Convert Video to MP3 Online
Extract high-quality audio from your videos directly in your browser. Free, private, and instant — your files never leave your device.
Video to MP3 Converter
MP4, MOV, MKV, AVI, WebM and more → MP3
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How to Convert Video to MP3
- 1
Select your video file
Drop your video onto the upload area or click "Choose Video" to browse. Supports MP4, MOV, MKV, AVI, WebM, and many more.
- 2
Choose MP3 quality
Select from 128 kbps (compact), 192 kbps (recommended), 256 kbps (high quality), or 320 kbps (maximum quality).
- 3
Convert in your browser
Click Convert. FFmpeg.wasm extracts the audio track entirely within your browser — no server, no upload, no waiting.
- 4
Download your MP3
When complete, click "Download MP3" to save the file to your device. Convert more files or close the tab — your privacy is intact.
Why Browser-Based Conversion?
Maximum Privacy
Your video files stay on your device. We use WebAssembly (FFmpeg.wasm) to run conversion entirely client-side — we never see your files.
No Upload Wait
Traditional converters require you to upload your file first — that alone can take minutes. Our approach is instant.
No Account Needed
No sign-up, no email, no credit card. Just convert and download.
Unlimited Use
No daily limits, no file count restrictions. Convert as many videos as you like.
Popular Converters
All free. All browser-based. All private.
Why Choose MediaConvertKit?
Fast, private, and free — every time.
100% Private
Your files never leave your device. Conversion happens entirely in your browser using WebAssembly — not on our servers.
Blazing Fast
Browser-based processing means no upload wait time. Start converting immediately after selecting your file.
Free Forever
No subscription, no credits, no registration required. Every tool on MediaConvertKit is completely free to use.
Works on Mobile
Fully responsive design works great on iPhone, Android, tablets, and desktop browsers.
High Quality
Choose from 128, 192, 256, or 320 kbps MP3 output. Get the quality you need for your use case.
No Software to Install
Works directly in your browser — no app download, no plugins, no extensions required.
Your Files Stay on Your Device
MediaConvertKit uses WebAssembly technology to run the FFmpeg conversion engine directly inside your web browser. Your video files are read from your local device, processed entirely within your browser session, and the output MP3 is written directly to your downloads folder — never passing through any server.
All File Converter Categories
Every tool processes files in your browser — no upload, no accounts, always free.
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Frequently Asked Questions
- Simply drop your video file onto the upload area above (or click "Choose Video"), select your preferred MP3 quality (128–320 kbps), and click "Convert to MP3". The conversion happens instantly in your browser — no upload required.