UtilityBaseProductivity Tools
Video to MP3
Extract the audio from any video as an MP3 — no upload, no size limits.
Updated July 14, 2026
How to use the video to mp3
- 1Choose the MP3 quality (192 kbps suits most uses).
- 2Drop in a video — MP4, MOV, WebM, MKV, AVI.
- 3Wait for the on-device conversion to finish.
- 4Preview the audio, then download your MP3.
Common uses
- Pulling music or a talk out of a video
- Turning lecture or meeting videos into audio
- Extracting audio to transcribe or edit
- Converting WAV/M4A/OGG audio files to MP3
Frequently asked questions
Is my video uploaded to a server?
No. The tool runs FFmpeg — the same engine professional software uses — compiled to WebAssembly inside your browser. The file is read locally, the audio is extracted on your device, and the MP3 is generated locally too. That's why there are no size limits or queues: there is no server doing the work. Only the ~31 MB engine downloads, once.
What formats and quality does it support?
Input: virtually anything FFmpeg can open — MP4, MOV, WebM, MKV, AVI, and also plain audio files like WAV, M4A, or OGG. Output is MP3 at your choice of 128 kbps (smallest), 192 kbps (the sweet spot for most listening), or 320 kbps (highest). The audio is re-encoded from the source track, so quality can't exceed what the video contains.
Why did my conversion fail?
The three usual causes: the video has no audio track at all (common with screen recordings and test clips), the file is DRM-protected (streaming downloads, purchased content), or a very large file exceeded your device's memory — the whole conversion runs in RAM. Try a different source file, or trim the video first with the video trimmer.
About this tool
Convert any video to MP3 right in your browser, powered by a real FFmpeg engine compiled to WebAssembly. Drop in an MP4, MOV, WebM, MKV, or AVI and get the audio track as an MP3 at 128, 192, or 320 kbps — with a built-in player to preview before you download. Because the conversion happens entirely on your device, your video is never uploaded: no size caps, no queues, no watermarks, and nothing for a server to keep. The engine (~31 MB) downloads once and is cached for next time. It also converts plain audio files (WAV, M4A, OGG and more) straight to MP3. Great for pulling a song or talk out of a recording, turning a lecture video into audio for the commute, or feeding a video's audio into the transcriber.
The video to mp3 connects to an external service to fetch live data, so some of what you enter is sent over the network to provide the result — see the note in the tool for specifics. We don't require an account, and we don't store your queries. Most tools on UtilityBase run entirely in your browser; this one needs the network to do its job. Browse more productivity tools here.
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