Convert WebM to MP3 online. This conversion removes the picture from the WebM file and saves its audio track as MP3. Free batch processing with no signup or watermark.
Add one or more WebM files. You can review the complete batch before processing it.
MP3 is already selected for this page. Add multiple videos, choose the audio output and set a trim range when only part of the track is needed.
Start the batch, then download and check the finished MP3 file or files.
This conversion removes the picture from the WebM file and saves its audio track as MP3. Video resolution and frame rate do not carry into the result.
WebM is an open, royalty-free video format built for the web. It streams efficiently at small file sizes and is supported natively by modern browsers, which makes it ideal for online video and HTML5 players.
WebM plays in all current browsers (Chrome, Firefox, Edge) and VLC; older devices or editing software may need it converted to MP4.
MP3 is the world’s most popular audio format. Its lossy compression shrinks music and audio to a fraction of the original size while keeping quality good enough for almost any use, which is why it plays on virtually every device and app.
MP3 plays everywhere - any music app, browser, phone, car stereo, and the default player on Windows, macOS, Android and iOS.
ToolSpice can convert your WebM files to these other formats:
These other formats can be converted to MP3 on ToolSpice: