base64-advanced-cli

This command line interface helps you to encode/decode base64 data with advanced features like files encoding/decoding, jwt review and html image encoding.

Install

``
$ npm install --global base64-advanced-cli
`


... or just try it without installing it :
`
$ npx base64-advanced-cli -e "Hello World!"
`

... or try the Online Demo 💪

Usage

This CLI provides the following command : b64

`
88 ad8888ba, ,d8
88 8P' "Y8 ,d888
88 d8 ,d8" 88
88,dPPYba, 88,dd888bb, ,d8" 88
88P' "8a 88P' 8b ,d8" 88
88 d8 88 d8 8888888888888
88b, ,a8" 88a a8P 88
8Y"Ybbd8"' "Y88888P" 88


base64-advanced-client v1.x.x
Usage: b64 [options]

Options:
-d, --decode [data] set mode to encoding
-e, --encode [data] set mode to decoding
--web-safe use websafe substitution characters when encoding/decoding
-i, --input-file read input from a file
-o, --output-file write output to a file
-v, --version display the version of this CLI
--jwt display the content of a jwt token
--html encode an image into an html tag containing base64 data
--no-update-notification do not display update notifications
-h, --help display help for command
``

$3

#### Encoding :
`
$ b64 -e "Hello World!"
`
Will return SGVsbG8gV29ybGQh value.

The --web-safe argument will replace + by -, / by _ and remove the trailing equal signs (= or ==)

#### Decoding :

`
$ b64 -d SGVsbG8gV29ybGQh
`
Will return Hello World! value.


#### Writing output to a file :
`
$ b64 -d SGVsbG8gV29ybGQh -o decoded.txt
`

Will create a file named decoded.txt containingext " Hello world! " text, instead of displaying the output in the console.

#### Reading input from a file :
`
$ b64 -e -i decoded.txt
`
Will read file contents and encodode it, rather than using the command input.


#### Stdin usage
You can also read input from stdin _(only on unix systems)_ to encode & decode data
`
$ echo "Hello World!" | b64 -e
`
will return SGVsbG8gV29ybGQhCg==.

stdin is also applicable for decoding purposes
`
$ echo SGVsbG8gV29ybGQhCg== | b64 -d
`
will return Hello World!.
#### JWT Preview :
This CLI provides a simple way to preview the content of JWT tokens.
`
$ b64 --jwt eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYW1lIjoiSm9obiBEb2UiLCJpYXQiOjE1MTYyMzkwMjJ9.hqWGSaFpvbrXkOWc6lrnffhNWR19W_S1YKFBx2arWBk
`
will return the following output :
`
Header : {
"alg": "HS256",
"typ": "JWT"
}
Body : {
"name": "John Doe",
"iat": 1516239022
}
`
:warning: The CLI does NOT validate the signature of the token since this is not the purose of this tool.

#### HTML Image base 64 encoding :
You can use this CLI to directly encode your images as html base64 images (with automatic mime type dectection).
`
$ b64 -e --html -i image.png
`
Will return the html tag containing the encoded image in base 64 format (e.g. ).
`
$ b64 -e --html -i image.png -o image.html
``
Will perform the same operation but will save the image html content in a file rather than simply displaying the output.

Releases

Find all releases on npm : https://www.npmjs.com/package/base64-advanced-cli

:warning: Note

This library is still under development some changes may occur, great features incoming :muscle:.

Any improvement ideas are welcome, feel free to create issues for evolutions/bugs on the repository of the project.