JavaScript library for writing ID3 tag to MP3 files in browsers and Node.js
npm install browser-id3-writer[![npm package][npm-badge]][npm]
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[npm]: https://www.npmjs.com/package/browser-id3-writer
JavaScript library for writing ID3 (v2.3) tag to MP3 files in browsers and Node.js.
It can't read the tag so use another lib to do it.
Note: the library removes existing ID3 tag (v2.2, v2.3 and v2.4).
Here is an online demonstration: egoroof.github.io/browser-id3-writer/
Find the changelog in CHANGELOG.md
- Installation
- JS modules
- Usage
- Browser
1. Get ArrayBuffer of song
2. Add a tag
3. Save file
4. Memory control
- Node.js
- Supported frames
- APIC picture types
- SYLT content types
- SYLT timestamp formats
Take latest version here or with npm:
``
npm install browser-id3-writer --save
The library is only deployed in native JS modules, so in browsers you have to use script with type module:
`html`
Or bundle the library to your code.
In Nodejs it imports easily:
`js`
import { ID3Writer } from 'browser-id3-writer';
#### Get ArrayBuffer of song
In browsers you should first get
ArrayBuffer
of the song you would like to add ID3 tag.
##### FileReader
For example you can create file input and use
FileReader:
`html`
##### Fetch
To get arrayBuffer from a remote server you can use
Fetch:
`jsUnable to fetch ${urlToSongFile}
const request = await fetch(urlToSongFile);
if (!request.ok) {
// handle error
console.error();`
}
const arrayBuffer = await request.arrayBuffer();
// go next
#### Add a tag
Create a new ID3Writer instance with arrayBuffer of your song, set frames and add a tag:
`js`
// arrayBuffer of song or empty arrayBuffer if you just want only id3 tag without song
const writer = new ID3Writer(arrayBuffer);
writer
.setFrame('TIT2', 'Home')
.setFrame('TPE1', ['Eminem', '50 Cent'])
.setFrame('TALB', 'Friday Night Lights')
.setFrame('TYER', 2004)
.setFrame('TRCK', '6/8')
.setFrame('TCON', ['Soundtrack'])
.setFrame('TBPM', 128)
.setFrame('WPAY', 'https://google.com')
.setFrame('TKEY', 'Fbm')
.setFrame('APIC', {
type: 3,
data: coverArrayBuffer,
description: 'Super picture',
});
writer.addTag();
#### Save file
Now you can save it to file as you want:
`js`
const taggedSongBuffer = writer.arrayBuffer;
const blob = writer.getBlob();
const url = writer.getURL();
For example you can save file using FileSaver.js:
`js`
saveAs(blob, 'song with tags.mp3');
If you are writing chromium extension you can save file using
Downloads API:
`js`
chrome.downloads.download({
url: url,
filename: 'song with tags.mp3',
});
#### Memory control
When you generate URLs via writer.getURL() you should know
that whole file is kept in memory until you close the page or move to another one.
So if you generate lots of URLs in a single page you should manually free memory
after you finish downloading file:
`js`
URL.revokeObjectURL(url); // if you know url or
writer.revokeURL(); // if you have access to writer
Simple example with blocking IO:
`js
import { ID3Writer } from 'browser-id3-writer';
import { readFileSync, writeFileSync } from 'fs';
const songBuffer = readFileSync('path_to_song.mp3');
const coverBuffer = readFileSync('path_to_cover.jpg');
const writer = new ID3Writer(songBuffer);
writer
.setFrame('TIT2', 'Home')
.setFrame('TPE1', ['Eminem', '50 Cent'])
.setFrame('TALB', 'Friday Night Lights')
.setFrame('TYER', 2004)
.setFrame('APIC', {
type: 3,
data: coverBuffer,
description: 'Super picture',
});
writer.addTag();
const taggedSongBuffer = Buffer.from(writer.arrayBuffer);
writeFileSync('song_with_tags.mp3', taggedSongBuffer);
`
You can also create only ID3 tag without song and use it as you want:
`js`
const writer = new ID3Writer(Buffer.alloc(0));
writer.padding = 0; // default 4096
writer.setFrame('TIT2', 'Home');
writer.addTag();
const id3Buffer = Buffer.from(writer.arrayBuffer);
array of strings:
- TPE1 (song artists)
- TCOM (song composers)
- TCON (song genres)
string
- TLAN (language)
- TIT1 (content group description)
- TIT2 (song title)
- TIT3 (song subtitle)
- TALB (album title)
- TPE2 (album artist)
- TPE3 (conductor/performer refinement)
- TPE4 (interpreted, remixed, or otherwise modified by)
- TRCK (song number in album): '5' or '5/10'
- TPOS (album disc number): '1' or '1/3'
- TPUB (label name)
- TKEY (initial key)
- TMED (media type)
- TDAT (album release date expressed as 'DDMM')
- TSRC (isrc - international standard recording code)
- TSSE (software/hardware and settings used for encoding)
- TCOP (copyright message)
- TCMP (iTunes compilation flag)
- TEXT (lyricist / text writer)
- WCOM (commercial information)
- WCOP (copyright/Legal information)
- WOAF (official audio file webpage)
- WOAR (official artist/performer webpage)
- WOAS (official audio source webpage)
- WORS (official internet radio station homepage)
- WPAY (payment)
- WPUB (publishers official webpage)
integer
- TLEN (song duration in milliseconds)
- TYER (album release year)
- TBPM (beats per minute)
object
- COMM (comments):
`js`
writer.setFrame('COMM', {
description: 'description here',
text: 'text here',
language: 'eng',
});
- USLT (unsychronised lyrics):
`js`
writer.setFrame('USLT', {
description: 'description here',
lyrics: 'lyrics here',
language: 'eng',
});
- IPLS (involved people list):
`js`
writer.setFrame('IPLS', [
['role', 'name'],
['role', 'name'],
// ...
]);
- SYLT (synchronised lyrics):
`js`
writer.setFrame('SYLT', {
type: 1,
text: [
['lyrics here', 0],
['lyrics here', 3500],
// ...
],
timestampFormat: 2,
language: 'eng',
description: 'description',
});
text is an array of arrays of string and integer.
- TXXX (user defined text):
`js`
writer.setFrame('TXXX', {
description: 'description here',
value: 'value here',
});
- PRIV (private frame):
`js`
writer.setFrame('PRIV', {
id: 'identifier',
data: dataArrayBuffer,
});
- APIC (attached picture):
`js`
writer.setFrame('APIC', {
type: 3,
data: coverArrayBuffer,
description: 'description here',
useUnicodeEncoding: false,
});
useUnicodeEncoding should only be true when description contains non-Western characters.true` some program might not be able to read the picture correctly.
When it's set to
See #42.
| Type | Name |
| ---- | ----------------------------------- |
| 0 | Other |
| 1 | 32x32 pixels 'file icon' (PNG only) |
| 2 | Other file icon |
| 3 | Cover (front) |
| 4 | Cover (back) |
| 5 | Leaflet page |
| 6 | Media (e.g. label side of CD) |
| 7 | Lead artist/lead performer/soloist |
| 8 | Artist/performer |
| 9 | Conductor |
| 10 | Band/Orchestra |
| 11 | Composer |
| 12 | Lyricist/text writer |
| 13 | Recording location |
| 14 | During recording |
| 15 | During performance |
| 16 | Movie/video screen capture |
| 17 | A bright coloured fish |
| 18 | Illustration |
| 19 | Band/artist logotype |
| 20 | Publisher/Studio logotype |
| Type | Name |
| ---- | -------------------------------------------- |
| 0 | Other |
| 1 | Lyrics |
| 2 | Text transcription |
| 3 | Movement/part name (e.g. "Adagio") |
| 4 | Events (e.g. "Don Quijote enters the stage") |
| 5 | Chord (e.g. "Bb F Fsus") |
| 6 | Trivia/'pop up' information |
| Type | Name |
| ---- | ------------------------------------------------------- |
| 1 | Absolute time, 32 bit sized, using MPEG frames as unit |
| 2 | Absolute time, 32 bit sized, using milliseconds as unit |