Pull the audio track from any video right in your browser — no uploading to a server. Pick your bitrate and download your MP3. Fast, private, and free.
Drop your video here or click to browse
Supports MP4, MOV, WebM, and more
Drop your MP4 or any video file — from recordings, downloads, or any source.
Select 320kbps for studio quality, 192kbps for balanced, or 128kbps for smaller files.
Get your MP3 instantly — plays on every device, music player, and platform.
MP4 (MPEG-4 Part 14) is the most widely used multimedia container format on the internet. It can hold video, audio, subtitles, and still images in a single file. Almost every device, browser, and social media platform supports MP4 natively.
While MP4 is designed primarily for video, it always contains an audio track — often encoded in AAC or MP3 format. This makes it straightforward to extract the audio without any quality loss from decoding the video stream.
Common sources of MP4 files include smartphone recordings, screen captures, YouTube downloads, and video editing exports. If you only need the audio — for a podcast, music clip, or voice memo — extracting it as MP3 gives you a much smaller file.
MP3 (MPEG Audio Layer III) is the world's most popular audio format. Introduced in the early 1990s, it revolutionised digital audio by compressing sound files to a fraction of their original size while maintaining good perceived quality.
At 320kbps, MP3 delivers near-CD quality audio that is indistinguishable from the original for most listeners. Lower bitrates like 192kbps and 128kbps offer smaller files with only a slight reduction in fidelity — ideal for spoken-word content, podcasts, and background music.
MP3 files are universally supported across every operating system, music player, car stereo, and smart speaker. Converting video audio to MP3 is the fastest way to create portable audio files that work everywhere.
Extracting the audio track from a video is useful when you only need the sound — for music, podcasts, lectures, interviews, or voice memos. MP3 files are dramatically smaller than MP4 videos, so they are easier to store, share, and play on any device.
At 320kbps the MP3 output is virtually indistinguishable from the original audio track. The conversion re-encodes the audio using the LAME MP3 encoder, which is the industry standard. Lower bitrates (192kbps, 128kbps) are still excellent for speech and casual listening.
Since conversion runs entirely in your browser using WebAssembly, the limit depends on your device's available memory. Most modern devices can handle videos up to 500 MB comfortably. For very large files, you may need to use a desktop application.
No. The entire conversion process happens locally in your browser using FFmpeg.wasm. Your video never leaves your device — it is 100% private.
Yes! While the tool is optimised for MP4, it accepts most common video formats including MOV, WebM, AVI, and MKV. Simply drop your video file and the converter will extract the audio track regardless of the container format.
320kbps is ideal for music and high-fidelity audio. 192kbps offers a good balance of quality and file size — great for most use cases. 128kbps produces the smallest files and works well for speech, podcasts, and audiobooks where pristine audio quality is less critical.
MP4 to MP3 conversion works in all modern browsers that support WebAssembly and SharedArrayBuffer — including Chrome, Edge, Firefox, and Safari 16.4+. For the best performance, use the latest version of Chrome or Edge.
Drop a video file and get a high-quality MP3 in seconds — right in your browser, no sign-up required.