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Convert WebM to MP3

Get the sound from WebM videos and browser recordings as an MP3.

Used by 500K+ people since 20215M+ minutes processed

More options

Free for the first hour, 10 times a day. No sign-up.

From WebM to MP3

Play WebM, then MP3.

WebM · 505 KBbecomesMP3 · 194 KB

Works in any language

  • Hello
  • こんにちは
  • Hola
  • 안녕하세요
  • Bonjour
  • नमस्ते
  • Hallo
  • 你好
  • Ciao
  • مرحبا
  • Olá
  • Привет
  • Hoi
  • สวัสดี
  • Merhaba
  • Γεια σας
  • Xin chào
  • שלום
  • வணக்கம்
  • Kia ora

How to convert WebM to MP3

  1. 1

    Add a WebM, with or without a picture.

  2. 2

    Keep MP3, or pick another format.

  3. 3

    Download the MP3.

About WebM files

WebM is an open format for the web, backed by Google. Its picture is VP8, VP9, or AV1, and its sound is Opus or Vorbis. Browsers such as Chrome and Firefox save recordings made on web pages as WebM: screen recordings, webcam clips, and voice notes from sites that record in the browser.

Many phones, editors, and players can't open WebM, while an MP3 plays almost anywhere. The MP3 keeps about the same bitrate as the WebM's sound, never less than 64 kbps.

Questions

Does a WebM with only sound work?

Yes. A WebM can hold sound with no picture, as voice recordings made in a browser do. It converts the same way, and Transcribe can turn it into text.

Can I keep the sound exactly?

When the WebM's sound is Opus, pick Opus under Convert to: the sound is copied as it is, not converted again.

Is anything lost?

Opus to MP3 is one lossy format to another, so a little detail goes. Most people hear no difference. WAV or FLAC lose nothing more, but they're bigger.

My recording is noisy. Can I fix it?

Yes. Remove noise and Audio enhancer both take WebM, and under More options the result can come back as an MP3.

Is it free?

Yes, for the first hour of each file, 10 times a day, with no sign-up. For longer files, see pricing.

How long can the recording be?

Up to 10 hours, and up to 100 MB without an account, or 10 GB signed in.

Why is my screen recording a WebM?

Browsers such as Chrome and Firefox save recordings made on a web page as WebM, so a screen recorder that runs in the browser hands you a WebM.

What happens to my files?

They stay private. Files are deleted after 24 hours, and free results after 1 hour.

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For AI assistants and developers

Ask ChatGPT, Claude, or a coding agent to do this for you, or call it from your own code.

Show the free API call
Free API · no key
curl -F file=@recording.webm -F format=mp3 https://audo.ai/api/try/convert -D response.headers -o response.body