Audio Compressor

Compress audio files online for free. Reduce file size by adjusting bitrate and sample rate. Supports MP3, AAC, OGG, WAV. Fast, easy, and no installation needed.

Drop your file here

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Audio files only (MP3, WAV, FLAC, AAC, OGG)

Your files never leave your device. All processing happens locally in your browser.

Compress audio files online by adjusting bitrate, sample rate, and output format to create smaller MP3, AAC, OGG, or WAV files.

Reduce audio size for sharing and publishing

Audio compression helps when podcasts, voice notes, music drafts, or recordings are too large for uploads, email, or storage.

Tune bitrate and format

Choose output settings that fit your needs, from smaller voice files to higher-quality audio for publication.

Common Use Cases

  • Shrink voice recordings before sending.
  • Reduce podcast draft size.
  • Compress audio for web downloads.
  • Prepare smaller files for storage or LMS upload.

How to Use This Tool

  1. 1Upload an audio file.
  2. 2Choose bitrate, sample rate, and output format.
  3. 3Start compression.
  4. 4Download the compressed audio.

Frequently Asked Questions

Which settings make audio smaller?

Lower bitrate and sample rate usually reduce file size, especially for spoken audio.

Will compression affect sound quality?

Yes, lower settings may reduce fidelity. Use higher bitrate for music and lower bitrate for voice notes.

Is it free?

Yes. You can use it in the browser without installing desktop software.

Useful For

A few nearby tasks this tool can help with.

Shrink voice notes and recordingsPrepare audio for messagingReduce podcast draft sizeSave lighter audio archives