LocalcraftTHE EVERYDAY TOOLKIT
LOCAL FILES. CLEAR RESULTS.

Audio converter

Convert WAV, OGG, M4A, FLAC and OPUS audio to MP3, WAV or OGG locally, with selectable bitrate.

About this tool

A flexible audio converter for the formats that recorders, editors and browsers actually produce: it reads MP3, WAV, OGG, OGA, M4A, AAC, FLAC and OPUS, and writes MP3, WAV or OGG, with a selectable bitrate for the lossy outputs. Typical jobs are turning a WAV recording into an MP3 for sharing, preparing OGG audio for a web or game project, or exporting a WAV master for editing.

Conversion cannot improve quality — encoding an already compressed file again only preserves or reduces what is there — so the practical rule is to archive in WAV or FLAC and share in MP3 or OGG. The first audio stream is converted; files without one are rejected. FFmpeg runs the whole job on your device.

How to use Audio converter

  1. Choose up to four audio files from your device.
  2. Pick the output format and bitrate (MP3 and OGG).
  3. Run the conversion, preview each result and download individually or as a ZIP.

Keep the original files and inspect the exported result before publishing or sharing it.

Frequently asked questions

Which conversions are supported?

Inputs: MP3, WAV, OGG, OGA, M4A, AAC, FLAC and OPUS. Outputs: MP3, WAV or OGG. The first audio stream is converted.

Does converting improve audio quality?

No. MP3 and OGG are lossy; re-encoding a compressed source cannot restore detail. Higher bitrate only increases file size.

WAV, MP3 or OGG?

WAV is lossless but large. MP3 plays everywhere. OGG is efficient at lower bitrates. Choose WAV for archiving or editing, MP3 or OGG for sharing.

Are my files uploaded?

No. FFmpeg runs on your device. The engine assets (about 32 MB) download on first use; your audio stays in browser memory.

What are the limits?

Up to 4 files per batch, 150 MiB each and 250 MiB total. Files without an audio track are rejected.

Related tools