Need just the audio from a video? Maybe you recorded an interview, captured a lecture, or want the soundtrack of a clip. You don’t need to install anything — modern browsers can do the entire job in seconds. Here’s how.
Why browser-based extraction is better
Traditionally, “extract audio from video” meant either:
- Uploading your file to a sketchy converter site, or
- Installing heavyweight software like Audacity or VLC.
Both are overkill. With WebAssembly, the same media-processing power that runs in those desktop apps now runs inside your browser. That gives you three big advantages:
- Privacy — your file never leaves your device.
- Speed — no upload waiting, no download afterwards.
- No install — works on any device, even on a borrowed laptop.
Step-by-step
- Open mp4intomp3.com in your browser.
- Drop your video file onto the box, or click to choose it.
- Pick the audio format you want:
- MP3 — universal, small, great for everyday use.
- WAV — uncompressed, for editing.
- M4A (AAC) — efficient, the iTunes/Apple Music default.
- FLAC — lossless and half the size of WAV.
- (Optional) Open Advanced settings to trim, fade, or change loudness.
- Click Convert and then Download.
Supported video formats
Our converter accepts: MP4, M4V, MOV, MKV, WEBM, AVI, FLV, WMV, 3GP, OGV, TS, MTS, MPEG, MPG, VOB — and most variants you’ll encounter in the wild.
Pro tips
- Set bitrate to 320 kbps when extracting music for the highest MP3 quality.
- Use FLAC if you plan to edit the audio later — you don’t want to compound compression artifacts.
- Trim before converting to save processing time on long videos.
- Add ID3 tags during conversion so your music app shows the correct title and artist immediately.
Common questions
Do you keep my video? No. We don’t have a server that handles user files. Your video is processed locally and discarded as soon as you close the page.
Is there a file size limit? Practically no — only your device’s available memory.
Does it work on iPhone/Android? Yes, on any modern mobile browser.
Beyond MP4
The MP4intoMP3 converter is named for the most common case, but it works equally well for .mov from iPhones, .mkv from torrent rips, and .webm from streaming downloads. Drop in whatever video you have and choose your audio format — done.