Convert audio files
MP3, WAV, AAC, OGG and FLAC in any direction.
Runs on your device — never uploaded
Drop a file here or click to browse
Accepts .mp3, .m4a, .wav, .aac, .ogg, .flac, .mp4, .mov, .webm, .mkv, .avi, .m4v. Nothing is uploaded.
How to convert audio files
- Add a file
Drop any audio or video file.
- Pick the format
Choose the output format and bitrate.
- Download
Preview and save.
Frequently asked questions
Is my video uploaded?
No. FFmpeg runs as WebAssembly inside your browser tab. Nothing leaves your device.
Why does the tool take a moment to start?
The FFmpeg engine (~30 MB) downloads once on first use and is then cached on your device for instant starts later.
Which format should I use?
MP3 for compatibility, AAC/M4A for Apple devices, FLAC or WAV for lossless archives, OGG for open-source projects.