Extract Audio from Video - Free
Pull the audio track out of a video file. Drop a video into the editor and only the sound comes out - the video frame data is discarded. The extraction runs entirely in your browser. Your video file is never uploaded to any server.
Pull the audio track out of a video file. Drop a video into the editor and only the sound comes out - the video frame data is discarded. The extraction runs entirely in your browser. Your video file is never uploaded to any server.
Problems This Tool Solves
My extraction tool was silently re-encoding the audio
Many tools re-encode instead of doing a direct stream copy. This tool decodes via the browser audio engine and lets you export as WAV for maximum quality preservation.
I want just the audio from a lecture video for offline listening
Drop the video file here. The audio track extracts automatically. Trim, normalize, then export as MP3 for your phone.
The extracted audio is very quiet
Many video recordings have low audio levels. Use Normalize after extraction to bring the volume to a usable level.
Common Use Cases
Save audio from a lecture video
Extract the speech from a recorded lecture or webinar so you can listen on the go without the video.
Turn a video clip into a podcast episode
Pull the audio from a video interview or panel discussion and publish it as a podcast.
Get the soundtrack from a music video
Extract the audio track from a concert recording or music video for offline listening.
Grab speech from a screen recording
Extract narration or dialogue from a screen capture for transcription or editing.
How to Extract Audio from Video
- Drop your video file into the editor. MP4, WebM, and MOV are supported in most browsers.
- The audio track is extracted automatically. You will see the waveform once decoding finishes.
- Edit the audio if needed - trim, normalize, remove noise, or apply any other tool.
- Export as WAV for full quality or MP3 for a smaller file.
Extract vs Screen Record vs Convert
Extract Audio
Pulls the actual audio track from inside the video container. Best possible quality because it uses the original audio data.
Best for: getting clean audio from video files on your deviceScreen Recording
Captures whatever the computer plays through the speakers. Adds an extra encoding step and may pick up system sounds.
Best for: capturing audio from streaming video when you do not have the fileConvert
Changes one audio format to another. Use this after extraction to switch from WAV to MP3 or another format.
Best for: changing the audio format for compatibility or file sizeVideo to Podcast Workflow
- Extract Audio - Pull the audio track from your video file
- Trim - Remove intro/outro or isolate the section you want
- Remove Noise - Clean up background noise from the recording environment
- Normalize - Bring to podcast-ready volume level
Quick Tips
- Export as WAV if you plan to edit the audio further. Convert to MP3 only as the final step.
- MP4 videos usually contain AAC audio. Extracting to WAV preserves the quality. Extracting to MP3 re-encodes and may reduce quality slightly.
- For large video files, extraction takes time because the browser must decode the entire file. Let it finish before editing.
- After extraction, use Normalize to bring quiet audio up to a professional level. Many lecture recordings are too quiet.
Common Misconceptions
Myth: Extracting audio to MP3 preserves original quality
Reality: Most videos contain AAC audio. Extracting to MP3 re-encodes from AAC to MP3, losing quality. Extract to WAV to preserve everything, then convert to MP3 as a final step.
Myth: Video extraction requires uploading to a server
Reality: This tool runs entirely in your browser. The video never leaves your device. The browser decodes it locally via the Web Audio API.
Common Problems and Fixes
Video format not recognized
Browser codec support varies. MP4 and WebM work in almost all browsers. MKV and AVI may not be supported. Try a different browser or convert the video to MP4 first.
Extraction is very slow
The browser must decode the entire video file to extract the audio. Large files (1+ GB) take time. Close other tabs to free up memory and processing power.
Extracted audio is very quiet
Some video recordings have low audio levels. Use Normalize after extraction to bring the volume up to a usable level.
Why Use This Extract Audio from Video
- Supports MP4, WebM, MOV, and other video formats your browser can play
- Extracts the original audio track at full quality
- Edit the extracted audio with any tool before exporting
- Export as WAV, MP3, or WebM
- Video never leaves your device. All processing is local.
Frequently Asked Questions
Which video formats work?
Any format your browser can play. MP4 and WebM work in all modern browsers. MOV works in Safari and most Chromium browsers. MKV and AVI support varies by browser.
Does extracting audio reduce quality?
Extraction itself does not lose quality - it captures the audio track as-is. Quality only changes when you export to a different format. Export as WAV to preserve everything.
Is the video uploaded to a server?
No. The video file stays on your device. The browser decodes it locally and captures the audio track through the Web Audio API.
Can I extract just a portion of the audio?
The full audio track is extracted first. Then use the Trim tool to keep only the section you need, or Cut to remove unwanted parts.
Why not just extract to MP3 directly?
Most videos contain AAC audio, not MP3. Extracting to MP3 forces a re-encode from AAC to MP3, which loses a small amount of quality. Extract to WAV first for best results, then convert to MP3 if needed.
How do I know what audio codec is inside my video?
Most MP4 files contain AAC audio. WebM files usually contain Opus or Vorbis. MOV files typically contain AAC or PCM. The codec determines the original quality - extracting to WAV preserves it all regardless of the source codec.
Can I extract audio from just a portion of the video?
The full audio track is extracted first. Then use the Trim tool to keep only the section you need. This two-step approach lets you precisely select the time range on the waveform.
Can I extract audio from TikTok or Instagram videos?
Yes, if you have the video file saved on your device. Download the video first (most platforms allow downloading your own content), then drop it into the editor. The audio track extracts automatically.