Audio Bitrate Changer

Choose 64, 96, 128, 192, 256 or 320 kbps, then generate and listen to the MP3. Lower values usually save space; higher values allocate more encoding data to the sound. Compare size and listening quality and keep the source.

Bitrate describes the audio data saved per second. A 60-second track at 128 kbps uses approximately 0.96 MB of audio data, plus tags and file overhead. Lower bitrate can lose detail; unchanged sound quality is not guaranteed.

It cannot restore missing detail. Converting a low-bitrate MP3 to a higher bitrate usually makes a larger file. Start with an original or higher-quality source where possible and avoid repeated lossy conversions.

It does not intentionally change speed or pitch. The whole track retains its order and duration, subject to small encoding differences. Use Audio Speed Changer or Pitch Changer for those effects.

This tool generates MP3 at the selected bitrate. WAV does not use the same MP3 bitrate settings. Use an audio converter for WAV instead of simply changing the filename extension.

Source audio is limited to 10 MB and 30 minutes, with MP3 output up to 150 MB. A lower output bitrate does not relax the input size limit; shorten or reduce an oversized source first.

No account is required and the tool is currently free. Download results before closing or refreshing the page. Initial loading needs an internet connection; processing speed depends on the device and file size.