Extract and trim audio from a video
Upload a video, drag to pick the exact clip you want to keep, and download the resulting MP3.
From video to MP3 in 3 steps
Upload your video
Drop the video file you want to extract the audio from.
Mark the clip
Enter the start and end of the trim, or use the full video if you prefer.
Download your MP3
Preview it and download the resulting audio file.
Extract audio from a video online: the complete guide
Converting a video's audio track to MP3 is a common need: saving the sound from a recorded class, pulling a clip from an interview for a podcast, extracting a song from a concert filmed on a phone, or simply keeping a video's audio without the weight of the full video file. This tool does both things at once: it extracts the audio track and lets you trim exactly the clip you need, in a single step.
How the engine works under the hood
Under the hood, this tool uses FFmpeg, the most widely used open-source audio and video engine in the world, compiled to WebAssembly so it can run inside your browser exactly as it would if installed on a computer. The first time you use the tool, your browser downloads that engine (about 30 MB); after that it stays available for the following conversions without needing to download it again in the same session.
Trimming before exporting
Instead of downloading the full audio and trimming it later in another program, you can set the start and end points right here, in hours:minutes:seconds format. The engine extracts only that segment, which also makes the process faster the shorter the clip you choose. If you'd rather keep the full audio, switch the mode to "full video" and it will export without trimming.
Choosing the MP3 quality
The tool offers three bitrate levels: 128 kbps for light files suited to messaging apps or long voice notes, 192 kbps as a recommended balance for most uses (music, podcasts, classes), and 320 kbps when sound fidelity matters, for example for editing the audio further in another program.
Supported video formats
You can upload virtually any common format: MP4, MOV (the typical iPhone format), WEBM, MKV or AVI. The engine automatically detects the audio track inside the container and converts it to MP3, discarding the video if you only choose to extract the audio.
Processing time and limits
Since all the work is done by your own device (not a server shared with other users), processing time depends on the video's length and the power of your computer or phone. For videos up to 10-15 minutes the process usually finishes in seconds; for longer videos, be patient while watching the progress bar move. We recommend files up to about 200 MB for smooth performance on most devices.
Privacy for personal content
Many of the videos people extract audio from are personal recordings: classes, long voice notes, family moments, or work meetings. Since processing happens entirely in your browser, that content is never transmitted to an external server nor stored anywhere outside your device.