wav2mp3
English

Licenses

wav2mp3 encodes MP3 with lamejs, a JavaScript port of the LAME MP3 encoder. lamejs is free software distributed under the GNU Lesser General Public License. It is loaded by this site as a separate, unmodified file, so you can replace it with your own build: its full source is linked below.

wav2mp3 は MP3 のエンコードに LAME を JavaScript に移植した lamejs を使っています。lamejs は GNU LGPL のもとで配布されている フリーソフトウェアで、このサイトでは改変せずに別ファイルとして読み込んでいます。

Third-party software

lamejs 1.2.1Pure JavaScript MP3 encoder, a port of LAME, by Alex Zhukov and contributors
License: GNU LGPL (package: LGPL-3.0; source headers: LGPL 2.1 or later)
github.com/zhuker/lamejs
Unmodified copy served here: lame.min.js, readable source: lame.all.js
LAMEThe MP3 encoder lamejs is ported from, by the LAME project
License: GNU LGPL
lame.sourceforge.io

License texts

MP3 patents

The patents on MP3 encoding have expired (the last ones in 2017), so encoding MP3 needs no patent license.

This site

The rest of wav2mp3 (page design, conversion and ZIP code) is © 2026 toromonja. The site uses no web fonts, no analytics and no third-party scripts.