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Video to MP3 Converter

Extract MP3 audio from any video, free and 100% in your browser

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100% private. Your file is processed locally in your browser with WebAssembly — it is never uploaded to a server, stored, or seen by anyone.

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The ClipTools Video to MP3 Converter extracts the audio track from any video and saves it as a ready-to-play MP3 file, with selectable quality. It accepts MP4, MOV, AVI, MKV, WebM, FLV, WMV and M4V files and lets you choose High, Medium, or Low quality so you can balance audio fidelity against file size. There is no watermark, no signup, and no limit on how many videos you convert.

Everything runs entirely inside your browser using ffmpeg compiled to WebAssembly (ffmpeg.wasm), so your video is never uploaded to any server. The audio is demuxed and re-encoded locally on your own device, then handed back to you as an MP3 download. This makes the tool a fast, private choice for podcasters, students, musicians, and anyone who wants the sound from a video file without installing software.

Why use this tool

Complete privacy by design

Your video is processed entirely on your own device through ffmpeg.wasm and is never uploaded to a server, so confidential recordings, interviews, and personal clips stay private.

Selectable MP3 quality

Choose High, Medium, or Low to control the bitrate and file size, so you can keep music near CD quality or shrink a long podcast down to a compact, shareable file.

Wide format support

Extract MP3 audio from MP4, MOV, AVI, MKV, WebM, FLV, WMV, and M4V without converting the container first, so almost any video you have works directly.

No installs, no signup, no limits

Everything runs in your browser with nothing to download and no account to create, and you can convert as many videos as you like for free without watermarks.

How to use the Video to MP3 Converter

  1. Add your video

    Drag and drop your video file onto the upload zone, or click to browse and select an MP4, MOV, AVI, MKV, WebM, FLV, WMV, or M4V file from your device.

  2. Choose audio quality

    Select High for best fidelity, Medium for the recommended balance of quality and size, or Low for the smallest MP3 file.

  3. Start the conversion

    Click Convert to MP3 and watch the progress bar as the audio is extracted locally in your browser.

  4. Download your MP3

    When processing finishes, click the download button to save the MP3 file to your device.

  5. Convert another video

    Use the Convert another file option to reset the tool and extract audio from a new video without reloading the page.

Popular use cases

  • Turning a recorded lecture or webinar into an MP3 you can listen to on the go
  • Extracting a song or backing track from a music video to play offline
  • Pulling clean audio from an interview or podcast recorded as a video file
  • Saving the soundtrack or voiceover from a screen recording for editing or transcription

Frequently asked questions

Is this video to MP3 converter free?
Yes, it is completely free with no signup, no watermark, and no conversion limits. You can extract MP3 audio from as many videos as you want. The tool is ad-supported, which keeps the conversion itself free of charge.
Does my video get uploaded to a server?
No. Your video never leaves your device. The audio extraction runs locally in your browser using ffmpeg compiled to WebAssembly, so the file is processed in memory on your own computer. Nothing is uploaded, stored, or sent to ClipTools or any third party.
Which video formats can I convert to MP3?
The converter accepts MP4, MOV, AVI, MKV, WebM, FLV, WMV, and M4V files, covering virtually every common video format. Whatever the container, the tool extracts the audio stream and encodes it as a standard MP3 that plays on any device or media player.
What is the maximum file size I can convert?
You can convert videos up to 500 MB. Because all processing happens locally, the practical ceiling also depends on your device's available memory, so very large files convert more reliably on a desktop than on a low-memory phone.
What do the High, Medium, and Low quality options mean?
They set the MP3 encoding quality using ffmpeg's variable bitrate scale (-q:a). High produces near-CD quality at a larger file size, Medium is the recommended balance for most uses, and Low creates the smallest file at reduced fidelity. Pick High for music and Medium or Low for speech and podcasts.
Will I lose audio quality when extracting MP3?
Some quality loss is unavoidable because MP3 is a lossy format and the audio is re-encoded during extraction. Choosing the High quality option keeps the result very close to the original source audio. The converter cannot add quality beyond what the original video's audio track contained.
How long does the conversion take?
Most videos convert in a few seconds to under a minute. Audio extraction is fast because the tool only processes the audio stream rather than re-rendering video. Speed depends on file length, chosen quality, and your device's processor, and the first conversion is slightly slower while ffmpeg.wasm loads.
Can I extract just the audio without keeping the video?
Yes, that is exactly what this tool does. It maps only the audio stream from your video file and discards the video, producing a standalone MP3. The original video on your device is left untouched, and you only download the extracted audio.

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Popular conversions

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MOV → MP3MKV → MP3WebM → MP3AVI → MP3