WEBM to M4A - Convert audio online

Conversion Results:
# Output File Source File Action
How to convert WEBM to M4A:

1. Click the "Choose Files" button to select multiple files from your local device, or click the "URL" button to choose an online file. The source file can also be video format. Video and audio file size can be up to 200M. You can use the file analyzer to get the source audio's detailed information such as track name, genre, bitrate, and sampling rate.

2. Set the target audio format, bitrate, and sample rate. The target audio format can be WAV, WMA, MP3, OGG, AAC, AU, FLAC, M4A, MKA, AIFF, OPUS, or RA.

3. Click the "Convert Now!" button to start batch conversion. It will automatically retry conversion on another server if one fails; please be patient while converting. The output files will be listed in the "Conversion Results" section. Click the icon to show the file QR code or save the file to cloud storage services such as Google Drive or Dropbox.

WEBM vs M4A:
Name WEBM M4A
Full name HTML5 Video Audio-only MPEG-4
File extension .webm .m4a
MIME video/webm, audio/webm video/mp4
Developed by Google International Organization for Standardization
Type of format Video file format Media container
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. MPEG-4 Part 14 or MP4 is a digital multimedia container format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. M4A stands for MPEG 4 Audio and is a filename extension used to represent audio files.
Technical details The WebM container is based on a profile of Matroska. WebM initially supported VP8 video and Vorbis audio streams. In 2013 it was updated to accommodate VP9 video and Opus audio. Audio-only MPEG-4 files generally have a .m4a extension. This is especially true of non-protected content. M4A is often compressed using AAC encoding (lossy), but can also be in Apple Lossless format.
Associated programs VLC media player, MPlayer, K-Multimedia Player, Mozilla Firefox, Opera, Google Chrome, FFmpeg. Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player
Sample file sample.webm sample.m4a
Wikipedia WEBM on Wikipedia M4A on Wikipedia