Convert WEBM to AAC offline by JavaScript

Convert WEBM to AAC offline

Convert local WEBM files to AAC files offline by JavaScript in your web browser without any software downloads or file uploads!

Files:

Target:

Audio bitrate:

Sample rate:

Show conversion logs

OUTPUT FILES:

#	File Name	File Size	Actions

How to convert WEBM to AAC offline

Choose local WEBM files, choose "AAC" as target audio format, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. File size can be up to 2GB. Please note this offline audio converter only works in web browsers that support new technologies such as WebAssembly, Shared Array Buffer and Site Isolation.

Name	WEBM	AAC
Full name	HTML5 Video	Advanced Audio Coding
File extension	.webm	.aac
MIME	video/webm, audio/webm	audio/aac
Developed by	Google	Bell Labs, Fraunhofer Institute etc.
Type of format	Video file format	Audio compression format
Introduction	WebM is a video file format. It is primarily intended to offer a royalty-free alternative to use in the HTML5 video tag. It has a sister project WebP for images. The development of the format is sponsored by Google, and the corresponding software is distributed under a BSD license.	Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications.