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Port of node-chardet in pure JavaScript without NodeJS specific code. Module is based on ICU project http://site.icu-project.org/, which uses character occurrence analysis to determine the most probable encoding.

Installation

npm i char-encoding-detector

yarn add char-encoding-detector

Usage

To return the encoding with the highest confidence:

import { detectEncoding, detectFileEncoding } from 'char-encoding-detector';
const encoding = detectEncoding(uint8Array);
// or
detectFileEncoding(file).then((encoding) => {});

To return the full list of possible encodings:

import { detectEncoding, detectFileEncoding } from 'char-encoding-detector';

const matches = detectEncoding(uint8Array, { allMatches: true });
// or
detectFileEncoding(file, { allMatches: true }).then((matches) => {});

Working with large data sets

Sometimes, when data set is huge and you want to optimize performance (in tradeoff of less accuracy), you can sample only first N bytes of the buffer.

Supported Encodings:

• UTF-8
• UTF-16 LE
• UTF-16 BE
• UTF-32 LE
• UTF-32 BE
• ISO-2022-JP
• ISO-2022-KR
• ISO-2022-CN
• Shift-JIS
• Big5
• EUC-JP
• EUC-KR
• GB18030
• ISO-8859-1
• ISO-8859-2
• ISO-8859-5
• ISO-8859-6
• ISO-8859-7
• ISO-8859-8
• ISO-8859-9
• windows-1250
• windows-1251
• windows-1252
• windows-1253
• windows-1254
• windows-1255
• windows-1256
• KOI8-R