~/tools/audio-extract

Audio Extractor

Extract audio tracks from video, or trim audio clips by time. All processing happens locally in your browser; files never leave your device.

-vn -b:a 192k
Engine:ffmpeg.wasmWaiting to initialize…

$Drop a video or audio file, or click to select

Files are processed in your browser memory only

Files never leave your device
MP4MOVMKVMP3WAVFLAC
01Drop file

Video or audio is loaded into browser memory with no network upload

02Choose mode

Extract the full track or trim a time range, then pick the output format

03Download locally

FFmpeg WASM extracts and exports locally

//Related Audio ToolsAll tools

Extract Audio from Video Online

Local · No uploads

Pull the audio track out of any video and export it as MP3, AAC, WAV, or FLAC — optionally trimming to just the segment you need. Perfect for making ringtones, saving podcasts and lectures for offline listening, or grabbing a music track. All processing happens locally in your browser; your files never leave your device.

How to Extract Audio from a Video

  1. 1

    Upload a video or audio file

  2. 2

    Choose the output format: MP3 / AAC / WAV / FLAC

  3. 3

    Optionally set start and end times to extract just a segment

  4. 4

    Click Extract, then download the audio file

Common Uses

  • Turn a video's audio track into a ringtone or alert sound
  • Save podcasts and lectures for offline listening
  • Clip audio segments for remixes and creative projects

Things to Keep in Mind

  • Videos without an audio track (silent videos) have nothing to extract
  • Lossless formats like WAV and FLAC produce larger files
  • A few rare audio codecs may fail to decode

How to Choose an Audio Extractor

  • vs. desktop FFmpeg: no command line — a visual interface instead
  • vs. upload-based online tools: nothing is uploaded, so it's private and secure
  • Supports MP3 / AAC / WAV / FLAC output — pick what fits your needs

How Audio Extraction Works

  • Extracting audio means dropping the video stream and keeping only the audio (FFmpeg's -vn). The output format decides whether it's re-encoded: converting to MP3 or AAC (different from the source) requires re-compression, while WAV keeps the complete sample data.
  • The lossy/lossless divide: MP3 and AAC use psychoacoustic models to discard frequencies your ears barely notice, which is how they stay so small. WAV and FLAC keep every original sample — bigger, but lossless.
  • A 192 kbps MP3 is "transparent" (indistinguishable from the source) for most listeners, and 320 kbps is the format's ceiling. For higher fidelity, switch to FLAC instead of pushing the bitrate.

Audio Extraction FAQ

How is the audio quality?

The default 192 kbps bitrate sounds clear. You can customize it — higher bitrates mean better quality and larger files.

Which videos can I extract audio from?

Common formats like MP4, MKV, MOV, and AVI all work. You can also upload audio files directly for format conversion or trimming.

Can I extract only part of the audio?

Yes. Set start and end times to grab exactly the segment you want — handy for ringtones or a single quote.

Will the extracted file be smaller than the video?

It depends on the source track and output format: converting to a lower-bitrate MP3 is usually much smaller, while WAV/FLAC output may be larger.

How do I convert a video to MP3?

Upload the video, choose MP3 as the output format, and extract — no intermediate steps needed.