strip-bom

Strip UTF-8 byte order mark (BOM) from a string/buffer

strip-bom

Strip UTF-8 byte order mark (BOM) from a string/buffer

From Wikipedia:

The Unicode Standard permits the BOM in UTF-8, but does not require nor recommend its use. Byte order has no meaning in UTF-8.

$ npm install --save strip-bom
var fs = require('fs');
var stripBom = require('strip-bom');
 
stripBom('\uFEFFunicorn');
//=> 'unicorn' 
 
stripBom(fs.readFileSync('unicorn.txt'));
//=> 'unicorn' 

MIT © Sindre Sorhus