atob

Decode a string of data which has been encoded using Base64 encoding.

Installation

npm install @stdlib/string-base-atob

Usage

var atob = require( '@stdlib/string-base-atob' );

atob( str )

Decodes a string of data which has been encoded using Base64 encoding.

var out = atob( 'SGVsbG8sIHdvcmxk' );
// returns 'Hello, world'

Notes

• This function differs from the global atob available in web browsers and more recent Node.js versions in that the function returns null when provided a string containing non-ASCII characters, rather than raising an exception.

Examples

var atob = require( '@stdlib/string-base-atob' );

var str = 'SGVsbG8gV29ybGQh';
var out = atob( str );
// returns 'Hello World!'

str = 'SEVMTE8gV09STEQh';
out = atob( str );
// returns 'HELLO WORLD!'

str = 'VG8gYmUsIG9yIG5vdCB0byBiZTogdGhhdCBpcyB0aGUgcXVlc3Rpb24u';
out = atob( str );
// returns 'To be, or not to be: that is the question.'

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2026. The Stdlib Authors.