Drag & drop videos here, or click to select
(MP4, MKV, AVI, MOV, WEBM, FLV…)
A video to MP3 converter is essential for extracting audio from video files. Our free online video to MP3 converter lets you extract audio from video files — MP4, MKV, AVI, MOV, WEBM, FLV, and more — directly in your browser using FFmpeg WebAssembly. Whether you're a student extracting lecture audio, a professional saving meeting recordings, a content creator grabbing background music, or an everyday user converting personal videos, this tool makes converting video to MP3 fast and completely free.
Processing happens entirely in your browser — your videos never upload to any server. The tool uses FFmpeg compiled to WebAssembly, loaded once via CDN, then runs locally on your device. This ensures complete privacy. It supports batch conversion: upload multiple videos and convert them all at once, downloading individual MP3s or a ZIP archive. Supported input formats include MP4, MKV, AVI, MOV, WEBM, FLV, and any format your browser can read.
The interface is clean and intuitive. Upload videos by clicking or dragging into the drop zone, add more files anytime, remove individual files, and click convert. Real-time progress shows the FFmpeg loading steps and conversion percentage. Output quality uses the libmp3lame codec with a quality setting of 2 (roughly 192 kbps VBR) for excellent audio quality.
From students and podcasters to video editors, musicians, and anyone who needs to extract MP3 from video quickly, this tool delivers reliable results. It works on Chrome, Firefox, Safari, and Edge. No software to download, no account needed, no server uploads — just instant, private video-to-audio conversion.
Tip: The first conversion loads FFmpeg (~25 MB) — allow a few seconds on a good connection. Subsequent conversions start instantly. For best quality, use source videos with high-bitrate audio.
Extracts audio tracks from video files and saves them as MP3 audio. Works with MP4, MKV, AVI, MOV, WEBM, FLV, and other common video formats.
Yes, completely free with no hidden charges, subscriptions, or file limits. Convert unlimited videos. No watermarks.
No. Start converting immediately without signing up or providing any personal information.
Your videos never leave your device. Processing uses FFmpeg WebAssembly locally in your browser after the initial CDN download. No server upload occurs.
MP4, MKV, AVI, MOV, WEBM, FLV, and any format your browser can read. The file input accepts all video/* types.
Uses libmp3lame codec with quality setting 2 (roughly 192 kbps VBR). This provides excellent audio quality suitable for music, speech, and general use.
Yes, batch convert multiple videos. Each file is processed sequentially. Single output files download as MP3; multiple files download as a ZIP archive.
Browser memory limits apply since processing is local. For best performance, keep individual videos under 500MB on devices with 8GB+ RAM. Very large files may cause memory issues.
Chrome, Firefox, Safari, Edge, and Opera. Requires JavaScript and WebAssembly support.
Yes, fully responsive. Works on smartphones and tablets running Chrome, Safari, or Firefox.
The tool uses FFmpeg compiled to WebAssembly (~25 MB). It's cached by your browser after first download so subsequent visits load instantly.
Depends on video length and device speed. A 10-minute video typically converts in 20-60 seconds. Processing is local so there's no network delay.
Yes, click the STOP button. Already-completed files are preserved, and partial conversions are discarded.
Yes, for personal, academic, and commercial use without restrictions.
Video files are large, and sometimes you only need the audio — a song from a music video, a lecture recording, a podcast interview, or background audio from a presentation. Opening a video editor just to extract audio is overkill, and online converters that upload your files to servers raise privacy concerns and limit file sizes. Our free online video to MP3 converter solves both problems. It runs FFmpeg WebAssembly directly in your browser — your videos never leave your device. Whether you need to convert MP4 to MP3, extract audio from MKV, or convert any video to MP3, this tool delivers instant, private, professional results.
A tool that extracts the audio track from video files and saves it as an MP3 audio file. FFmpeg — the industry-standard multimedia framework compiled to WebAssembly — processes your video entirely in-browser. It strips the video stream and re-encodes the audio as high-quality MP3 using the libmp3lame codec.
No installation — runs in your browser. No server uploads — your files stay private. Cross-platform — works on any OS. Free — no subscriptions. Batch support — convert multiple videos at once.
Open the page, drag your video files onto the drop zone. Wait for FFmpeg to load on first use (~25 MB). Click "CONVERT TO MP3". Each video processes sequentially with progress shown. Download individual MP3s or a ZIP for multiple files. The entire process takes seconds for short clips.
Whether you need to convert MP4 to MP3, extract audio from a video, or convert video files to MP3 in batch, our free online video to MP3 converter is the fastest, most private solution. No uploads, no software, no costs — just instant, browser-based audio extraction. Try it now.