Audio Converter

Convert audio between WAV, Opus, AAC, M4A, and Ogg in your browser. Bitrate control is available for lossy AAC and Opus targets.

What it does

Drop an audio file, pick the target format, pick a bitrate for lossy targets, and the encoder produces the converted file. WAV output writes uncompressed PCM.

Bitrate dropdown is hidden for WAV because uncompressed PCM bitrate is determined by sample rate, bit depth, and channel count.

Format quick guide

M4A/AAC — broadly compatible and efficient for music, voice memos, and Apple ecosystem workflows.

Opus (in Ogg) — best quality-per-byte for modern browsers and chat sharing.

WAV — uncompressed PCM for editing handoff, with large files and no quality loss from compression.

How to use it

  1. Drop the audio file — Any common audio format.
  2. Pick format and bitrate — Opus 64–96 kbps works well for voice. AAC/M4A 160–192 kbps is a practical music default. WAV is best when another editor needs uncompressed audio.
  3. Process and download — The encoded file downloads as soon as it's ready.

When to use it

Format compatibility

Need a browser-friendly file instead of a large WAV? Convert to AAC/M4A or Ogg Opus without uploading.

Bitrate reduction

Slim down a podcast library by re-encoding to 96 kbps mono — spoken content rarely needs more.

Editing handoff

Export WAV when you need uncompressed PCM for a DAW, NLE, or archival processing step.

FAQ

Why are MP3 and FLAC not output choices?
The installed browser encoder set supports AAC, Opus, and PCM. MP3 and FLAC metadata can still be inspected, but creating new MP3/FLAC files would require optional Mediabunny encoder extensions that are not bundled here.
Why is there no bitrate setting for WAV?
WAV is uncompressed PCM — bitrate is sample-rate × bit-depth × channels, not a free parameter. Adjust sample rate via the Audio Resampler if you need to shrink WAV.