How to Extract Audio from a Video Online
Follow these three simple steps to extract MP3 or WAV audio from a video. No software installation required. Free and secure.
Select a Video
Choose an MP4, MOV, WebM, AVI, MKV, M4V, MPEG, MPG, FLV, WMV, 3GP, or OGV video containing the audio you want to save.
Choose MP3 or WAV
Select the output format, then keep the automatic audio settings or choose a sample rate and mono or stereo output.
Extract and Download
Start audio extraction, review the original video and output audio file sizes, and download the completed MP3 or WAV file.
How Does the Video Audio Extractor Work?
The CompressFly audio extractor reads the first audio stream in your video and leaves out the picture. Choose MP3 to encode the sound as a 192 kbps compressed audio file, or choose WAV to save it as uncompressed 16-bit PCM audio. You can also keep the automatic sample rate and channel layout or select the available settings.
Audio extraction runs directly in your browser. Your video is not uploaded to a server, and the completed MP3 or WAV file downloads from the browser to your device.
What "directly in your browser" means
- Your video is not uploaded to a server.
- Audio extraction and encoding run locally on your device.
- The completed audio file downloads directly from your browser.
Should You Extract Audio as MP3 or WAV?
Choose the output format based on how you plan to listen to, share, edit, or process the extracted audio.
| Format | Best For | What to Know |
|---|---|---|
| MP3 | Listening, sharing, transcription, and general use | Compressed at 192 kbps for a smaller, widely playable audio file |
| WAV | Editing, production, and workflows that request PCM audio | Uncompressed 16-bit PCM audio with a larger output file |
For either format, keep the automatic audio settings or choose 22.05, 44.1, or 48 kHz and mono or stereo output.
Related Audio Extraction Tools
Extract Audio from Video FAQ
How do I extract audio from a video online?
Use this online audio extractor to extract audio from a video in three steps: 1. Select a video from your device. 2. Choose MP3 or WAV and keep or change the available audio settings. 3. Start extraction and download the completed audio file.
What video formats can I extract audio from?
The audio extractor accepts MP4, MOV, WebM, AVI, MKV, M4V, MPEG, MPG, FLV, WMV, 3GP, and OGV video files.
Should I extract MP3 or WAV audio?
Choose MP3 for a smaller file suited to listening, sharing, and transcription. Choose WAV when an editor or production workflow requests uncompressed PCM audio.
Does the extracted audio file include the video?
No. The extractor leaves out the picture and saves only the selected video's audio as an MP3 or WAV file.
Which audio track is extracted?
The current audio extractor uses the first available audio stream in the selected video.
Can I change the audio sample rate and channels?
Yes. Keep the automatic settings or choose 22.05, 44.1, or 48 kHz and select mono or stereo output.
Is the audio extractor free?
Yes. Extract MP3 or WAV audio from video for free with no registration or credit card required.
Is there a file size limit, and is my video uploaded?
Your video is processed locally in your browser and is not uploaded to a server, so there is no server upload limit. The practical limit depends on your device's available memory and processing power, as well as the video's duration and resolution.