MP4 .mp4
A multimedia container. This converter writes H.264 video and AAC audio for broad compatibility.
MP4 file format guideMP4 to MP3 converter
Convert MP4 to MP3 to save a video's audio as a separate file. Choose the bitrate and preview the sound before downloading.
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Drag files here or choose them from your device.
MP3 .mp3
A widely supported lossy audio format. Higher bitrates generally preserve more sound detail.
MP3 file format guideHow to convert MP4 to MP3
- Select MP4 files from your device or drag them into the converter.
- Check the MP3 output. Open conversion settings if you want to make adjustments.
- Convert, compare the original and result, then download your files.
Quality, compatibility and file limits
Trim a clip, resize the frame, or adjust playback speed before export. Video conversion re-encodes supported streams; subtitles, extra audio tracks, and container attachments are not preserved. Audio output requires an audio track in the input.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.