Workflow
Transcribe Extracted Audio
Create editable text, captions, SRT, or VTT after pulling speech from a video file.
Extract Audio from Video OnlineExtract WAV or MP3 from MP4, MOV, WebM, or MKV
Pull the audio track out of a video file directly in your browser. Use it as an online MP4 to MP3 converter for smaller audio downloads, or keep WAV for interviews, voiceovers, transcription, subtitles, cleanup, and editing without sending the video to a server.
Drop video file here or click to upload
Files processed locally in your browser
Private by design — Files never leave your device — No upload required
How to Extract Audio from Video
1
Choose your file
Select an MP4, MOV, WebM, MKV, or another supported video that contains the voice, music, lecture, call, or screen recording audio you want to keep.
2
Extract locally
The in-browser extractor reads the embedded audio track on your device. There is no cloud upload step for supported files.
3
Download WAV or MP3
Save the extracted track as WAV for editing, volume cleanup, transcription, subtitle prep, and archiving, or choose 256 kbps MP3 when you want a smaller file.
4
Convert if needed
Need a smaller file? Choose 256 kbps MP3 during extraction. That makes this page useful as an MP4 to MP3 converter while still giving you WAV when you want the better source for cleanup and editing.
Supported Video Formats
Supported containers and codecs
MP4
MOV
WebM
MKV
AVI
MPEG / MPG
3GP / 3G2
TS / M2TS / MTS
WMV / ASF
MXF / FLV / VOB
H.264 / AVC
H.265 / HEVC
Videos with readable audio tracks
Private by designFiles never leave your device
No Upload RequiredEverything runs in your browser
Local ProcessingSpeed depends on file size
Modern BrowsersDesktop is best for large videos
Why this matters in real production
Privacy note
Your video stays on your device, which helps protect private footage, client exports, lectures, interviews, and internal recordings from unnecessary upload steps.
Practical tip
Extract WAV first when the next step is editing, cleanup, transcription, subtitles, captions, SRT, or VTT. Choose MP3 during extraction when you specifically need an MP4 to MP3 workflow for easier sharing.
Limitations to know
Video containers and codecs matter. A large 4K file, unusual camera export, unsupported audio stream, or mobile memory limit can stop extraction from completing.
Recommended workflow
Extract the audio, trim unrelated sections, remove long silence if needed, normalize the useful speech, then transcribe, subtitle, or convert the final file.
What Can You Do with Extracted Audio?
Audio extraction turns the sound inside a video into a standalone file. Use it when you need the voice from a recorded call, the music from a clip, a lecture track for study, or cleaner source audio for editing.
It is also a useful first step before transcription and subtitle work. Extract the audio, then send it to the transcription tool to create text, captions, SRT, or VTT files from speech-heavy videos. If you simply need to convert MP4 to MP3 online, you can do that here during extraction too.
Private Browser-Based Extraction
This tool uses in-browser FFmpeg processing to read video containers and extract audio tracks directly on your device. The file stays local, the audio is extracted in memory, and the result exports as WAV or 256 kbps MP3 without touching a server.
Key Benefits
Ready for Production Work
The extracted audio is ready for trimming, review, cleanup, subtitle preparation, transcription, and further audio editing.
No Re-Upload
Skip the typical workflow of uploading to a server, waiting for conversion, and downloading the result again.
Edit Immediately
After extraction, trim unwanted sections, normalize volume, remove silence, convert to MP3, or transcribe the audio with related tools.
Honest Browser Limits
Modern browsers handle many common videos, but very large files, mobile memory limits, and unusual codecs can affect loading.
Common Video-to-Audio Workflows
Extract audio from video when the sound is the part you actually need: speech, music, voiceover, room tone, lecture audio, or a clean track for the next production step.
Podcasts & Interviews
Pull the audio track from video interviews, webinars, or recorded calls for podcast publishing or voice-only review.
Music & Lyrics
Extract audio from music videos or live recordings for remix preparation, analysis, rehearsal, or sound reference.
Transcripts & Subtitles
Extract speech from MP4, MOV, WebM, or MKV files before creating transcripts, captions, SRT subtitles, or VTT subtitle files.
Content Creation
Pull clean audio from video clips for editing, voiceover prep, social publishing, or content repurposing.
Related Workflows
Browser Limits to Know
Browser-based extraction is private and convenient, but it still depends on your device, memory, browser, video container, and codecs. Large 4K videos, long recordings, unusual camera formats, or files with unsupported audio streams may take longer or fail to load. If that happens, try a desktop browser, a shorter clip, or a more common MP4/MOV/WebM file.
Frequently Asked Questions
Will my video be uploaded?
No. For supported files, the video stays on your device and extraction runs locally in your browser. That makes the tool useful for private videos, client footage, interviews, lectures, and internal recordings.
Is extracting audio from private videos safe?
For supported files, yes. The extraction happens in your browser instead of on a remote server, so private recordings, client footage, and internal videos do not need to leave your device.
Can I extract audio from MP4, MOV, WebM, and MKV files?
Yes. The tool accepts MP4, MOV, WebM, MKV, AVI, MPEG, 3GP, TS, WMV, MXF, FLV, VOB, and other common containers when the browser can read the file and the video includes an audio track.
Can I convert video to MP3?
Yes. This page can extract audio directly as 256 kbps MP3. If you want the best source file for editing, cleanup, transcription, or subtitles, choose WAV instead.
Can I use this as an online MP4 to MP3 converter?
Yes. Upload an MP4 file, choose MP3 256 kbps, then extract and download the audio in your browser. If you want a better source for editing or transcription, choose WAV instead.
Should I use WAV or MP3 after extracting audio?
Use WAV when you plan to trim, normalize, remove silence, transcribe, subtitle, or edit the file. Choose 256 kbps MP3 when you want a smaller file for sharing, publishing, or storage.
How do I convert MP4 to MP3 online?
Upload the MP4 file, choose MP3 256 kbps in the extractor, run the extraction, and download the finished audio file. For editing, subtitles, or cleanup, WAV is usually the better first export.
Can I use extracted audio for transcription or subtitles?
Yes. Extracting audio from video is often the first step before creating a transcript, captions, SRT subtitles, or VTT subtitles from interviews, webinars, screen recordings, lectures, and social videos.
Can I trim or normalize audio after extraction?
Yes. After you download the extracted audio, use the audio cutter to trim unwanted sections, normalize volume to balance loudness, or remove silence before publishing or transcribing.
Does extracting audio reduce quality?
The tool decodes the source audio track and exports it as WAV or 256 kbps MP3. Quality still depends on the audio inside the original video, so a noisy, compressed, or low-volume recording will not become clean automatically.
Why does my video not load in the browser?
The file may use an unsupported container, codec, audio stream, or file structure. Very large videos can also hit browser memory limits, especially on phones and tablets.
Can I extract audio on mobile?
Often, yes. Mobile works best with shorter, common files such as MP4, MOV, WebM, or MKV. For long videos, 4K footage, or unusual codecs, a desktop browser is usually more reliable.