How to use the Extract Audio from Video tool
- Choose the video that contains the audio.
- Pick the audio format and bitrate. Optionally set a start and end to keep only part of it.
- Press Extract audio.
- Listen to the preview and download the file.
About this tool
Extracting audio saves just the sound of a video: a lecture, a music clip, a voice memo recorded as video, an interview. When the video's audio is AAC (most MP4 and MOV files) and you choose M4A or AAC, the tool copies it out without re-encoding, so quality is untouched and it is nearly instant.
For other formats the audio is decoded and re-encoded at the bitrate you pick: MP3 for universal compatibility, M4A/AAC for small clean files, or WAV for uncompressed audio you plan to edit. Use the range sliders to extract only a segment.
Why use ToolsCrow for this
- Lossless AAC copy. M4A and AAC extraction skips re-encoding when the source is AAC.
- Four formats. MP3, M4A, AAC and WAV.
- Extract a segment. Keep only the part you want.
- Private. No upload.
Good to know
- MP3 encoding loads a small (about 150 KB) encoder library the first time you use it, so it needs a connection for that one download. Videos with no audio track cannot be extracted.
Frequently asked questions
Is my video uploaded to a server?
No. Everything runs inside your browser tab using your own device's video hardware. Your file is never sent to ToolsCrow or anyone else, which also means there is no waiting for an upload and it keeps working if your connection drops after the page has loaded.
Is it really free? Is there a watermark?
It is free with no sign-up, no watermark and no daily limits. The only limits are the ones your device sets: memory and processing power.
How large a video can I use?
Because the video is processed on your device, the limit is your device's memory rather than a server quota. Phone clips of several hundred MB are fine on most devices, and desktop computers usually handle 1 to 2 GB. Files over about 4 GB are not supported.
Which browsers work best?
Current Chrome, Edge and Safari (16.4 or newer, including iPhone and iPad) work best because they include the WebCodecs video engine. Recent Firefox versions work for many files. Older browsers fall back to a much slower real-time mode or may not work at all.
Which audio format should I choose?
MP3 works everywhere. M4A (AAC) is smaller for the same quality and plays on all modern devices. WAV is uncompressed and large, best for editing. Pick MP3 when you are unsure.
Does extracting audio reduce quality?
Copying AAC audio to M4A or AAC loses nothing. Converting to MP3 or re-encoding always loses a little; 192 kbps or higher is transparent for most listeners.
Related video tools
- Video to MP3Turn a video into an MP3 in one step.
- MP4 to MP3Save the sound of an MP4 video as a MP3 file.
- MP4 to WAVSave the sound of an MP4 video as a WAV file.
- Mute VideoStrip the sound from a video in a moment.
- Add Audio to VideoLay an MP3, WAV or M4A over a video.
- Video Volume ChangerFix a video that is too quiet or too loud.
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