Convert M4B to WEBM online, for free.
Simply upload your M4B files and click the convert button. You can also batch convert M4B to WEBM format.
We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).
Our M4B to WEBM Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 2 hours.
MPEG-4 Audio Layer (M4B) is the file format that stores audiobooks and podcasts, primarily those that are available on iTunes. The cool thing about this file format is that, unlike MPEG-Audio Layer III (MP3), M4B can store digital bookmarks. This feature allows readers to pause and resume later, just like a physical bookmark in a printed book!
Developed by: Apple Inc.
Initial Release: 1999
WebM (WEBM) is a freely-licensed file container designed for the Web. Specifically, it was designed to be compatible with HTML5, originally. It supports chapters, captions, subtitles, metadata tags, streaming, attachments, 3D codecs, 3D containers, and hardware players. WEBM compresses video streams with VP8 or VP9 codecs, and audio with Vorbis or Opus codecs.
Initial release: 2010
FreeConvert.com can convert your other files to WEBM format:
FreeConvert.com can convert your M4B files to these other formats:
Want to convert large files without a queue or Ads?