Drag & drop audio or video files here, or click to select
Convert between MP3, WAV, FLAC, AAC, OGG, OPUS, M4A, M4R — or extract audio from video
An audio converter is essential for changing audio files between different formats. Our free online audio converter lets you convert audio files between MP3, WAV, FLAC, AAC, OGG, OPUS, M4A, and even create iPhone ringtones (M4R). It also extracts audio from video files like MP4, MOV, AVI, MKV, and WebM — all directly in your browser using FFmpeg WebAssembly.
Processing happens entirely in your browser — your files 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 files and convert them all at once, downloading individually or as a ZIP archive.
The interface is clean and intuitive. Upload files by clicking or dragging into the drop zone, select your desired output format, adjust advanced settings like bitrate and sample rate, and click convert. Real-time progress shows the FFmpeg loading steps and conversion percentage.
From music lovers converting FLAC to MP3 for portable players, podcasters optimizing audio for distribution, video editors extracting soundtracks, to iPhone users creating custom ringtones — this tool handles it all. No software to download, no account needed, no server uploads — just instant, private audio conversion.
Tip: The first conversion loads FFmpeg (~25 MB) — allow a few seconds on a good connection. Subsequent conversions start instantly.
Converts audio files between different formats (MP3, WAV, FLAC, AAC, OGG, OPUS, M4A). Also extracts audio tracks from video files.
Yes, completely free with no hidden charges, subscriptions, or file limits. Convert unlimited files. No watermarks.
No. Start converting immediately without signing up or providing any personal information.
Your files never leave your device. Processing uses FFmpeg WebAssembly locally in your browser after the initial CDN download. No server upload occurs.
Input: MP3, WAV, FLAC, AAC, OGG, M4A, OPUS, MP4, MOV, AVI, MKV, WebM (and more). Output: MP3, WAV, FLAC, AAC, M4A, OGG, OPUS, M4R.
WAV and FLAC are lossless (perfect quality). For compressed files, MP3 at 320 kbps or AAC provide excellent quality.
Yes, batch convert multiple files. Each file is processed sequentially. Single files download directly; multiple files download as a ZIP archive.
Up to 2GB per file. For very large files, ensure you have sufficient browser memory available.
Yes! Select M4R as the output format. The tool converts your audio to the iPhone ringtone format (.m4r).
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.
Audio files come in many formats — MP3 for portable players, WAV for professional editing, FLAC for audiophiles, AAC for Apple devices, OGG and OPUS for open-source enthusiasts, and M4R for iPhone ringtones. Converting between these formats used to require installing heavy software or uploading your files to unknown servers. Our free online audio converter solves both problems. It runs FFmpeg WebAssembly directly in your browser — your files never leave your device.
An audio converter changes the format, bitrate, sample rate, or channel configuration of an audio file. It can also extract the audio track from a video file and save it as a standalone audio file. FFmpeg — the industry-standard multimedia framework compiled to WebAssembly — processes your files entirely in-browser.
Whether you need to convert MP3 to WAV, extract audio from video, create an iPhone ringtone, or batch convert audio files, our free online audio converter is the fastest, most private solution. No uploads, no software, no costs — just instant, browser-based audio conversion. Try it now.