100% local · 0 uploads · open source
Drop an MP4, MOV, MKV, WebM, AVI, or FLV into the panel on the right and pull back MP3, WAV, AAC, M4A, FLAC, OGG, or Opus. The whole job runs on your own CPU, inside the tab — no queue, no signup, no daily cap, no watermark.
interview-final.mp4
742 MB · H.264 / AAC · 47 min
Output
MP3
Bitrate
192 kbps
Size
64.8 MB
interview-final.mp3
Saved locally · never uploaded
Try it
Drop a video here, or click to choose
MP4, MOV, MKV, WebM, AVI and more — your file never leaves this browser.
100% local
Files never uploaded.
Seconds, not minutes
WebCodecs streaming engine.
No size cap
Multi-GB inputs supported.
Open source
Every line on GitHub.
Conversion runs inside your browser tab with WebCodecs and a small WebAssembly fallback. No upload, no server processing, no temporary cloud copy. Disconnect your Wi-Fi after the page loads and the converter still works.
Outbound bytes
0
Server copy
None
Retention
0 s
No cap
Streaming engine handles multi-gigabyte MP4, MOV, MKV, WebM in real time.
5 KB primary
MediaBunny (WebCodecs) for MP4 · MOV · MKV · WebM. FFmpeg WASM only for legacy formats — and only on demand.
Who uses this
Tuned for the four everyday jobs that cover most of the real soundtrack extraction work — not a research toy.
Usually MP4 or MOVRiverside, Zencastr, Descript, and Zoom all save an MP4 even when you only need the soundtrack. Strip the picture track and ship a clean MP3 to your feed.
MP4 / WebM / MKVRecorded Zoom, Teams, Webex, and Google Meet sessions turn into long, voice only MP3s perfect for commutes. Webinars and MOOC exports work the same way.
MOV (iOS) · MP4 (Android)Capture a tutorial, voice memo, or product walkthrough on your phone, AirDrop or share it here, and walk away with a sound only MP3 ready to paste into a podcast feed.
MKV · AVI · WMVOld camcorder AVIs, Blu-ray rip MKVs, music sets from your own library — pull out the soundtrack without dragging the whole file into a heavy editor.
The honest comparison
The default web tools — CloudConvert, Zamzar, 123apps, Convertio — all do the same thing: take your file, park it on their servers, and charge you in time or money for the privilege. Here is what changes when the work moves into your tab instead.
Privacy story
Every other so called private tool still ships your file to a backend. We made a simpler architectural choice: skip the backend altogether.
DevTools proof
Open the Network panel, start a run, watch zero upload requests fire. Nothing to take on faith.
Runs offline
After the first page load, you can cut the Wi-Fi entirely. The job still completes. Try it.
No retention, no logs
There is no backend anything. Your file is read into a short lived buffer inside the tab, processed, and discarded.
Cookieless analytics
Plausible counts page views without tracking individuals, without cookies, and without storing IP addresses.
How it works
Pick a source clip
Drag and drop, or click to browse. Your file stays on your machine.
Choose an export target
MP3, WAV, AAC, M4A, FLAC, OGG, or Opus. Tune the bitrate if you want.
Save the soundtrack
The job runs inside this tab. Save the output when the bar finishes.
Output format guide
Seven export targets feel like overkill until you need FLAC for an archive or Opus for podcast distribution. Quick map of when to reach for which.
MP3
Voice, music for general use
The universal default. Plays in every car stereo, every Bluetooth speaker, every device older than ten years. Reach for it when in doubt.
M4A (AAC)
Apple ecosystem
Better fidelity than MP3 at the same bitrate. The Apple native pick for iTunes libraries, iPhone ringtones, and AirPods listening.
WAV
Editing master
Uncompressed, bit accurate copy of the source soundtrack. Use it as a master when you plan to edit further in Audacity, Audition, Logic, or Pro Tools.
FLAC
Lossless archive
Lossless like WAV, but roughly half the file size. The audiophile pick for music archives, Hi-Fi playback, and offline collections.
OGG Vorbis
Open format pipeline
Royalty free open format. Useful for web players, game soundtracks, and open source projects where MP3 licensing matters.
Opus
Modern streaming
The most efficient modern codec. Best quality per kilobyte — ideal for podcasts, voice clips, and low bandwidth streaming.
Help
Yes, the whole tool is free with no daily cap, no signup wall, and no upsell. The job runs on your own machine, so there is no backend bill to recover. No ads either, and the only telemetry is a cookieless page view counter.
Never. Bytes stay inside this page. You can prove it: open DevTools, watch the Network panel during a run, and confirm zero outbound traffic. You can also pull the plug on Wi-Fi after the page loads — the video to audio converter still finishes the job.
MP4, MOV, MKV, WebM, AVI, FLV, WMV, 3GP, and MPEG. Modern containers run on the fast WebCodecs path; older ones fall back to a WebAssembly engine so coverage stays wide.
MP3, WAV, AAC, M4A, FLAC, OGG Vorbis, and Opus. Reach for MP3 when you want a universal default, M4A on Apple gear, WAV or FLAC for lossless masters, and Opus when bandwidth matters.
Not on the streaming path that handles MP4, MOV, MKV, and WebM — multi gigabyte inputs are fine. Legacy containers like AVI or FLV use a slower fallback that tops out near 2 GB because of the browser's WASM memory ceiling.
Yes. iOS Safari 16.4 and later, plus Chrome on Android, both ship the WebCodecs and WASM features required. Very long clips on low RAM phones may need a little patience; nothing leaves the device either way.
Those tools push your file to their backend, run the job there, and hand you a download link. Your data sits on their disks under their retention policy. Here the same job runs on your own CPU and nothing ever transits the public internet.
No. We do not pull from YouTube, TikTok, or other streaming sites. If you legally hold a clip — your own export, a saved interview, footage you own — drag it in and we will strip the soundtrack. Anything beyond that lives in a gray area we stay out of.
192 kbps is the sweet spot for talking heads, lectures, and podcast cuts. Go 320 kbps for music or anything where fidelity matters. Drop to 128 kbps when the source is voice only and you want the smallest possible output. WAV and FLAC are lossless and ignore the bitrate setting.
Yes, MIT licensed. The whole codebase — including the WebCodecs glue and the WASM fallback — sits in a public repository. Audit it, fork it, or self host it on Cloudflare Pages in minutes.
Yes. Once the page has loaded, the engine, codecs, and UI are cached. Turn off the network and try again — the job still completes. That is the simplest proof of the local only design.
Those are downloaders for social posts and short clips. We are a strict offline tool: bring your own file and we will pull the soundtrack. We never fetch remote URLs and we never ingest anything from social networks.
Absolutely. The exported MP3, WAV, M4A, or FLAC plugs cleanly into a BandLab session, a TurboScribe transcript run, or any audio merger you already use. Treat this page as the lightweight first stop in a longer workflow.
Most rivals route the bytes through a backend and gate the highest quality behind a paid tier. Ours runs locally, exports MP3 at any bitrate up to 320 kbps, and covers six other targets too — no plan, no queue, no watermark.
Yes. Drop a recording from Riverside, Zencastr, Descript, or Zoom and pull a clean MP3 straight into your feed. Bitrate, channel count, and sample rate are all adjustable before export.
Yes. AVI, WMV, FLV, and 3GP all route through the legacy WASM engine. It is slower than the WebCodecs path, but the output MP3, WAV, or M4A is bit accurate against the source soundtrack.
Drag in several files and they queue up one after another. Because everything runs on your device, a batch only competes with your own CPU and RAM — no shared cloud quota slowing the queue down.
No. Encrypted streams from paid services, store rentals, or platform downloads are out of scope on purpose. Bring a clean source file and the video to audio converter will gladly do its job.
Not on its own — this video to audio converter is focused on the extraction step. For a true audio merger workflow, pipe the exported MP3, WAV, or FLAC into BandLab, Audacity, or a dedicated audio editor and stitch tracks there.
Never a watermark, never an overlay. Audio quality is decided purely by the codec and bitrate you pick in the converter. Lossless WAV and FLAC are bit accurate against the source soundtrack; MP3, AAC, and Opus follow the bitrate you set.
Yes. Drop a video clip, pick an audio target, hit go. The same browser based video to audio converter behaves as both an online video converter and an online audio converter, depending on which output you ask the engine to render.
Yes. A studio export, a Logic bounce, or a Pro Tools video reference render all open here. Drop the video file into the converter and pick MP3, WAV, M4A, or FLAC for a clean audio download that mirrors the source soundtrack.
It covers the same job as any video to mp3 converter, but the job runs locally. Pop in a clip, pick MP3, and the converter renders the soundtrack in your tab — no upload, no queue. The same flow works for any video to audio target the converter supports.
Yes. Students, teachers, and small studios use the converter for class recordings, podcast assignments, and lecture archives. It is a free video to audio converter with no plan tiers and no daily cap, so a whole class can run a video to audio download at the same time.
A 60 minute MP4 to MP3 job usually finishes in under five seconds on a modern laptop. The fast WebCodecs path inside the converter streams the file, so the video to audio mp3 converter behaviour scales with your CPU rather than a shared cloud queue.
Straight to your downloads folder. The video to audio converter never holds a server side copy of the audio file, so once you save the MP3, WAV, or FLAC, the only audio file in existence is the one on your disk.
Yes. If you already have a sound only file, this video to audio converter will happily re-encode it. Treat it as a flexible audio converter that handles cross format MP3, WAV, AAC, M4A, FLAC, OGG, and Opus output, in addition to its main video to audio converter role.
Yes. Any modern Chrome based browser turns the page into a fully working online video to audio converter — no install, no admin permissions. Because nothing leaves the device, even a shared library workstation is safe: the audio converter clears its buffers the moment you close the tab.
Yes. Drop a clip, pick MP3, hit go. That single tap covers the classic video to mp3 convert audio flow without leaving the video to audio converter — the engine renders an MP3 directly, no intermediate WAV detour required.