Omnipus

Audio converter — MP3, WAV, M4A, OGG, FLAC

Runs on your deviceFreeNo account

How to use Audio converter

Drop an audio file, choose the output format and bitrate, and tap Convert. The FFmpeg engine (~31 MB) downloads the first time and is cached. Download the result when it is ready.

1

Add your file

Drag & drop, browse files, or press Ctrl+V to paste from the clipboard where supported.

2

Process in the browser

Work stays in this tab with WebAssembly, Canvas, or other on-device APIs — your file is not uploaded to Omnipus.

3

Download or share

Save the result to your device, or share it with the OS share sheet when available.

Direct share: Install Omnipus as an app on Android to share files and links into this tool from other apps.

About this tool

Convert audio files between MP3, WAV, M4A (AAC), OGG (Vorbis), and FLAC with FFmpeg running in WebAssembly. Inputs include MP3, WAV, M4A, AAC, OGG, Opus, and FLAC. Choose the bitrate for MP3 and M4A. Converting a lossy file (MP3, AAC, Opus) to WAV or FLAC makes it bigger but cannot restore detail that was already removed. Files up to about 100 MB, never uploaded.

#audio converter#convert audio#flac to mp3#audio file converter#convert to mp3

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Frequently Asked Questions

Which bitrate should I pick for MP3?

192 kbps is a good default for music; 128 kbps is fine for speech; 320 kbps is the MP3 maximum.

Does converting MP3 to FLAC improve quality?

No. FLAC is lossless, so it keeps exactly what is in the MP3, including what MP3 already discarded.

Are my files uploaded?

No. FFmpeg runs in this tab.

Is Audio converter completely free to use?

Yes. Audio converter on Omnipus is free to use with no subscription paywall for the tool itself.

Are my files or data uploaded to any servers?

No. Audio converter processes your input locally in this browser tab. Your files and text are not sent to Omnipus. Some tools download an engine or model file the first time you use them; that is a download, not an upload.

Does Omnipus add watermarks to exported files?

No. Omnipus does not stamp a site watermark onto files you export from Audio converter.

Can I use Audio converter on my mobile phone?

Yes. Omnipus has touch-friendly controls and can be installed as an app. On Android you can also share files or links into tools from other apps.

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