Audio Extractor From Video
Extract the audio track from your video
Drop a video file here, or choose one from your device
Choose a video
MP4 / MOV / MKV / WebM / AVI / FLV / MPEG / MPG · MP3 output · Up to 10 files, 2GB total
How to extract audio from a video in 3 steps
Step 1 — Add your video
Drag a video into the box or choose a file from your device. Supported inputs include MP4, MOV, MKV, WebM and AVI, as well as FLV, MPEG and MPG.
Step 2 — Extract as MP3
Click Convert to extract the audio as MP3. This tool currently offers MP3 only, with an automatic variable-bitrate quality profile; there is no output-format or bitrate selector.
Step 3 — Download the audio
Download each completed MP3, or download completed files together as a ZIP. Play the result before deleting your original video.
Why extract audio in the browser instead of installing an app
Most "audio extractor" apps for phones ask you to install 80–200MB, grant file access, and often cap extraction behind a subscription. A browser-based extractor does one thing: you hand it a video file and it hands back an audio file. No install, no account, no upload to a server — the decoding happens on your own device, which also means your file never leaves your computer.
No upload — what actually happens to your file
When you select a video, the browser reads it on your device. The conversion engine loads into the browser, decodes its audio track and encodes an MP3 locally. The converter does not send your selected video to a conversion server. An internet connection is needed to load the site and conversion engine; browser processing still uses your device’s memory and CPU. This audio extractor from video online free workflow does not require an account.
What happens to audio quality during extraction
MP3 is a lossy format, so extraction always re-encodes the audio track rather than copying it bit for bit. This tool uses an automatic variable-bitrate profile: quiet, simple passages take fewer bits and complex passages take more, which usually gives a better size-to-quality ratio than a fixed low bitrate. There is no manual bitrate or sample-rate selector. The result also depends on the source. A phone MOV usually contains AAC audio that has already been compressed once, so converting it to MP3 adds a second lossy step. A camera file with high-quality PCM audio has more detail to work with, but the MP3 still cannot preserve everything. If an exact bitrate, sample rate, channel layout, or lossless output matters, use FFmpeg or another encoder where you can set those parameters. For listening, transcription, and sharing, the automatic profile is usually adequate. Compare the MP3 with the original before deleting the video, and avoid converting the same audio back and forth between formats.
Common reasons to extract audio from a video
Turn a recorded talk into a podcast file
A conference talk, lecture, or interview recorded on a phone often arrives as a MOV or MP4. Extracting the audio gives you a smaller file that plays in podcast apps, car stereos, and transcription tools without carrying the video track.
Keep the sound from a screen recording
Screen recordings are usually made for a visual walkthrough, but the narration is often the part you want to reuse. Extracting the audio lets you keep the explanation while discarding a large, mostly static video.
Separate dialogue or music for editing
If you only need the spoken part or a music cue, an MP3 is easier to drop into an audio editor than a video container. Check that you have permission to reuse the recording before publishing it.
Make a long video listenable on the go
A two-hour recording is awkward to scrub through on a phone. An audio-only copy is easier to resume, store offline, and play where video playback is inconvenient.
Browser extractor, desktop encoder, or cloud converter
This browser tool
No install or account. The file stays on your device and processing uses your browser's memory. Best for occasional single files or small batches, and for recordings you would rather not upload. Limited by browser memory, and it outputs MP3 only.
Desktop encoder such as FFmpeg or VLC
Faster for large files and batches, with full control over codec, bitrate, sample rate, and channels. It requires installation and a command or menu workflow. The better choice for long recordings, unusual codecs, or repeatable production jobs.
Cloud converter
Accepts files without using your device's CPU and may offer more output formats. The trade-off is that your file leaves your device and is processed on someone else's server, with retention rules you have to trust. Avoid it for confidential or client material.
Supported formats and what output you should pick
| Input format | Support |
|---|---|
| MP4 | Extract audio from MP4 to MP3. |
| MOV | Extract audio from compatible camera, iPhone and QuickTime videos. |
| MKV / WebM / AVI | Supported video containers; conversion depends on the audio codec inside. |
| FLV / MPEG / MPG | Supported inputs for MP3 extraction. |
| Output format | Bitrate | Best for |
|---|---|---|
| MP3 | Automatic variable bitrate (VBR); no manual bitrate selection | Podcast listening, dialogue, voice recordings and music playback. |
MP3 is the only output offered here. M4A and WAV are not available. A supported extension does not guarantee a supported audio track. MP3 encoding is lossy; keep the original when source quality matters.
Extract audio from video on iPhone and Android
Open this page in your mobile browser and tap Choose a video. On iPhone, use Safari’s file picker to select an accessible video from Photos or Files; the available choices depend on your device. On Android, select a video through the browser’s file picker. Start conversion and keep the tab in the foreground until it finishes. Then download the MP3 and check your browser’s downloads or Files app.
Phones have less memory available for browser conversion than many desktops. Start with one short clip, avoid switching apps during conversion, and try a smaller file or desktop browser if processing fails. The 2GB queue limit is an upper bound, not a guarantee that a phone can convert a file of that size.
Common problems and how to fix them
The conversion stops or the tab crashes
This usually means the browser ran out of memory. Close other tabs, try a smaller file, or convert one file at a time instead of a full queue. On a phone, a file that works on a desktop may still be too large.
The MP3 is silent
The video may have no audio track, or its audio codec may not be decodable in the browser. Play the original and check that sound exists. Some screen recordings store audio separately, and that track is missing if you export only the video.
The file is rejected before conversion starts
Check the extension and the queue limits: up to 10 files and 2GB in total. Renaming a file does not change its real container or codec. A .mov that is actually a different format may fail.
Safari runs out of memory
Mobile Safari gives a tab less memory than desktop browsers. Keep the page in the foreground, avoid switching apps, turn off low-power mode if possible, and start with a shorter clip.
The MP3 sounds worse than the video
Re-encoding to MP3 is lossy, and low-detail source audio can become thinner. Listen with the same headphones or speakers and compare. If quality is critical, encode from the original with a desktop tool and a higher bitrate.
FAQ
How do I extract audio from a video for free?
Add a supported video above, click Convert and download the MP3. The core converter is free and does not require signup.
Can I extract audio from a video online without downloading anything?
You do not need to install an app. Your browser downloads the website and conversion engine, processes the video locally, and lets you save the resulting MP3.
What is the best free audio extractor?
Choose one that fits your input format, device and output needs. This tool suits local video-to-MP3 extraction without an account or server upload. If you need exact encoding settings or other output formats, consider a desktop tool such as FFmpeg or VLC.
How do I extract audio from a video on my iPhone?
Open this page in Safari, choose a video accessible through the file picker, and tap Convert. Keep Safari open while it runs, then download the MP3. Start with a small clip; large videos can exceed mobile browser memory.
Can I extract audio from an MP4 file?
Yes. Add your MP4 and convert it to MP3. The video must contain an audio track that the conversion engine can decode; a silent video cannot produce recorded sound.
Does extracting audio reduce quality?
This tool re-encodes audio to MP3, which is a lossy format. It does not copy the original audio bit-for-bit or restore detail missing from the source. Keep the original video and compare the result by listening.
Can I extract audio from a video longer than 10 minutes?
There is no specific 10-minute duration limit. Success depends on file size, codec, device memory and processing time. Longer recordings may fail or time out on constrained devices; try a desktop workflow if needed.
Is there a video length or file size limit?
The queue accepts up to 10 files with a combined size of 2GB. This is an acceptance limit, not a completion guarantee. Large files may trigger a device-risk warning, and conversion can fail if memory or processing time is insufficient.