Extract Audio from Video Online

Choose export format and quality, preview, and download on your device.

Lossy and lossless options, optional normalize and stream copy, multiple tracks when available. No registration.

Audio settings

192 kbps

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Drag & drop your video

or click to browse • One video at a time

Related tools

Why extract audio from video?

Get a standalone soundtrack for podcasts, editing, archiving, or smaller files to share — without re-encoding the picture at all.

Benefits

  • Smaller files: Audio-only files are usually much smaller than full video.
  • Edit-ready: Open the extracted file in any DAW or editor.
  • Flexible formats: Choose MP3 for size, WAV or FLAC for quality, AAC/M4A for Apple-friendly delivery.
  • Local processing: Designed to run in your browser without uploading your video to our servers.
  • Fine control: Trim ranges, normalize loudness, stereo/mono, and stream copy when the codec already matches.

How this tool works

Your video is written into an in-browser in-browser media engine instance. The tool maps the selected audio stream, optionally re-encodes to your chosen format, and writes a downloadable audio file. Video frames are discarded (-vn).

Workflow (overview)

  • Settings: Choose format, quality, trim, and processing options.
  • Video: Load one file; probe shows duration and stream info.
  • Track: Select which audio stream when there are several.
  • Extract: in-browser media engine runs locally in the tab.
  • Download: Save MP3/WAV/FLAC/OGG/AAC/M4A.

Facts

Useful expectations before you extract.

Key points

  • Output quality cannot exceed what was stored in the video’s audio stream.
  • Stream copy only works when the output container/codec matches the source (for example AAC in to M4A).
  • Very long videos use more memory and time in the browser.
  • If there is no audio track, extraction may fail or produce silence — the tool probes streams when possible.
  • One video per session; replacing the video clears the previous clip.

Best practices

Cleaner files with fewer surprises.

Quality and format

  • Use WAV or FLAC when you need lossless intermediate files.
  • Use MP3 or AAC presets for sharing; higher bitrate presets reduce artifacts.
  • Enable normalize only if levels vary wildly — it changes dynamics.
  • Match sample rate to your target platform (often 44.1 kHz or 48 kHz).
  • Keep the original video if you need picture-accurate re-edits later.

Common use cases

  • Podcasts: Pull audio from a recorded interview video.
  • Music: Grab a mix from a live-performance clip for reference.
  • Archiving: Store commentary or class audio separately.
  • Delivery: Send only audio to clients or transcription services.
  • Storage: Drop bulky video after you only need the sound.

Technical overview

in-browser media engine executes in the browser: input file is written to the virtual FS, arguments include -vn, stream mapping, optional -ss/-to trim, filters when normalizing, and codecs like libmp3lame or pcm_s16le. Progress updates map to a simple percentage.

Process

  • Probe: Optional ffprobe-style log parse for duration and audio stream layout.
  • Args: Build in-browser media engine arguments from your settings and selected track index.
  • Encode / copy: Re-encode or bitstream copy when conditions match.
  • Output: Read the result blob and attach a local object URL for preview and download.
  • Privacy: Processing is intended to stay on your device without uploading media to our servers.

Powered by browser in-browser media engine and optimized loading.

Frequently asked questions

Is my video uploaded?

No. Extraction runs locally in your browser with in-browser media engine loaded into the page.

Which video formats work?

Common formats such as MP4, WebM, MOV, and others your browser can decode are typical; edge cases depend on codecs and in-browser media engine build support.

Can I extract multiple videos at once?

No. Add one video, download, then start again with another file.

What does stream copy do?

When the incoming audio codec already matches the output (and you have not forced resample, channels, or normalize), the audio can be copied without re-encoding for speed and to avoid generation loss.

Why is my file silent or failing?

The source may lack an audio track, use an unsupported codec, or the selected track index may be wrong. Try another track or re-encode instead of stream copy.

Will quality match the video?

The extractor preserves or re-encodes from the video’s audio. It cannot invent detail that was not in the source.

Extract Audio from Video Online Free – Soundtrack to Audio File