How to Extract Audio from Any Video (Convert Video to MP3)

Whether you want to save a conference talk, rip audio from a YouTube download, or keep just the soundtrack from a movie clip, extracting audio from video is one of the most useful media tasks you can do.

Why Extract Audio from Video?

• Save a podcast interview downloaded as MP4 as a listenable MP3
• Keep the music from a video without storing the whole file
• Create an audio version of a video lecture for offline listening
• Strip a voiceover from a screen recording for editing
• Reduce file size — an MP3 is typically 10–20× smaller than the source video

Supported Input Formats

Our tools accept virtually any video format:

• MP4 — Most common. Works everywhere.
• MOV — Apple QuickTime files from iPhones and Macs.
• MKV — Matroska container, common for downloaded movies.
• AVI, WMV, FLV, WebM — Older and web formats.

How to Extract Audio from a Video Online

Option 1 — MP4 to MP3 (fastest, single-purpose):

1. Open the [MP4 to MP3](/tools/mp4-to-mp3) tool.
2. Upload your MP4 file.
3. Download the MP3 — the audio track is extracted instantly.

Option 2 — Video to MP3 (any format):

1. Open the [Video to MP3](/tools/video-to-mp3) tool.
2. Upload any video file — MP4, MOV, MKV, AVI, or others.
3. Download the extracted MP3.

Output Quality

The extracted MP3 inherits the audio quality from the source video. If the original video has a 128 kbps audio track, the output MP3 will be 128 kbps. There is no quality improvement during extraction — but there is no additional loss either, since we demux the audio rather than re-encoding when possible.

Converting to Other Audio Formats

Need WAV instead of MP3? Use the [Audio Converter](/tools/audio-converter) to convert the MP3 output to WAV, OGG, FLAC, or AAC.

Tips for Best Results

• For spoken audio (lectures, podcasts), 128 kbps MP3 is sufficient and keeps files small.
• For music, prefer 192 kbps or higher to preserve dynamic range.
• If the output audio sounds out of sync, the source video may have a variable frame rate — convert the video to a fixed frame rate MP4 first using our [MP4 Converter](/tools/mp4-converter).