How to Extract Audio from a Video File

Step-by-step

1. 1

   Go to the converter

   Visit the homepage or go directly to the MP4 to MP3 converter. The converter also works with MKV, MOV, and other video formats — just upload and it detects the file type.

2. 2

   Upload your video file

   Drag the file into the upload area or click to browse. Files up to 200 MB are supported. If your file is larger, see the note below.

3. 3

   Choose your audio output format

   Select MP3, WAV, or M4A. MP3 is the best choice for most purposes — small file, plays everywhere. WAV if you need the audio for editing software. M4A for Apple device compatibility.

4. 4

   If converting to MP3, choose a bitrate

   192 kbps is a good default. 320 kbps for higher quality. 128 kbps for a smaller file when quality is less important (voice recordings, lectures).

5. 5

   Convert and download

   Click Convert and wait a few seconds. When complete, click Download. The file is automatically deleted from the server after 30 minutes.

Which video formats are supported?

The converter accepts MP4 files directly. It also accepts audio-containing files in formats including MKV, MOV, WebM, and AVI through the general upload flow — upload the file and the converter will detect the audio track. If your video format is not recognised, the upload will fail with a format error.

MP4 is by far the most common video format for this purpose. If you downloaded a video from YouTube, a lecture, a screen recording, or a video message, it is almost certainly MP4.

What output format should I choose?

• MP3— Best for sharing, uploading, or playing on any device. 192 kbps is the right choice for music. 128 kbps is fine for voice or podcasts.
• WAV— Use this if you need to import the audio into editing software (Audacity, Premiere, Final Cut, etc.).
• M4A— Good option if you primarily use Apple devices and apps.

What about the video quality?

The converter extracts the existing audio track from the video. It does not affect video quality because the video stream is discarded entirely — only the audio is saved.

The audio quality of the output depends on the audio in the original video. If the video had low-quality audio (e.g. a compressed MP4 with a 128 kbps AAC track), the extracted audio will reflect that source quality. Choosing a higher output bitrate cannot improve audio quality beyond what the source contained.

File too large?

The maximum upload size is 200 MB. If your video file exceeds this:

• —Trim the video to a shorter section using a local tool before uploading
• —Use a desktop tool like VLC or FFmpeg if you have one installed — both can extract audio natively
• —For very large files, a local tool will be faster than an upload-based converter regardless of size limits