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base64ToUint8Array

Convert a Base64-encoded string to a Uint8Array.

Usage

import base64ToUint8Array from 'https://cdn.jsdelivr.net/gh/stdlib-js/string-base-base64-to-uint8array@deno/mod.js';

base64ToUint8Array( str )

Converts a base64-encoded string to a Uint8Array.

import string2buffer from 'https://cdn.jsdelivr.net/gh/stdlib-js/buffer-from-string@deno/mod.js';

var str = string2buffer( 'Hello World!' ).toString( 'base64' );
// returns 'SGVsbG8gV29ybGQh'

var out = base64ToUint8Array( str );
// returns <Uint8Array>[ 72, 101, ... ]

Notes

The function returns null when provided a string containing non-ASCII characters.

Examples

import string2buffer from 'https://cdn.jsdelivr.net/gh/stdlib-js/buffer-from-string@deno/mod.js';
import base64ToUint8Array from 'https://cdn.jsdelivr.net/gh/stdlib-js/string-base-base64-to-uint8array@deno/mod.js';

var buf = string2buffer( 'Hello World!' ).toString( 'base64' );
// returns 'SGVsbG8gV29ybGQh'

var arr = base64ToUint8Array( buf );
// returns <Uint8Array>

buf = string2buffer( 'HELLO WORLD!' ).toString( 'base64' );
// returns 'SEVMTE8gV09STEQh'

arr = base64ToUint8Array( buf );
// returns <Uint8Array>

buf = string2buffer( 'To be, or not to be: that is the question.' ).toString( 'base64' );
// returns 'VG8gYmUsIG9yIG5vdCB0byBiZTogdGhhdCBpcyB0aGUgcXVlc3Rpb24u'

arr = base64ToUint8Array( buf );
// returns <Uint8Array>

Notice

This package is part of stdlib, a standard library 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 © 2016-2025. The Stdlib Authors.

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