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Choose the WebM
Drop the WebM on the box above, or tap it to pick a file. Nothing is uploaded.
Convert WebM to MP3 for Free
Convert WebM to MP3 in seconds, right in your browser, with nothing uploaded.
Last updated
- Free, no sign-up
- Never leaves your device
- Works on your phone
How do I check the MP3 before I save it?
To convert WebM to MP3 for free, choose the WebM above, keep MP3 selected, and select Extract audio. Your browser reads the Opus sound, writes a 192 kbps MP3, and never uploads the file. Play the MP3 on this page before you download it.
Play it here first
A player appears under the download button. Skip to the end of a long recording to check the whole session came through.
Hear the room before you share it
If the pauses carry fan hum or keyboard noise, the page says so and offers a free noise removal preview.
Why convert WebM to MP3?
WebM is what browsers record in. It plays in Chrome and Firefox, but phones, car stereos, and many editors want MP3. Converting WebM to MP3 gives you a file that opens everywhere.
A screen recording you want to listen to
A Loom, a meeting, or a browser capture becomes audio you can play on a walk or send to a transcription tool.
A voice note recorded in the browser
Web recorders and messaging apps on the web often save WebM. An MP3 attaches to an email or a form that rejects WebM.
An editor that will not import it
Some versions of iMovie, Premiere, and Audacity refuse WebM or its Opus sound. MP3 imports without a plug-in.
Keyboard and fan noise in the recording
A laptop mic picks up the keys you type and the fan under them. Clean the audio before you publish it.
Remove keyboard and mouse clicksWhere do WebM files come from?
If a file ends in .webm, it was almost always recorded or saved by a browser. These are the usual sources, and what their sound is.
| Source | What it saves | Sound inside |
|---|---|---|
| Loom and browser screen recorders | WebM video | Opus |
| Google Meet and web meeting recorders | WebM video | Opus |
| OBS with a WebM preset | WebM video | Opus or Vorbis |
| Web voice recorders | WebM audio only | Opus |
| Videos saved from some sites | WebM video | Opus or Vorbis |
Why use EraseNoise to convert WebM to MP3?
It reads the sound out of the WebM and writes a standard MP3, and that is all it does.
Nothing is uploaded
The browser that recorded the WebM also converts it. A private meeting or a lesson stays on your device.
Long recordings are fine
Only the sound is read, so an hour-long screen recording does not have to fit in memory as video.
Free with no account
No sign-up, no watermark, and no limit on how many files you convert.
MP3, M4A, or WAV
MP3 is picked for you because it plays anywhere. Choose WAV if you plan to edit the audio, or M4A for a smaller file.
Why is it faster than an upload converter?
There is no upload and no queue. When you convert WebM to MP3 here, encoding the MP3 is the only work.
No upload wait
A 40-minute screen recording can be hundreds of megabytes. Upload sites make you send all of it before they start.
Works on a laptop or a phone
Open the page in Chrome, Edge, Firefox, or Safari, pick the WebM, and save the MP3.
No editor to open
You do not need a project or an export dialog to get the sound out of one recording.
Which WebM files can I convert?
Convert WebM to MP3 for files up to 2 GB. Other videos and audio files work too.
WebM video or WebM audio
Screen recordings, meeting recordings, and voice notes. The WebM needs a sound track; a silent capture has nothing to convert.
MP4, MOV, and M4V
The same box takes phone and camera video, so you can convert a whole folder of mixed recordings one by one.
MKV from OBS
Remux it to MP4 first in OBS with File, Remux Recordings. It takes seconds and does not touch the sound.
Files you are allowed to use
This page converts files on your device. It does not download from websites.
How to convert WebM to MP3
- 2
Keep MP3 selected
MP3 is picked for you. Switch to WAV for editing or M4A for a smaller file.
- 3
Extract and download
Select Extract audio, play the MP3 to check it, and download it.
Who converts WebM to MP3?
A team sharing a recorded meeting
Convert the WebM recording to MP3 so colleagues can listen on their phones without a video player.
A course creator with a Loom lesson
Turn the WebM into an MP3 for an audio-only version of the lesson, then remove keyboard clicks before posting it.
A journalist with a browser interview
Convert the call recording to MP3 and send it to a transcription service in seconds.
What to do after you convert WebM to MP3
Screen and meeting recordings often need one more step. Each runs on its own page.
| Job | Use |
|---|---|
| Fan hum, traffic, or room noise under the voice | Remove background noise from audio |
| The speaker is too quiet | Normalize audio (free, in the browser) |
| Long pauses while someone was typing | Remove silence from audio (free) |
| Keep the video, clean only its sound | Remove background noise from video |
Is my WebM uploaded?
No. To convert WebM to MP3, EraseNoise reads the file in your browser and writes the MP3 there too. No copy is sent to a server or stored, so refreshing the page clears the result. Download the MP3 before you leave.
Frequently asked questions
How do I convert WebM to MP3 for free?
Open this page, choose the WebM, keep MP3 selected, and select Extract audio. Your browser does the work, so it is free, needs no account, and adds no watermark.
Is my WebM file uploaded?
No. The WebM is read and the MP3 is written in your browser. Nothing is sent to EraseNoise or anyone else, which matters for a private meeting recording.
What quality is the MP3?
The MP3 is encoded at 192 kbps, which sounds the same as the Opus track in a typical screen or meeting recording. Choose WAV for an uncompressed copy to edit.
Can I convert a WebM audio file, not a video?
Yes. Audio-only WebM files from web voice recorders convert the same way. The page reads the sound track whatever the WebM holds.
Why will my editor not open WebM?
Many editors do not include a WebM or Opus decoder. Converting WebM to MP3 or WAV gives them a format they all read.
Can I convert a long recording?
Yes, up to 2 GB. Only the sound is decoded, so a long screen recording converts to MP3 without loading the video into memory. WAV is limited to 60 minutes.
Convert WebM to MP3 on this device
Choose one WebM recording. Play the MP3 before you save it, and nothing leaves your computer.
Choose a WebM