How to convert WebM to MP3
- 1
Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
- 2
Convert WebM to MP3
NexMedia converts WebM to MP3 on its own servers. Processing time depends on the file size and how busy the queue is.
- 3
Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About WebM
WebM is an open, royalty-free video format developed by Google and based on the Matroska container. It holds VP8, VP9 or AV1 video with Vorbis or Opus audio.
It is made for the web: all major browsers play it in the HTML video element, and it is common for screen recordings and short clips.
WebM allows only its own small set of codecs, so H.264 video or AAC audio has to be re-encoded to fit.
Convert WebM to MP3 online free, no account required — MP3 is a universally supported lossy audio format.
Change WebM to MP3 without losing quality — convert WebM to MP3 free in your browser.
Why can't I upload my WebM video to Instagram or TikTok? Social apps almost always demand MP4, so a WebM made for the web needs converting before it will upload.
About MP3
MP3 (MPEG-1 Audio Layer III) is a lossy audio format from the early 1990s. It removes the sound listeners are least likely to notice, typically at 128 to 320 kbit/s.
It plays on virtually every device and app, which makes it the default for music files, podcasts and audiobooks.
MP3 tops out at 320 kbit/s and two channels, and every re-encode removes a little more detail.
Why convert music to MP3? Every device, car stereo and app made in the last 25 years plays it, so nothing and nobody is left out.
What changes when you convert WebM to MP3
- The soundtrack of the WebM is re-encoded as MP3 at the default settings, so it is close to the original but not bit-identical.
- Only the sound is kept: the MP3 file contains the audio track of your WebM, and the picture is dropped.
Settings you can change
Before you convert WebM to MP3, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted MP3 file is kept for 2 hours, then deleted.
WebM to MP3: questions and answers
Does converting WebM to MP3 reduce quality?
The soundtrack of the WebM is re-encoded as MP3 at the default settings, so it is close to the original but not bit-identical.
What is the difference between WebM and MP3?
WebM is an open, royalty-free web video format with VP8, VP9 or AV1 video and Opus or Vorbis audio. MP3 is a universally supported lossy audio format.
Can I change the settings when converting WebM to MP3?
Before you convert WebM to MP3, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert WebM to MP3?
No. You can convert WebM to MP3 without an account; signing in raises the file-size and daily limits.
How long is my converted MP3 file kept?
The MP3 file you convert from WebM is kept for 2 hours, then deleted automatically.
When I convert WebM to MP3, can I keep just the sound?
Only the sound is kept: the MP3 file contains the audio track of your WebM, and the picture is dropped.
Will converting WebM to MP3 change my original file?
No. The conversion reads your WebM and writes a new MP3 file, leaving your original WebM file untouched.