Extracting audio from MP4 files is useful in more situations than it might seem. Podcasters and content creators use it to pull the spoken track out of a screen recording or interview video, turning it into a shareable MP3 without the extra weight of a video file. Musicians and DJs use it to save a soundtrack or performance clip from a video for offline listening. Students and professionals extract audio from recorded lectures, meetings, or webinars so they can listen back later without needing to replay the entire video. It's also a quick way to convert a video voice memo, a birthday message, or a home movie's audio into a standalone file that's easier to send over text or email, since MP3s are dramatically smaller than video files and play on virtually any device.
Is this MP4 to MP3 converter really free?
Yes — completely free. No signup, no account, no payment, no hidden costs. yhile.com is free forever. There are no ads either.
Does my video file get uploaded to a server?
No. Your file never leaves your device. The conversion happens entirely inside your browser using WebAssembly (ffmpeg.wasm). We cannot see your files and we don't store anything.
What is MP3 and why would I extract it from an MP4?
MP3 is a widely-supported audio format. MP4 files contain both video and audio tracks. Extracting the audio as an MP3 lets you save music, podcasts, interviews, or any sound from a video — at a much smaller file size, without the video.
How large a file can I convert?
The limit depends on your device's available RAM. Most modern computers handle files up to 1–2 GB fine. Very large files may be slow on low-memory devices.
Does this work on iPhone and Android?
Yes. The tool works in any modern browser — Chrome, Safari, Firefox, Edge — on desktop, iPhone, iPad, and Android devices.
What audio quality does the MP3 have?
The tool uses a high-quality VBR setting (equivalent to about 190 kbps). The output quality is limited by the audio quality in the original MP4 file.