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Compress OPUS Audio

Compress an OPUS file for free and reduce its size while maintaining good audio quality. Your file never leaves your device — all processing happens locally in your browser. All features are free to use.

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Select OPUS File

Drag and drop an OPUS file here, or use Paste (Ctrl + V / ⌘ + V) to quickly import a file

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Smaller Size Balanced Best Quality

How to Compress an OPUS File

  1. Why Compress an OPUS File?

    Although OPUS is already highly efficient, a high-bitrate audio file can still take up unnecessary storage space. Compressing an OPUS file can further reduce its size, helping save storage space and making the file easier to upload, share, and transfer.

  2. How to Compress an OPUS File?
    • Click Select OPUS File, or drag and drop your OPUS audio file onto the page.
    • Choose a compression mode: Smaller Size, Balanced, or Best Quality.
    • Click Compress to start compressing the OPUS file and reduce its size.
  3. When Should You Compress an OPUS File?
    • Music Storage

      A high-bitrate OPUS audio file can still take up storage space. Compression can further reduce its size.

    • Voice Recording Sharing

      Compressing a meeting recording, interview, or voice note makes the file easier to send through messaging apps and email.

    • Email and File Transfer

      A smaller OPUS file is easier to share through email and file transfer services with attachment size limits.

    • Website Audio Optimization

      A smaller OPUS file can reduce loading time and data transfer while improving the online listening experience.

    • Online Courses and Training

      Compressing a course recording or training audio file can reduce bandwidth usage and improve streaming performance.

    • Cloud Storage Management

      Compressing an OPUS file can reduce the storage space required for long-term cloud storage.

    • Mobile Storage Optimization

      Phones and tablets have limited storage. Compressing an OPUS file can help free up available space.

    • Business and Team Collaboration

      A compressed meeting recording, training audio file, or project voice recording is easier to share and manage.

    • Online Communication and Streaming

      A smaller OPUS file can reduce data transfer and is useful for online communication and streaming.

    • Backup and Archiving

      Compressing an OPUS file can reduce the storage space required for backup and long-term archiving.

  4. Privacy and Security
    • 100% local processing — Your file never leaves your device. All compression is performed securely in your browser.
    • No file uploads — Your file is not sent to a server and remains under your control.
    • Privacy-first — We do not view, store, or collect your file data.
    • No registration required — Open the tool and start compressing immediately.
    • Your original file stays unchanged — The compressed version is created as a new file.