Audio

Audio Converter≈

Convert audio-only files to MP3, WAV, FLAC, OGG, AAC or M4A locally in your browser.

Tools will load when you run.
Audio output

Up to 10 minutes and 128 MiB per file, including the output. Accepts audio-only files. For videos, use Extract audio from video. Exports stereo audio at 44.1 kHz; WAV uses 16-bit PCM. WAV and FLAC ignore the bitrate setting. Converting cannot restore detail already lost. Keep your original file. Processing starts after the local engine loads automatically.

How to use Audio Converter

  1. Choose your MP3, WAV, FLAC, OGG, AAC, M4A, AIF, AIFF, OPUS, WMA.
  2. Upload an audio-only file, up to 128 MiB and 10 minutes, then choose its output format and bitrate. Video files are not accepted.
  3. Convert and download the audio. Lossy formats discard detail; WAV and FLAC cannot restore detail already lost.

Process multiple files

Use a workflow to apply the same settings to each file.

Formats and requirements

Input formats
MP3, WAV, FLAC, OGG, AAC, M4A, AIF, AIFF, OPUS, WMA
Output
Depends on the selected output options
Availability
Free in your browser and through the CLI
Files per operation
1
Browser file limit
128 MiB per file, 128 MiB total

What to expect

Convert audio-only files to MP3, WAV, FLAC, OGG, AAC or M4A locally. Video inputs are not accepted. Up to 10 minutes and 128 MiB input/output. Lossy formats discard audio detail; keep the original.

Do my files leave my device?

No. Thanks to advanced file-processing technology, your files are processed directly on your device, inside your browser. OneKit does not receive your input files or results. Required public processing libraries may download when you first use the tool.

File privacy and local processing →

Install OneKit

Keep OneKit in its own app window, with a shortcut on your device.