Customisable Audio Converter & Compressor

Our Online MP3 Converter is a free tool that helps you reduce the file size of your MP3 and WAV audio files. The entire process happens directly in your web browser. Your files are never uploaded to a server, guaranteeing 100% privacy and security.

How It Works

Our tool uses an advanced in-browser engine to process your audio quickly and securely right on your own computer.

  1. Upload Your File: Select an MP3 or WAV file from your device.
  2. Secure Processing: Our powerful engine converts your audio to a new MP3 file at your chosen quality setting. This happens locally, so your data stays with you.
  3. Preview & Download: Listen to the new, smaller audio file instantly and download it to your device.

Key Features

  • Complete Privacy: Your audio files are never sent over the internet. All conversion work is done on your computer.
  • Supports MP3 & WAV: Easily convert and compress the two most popular audio formats.
  • Adjustable Quality Slider: Use the simple slider to control the final file size and audio quality.
  • High-Performance Conversion: Our efficient engine ensures a fast conversion that won't slow down or freeze your browser.
  • Drag & Drop Simplicity: Just drag your audio file onto the page to get started.
  • Live Progress Updates: A real-time progress bar shows you exactly how the conversion is going.
  • Instant Audio Preview: Use the built-in players to compare the original and new audio side-by-side before you download.
  • Clear Size Comparison: See exactly how much space you've saved with a simple results card.
  • Light & Dark Mode: Choose a theme that's easy on your eyes.

How to Compress Your Audio (Step-by-Step)

  1. Step 1: Upload Your File
    Drag and drop your MP3 or WAV file onto the upload area, or click to select a file from your device.
  2. Step 2: The File is Prepared
    The tool will quickly analyze your file. You'll then see its details and be able to play the original version.
  3. Step 3: Adjust the Bitrate
    Use the slider to set your desired quality. A lower bitrate (e.g., 128 kbps) creates a smaller file, while a higher bitrate (e.g., 192 kbps) preserves more quality.
  4. Step 4: Convert Your Audio
    Click the "Convert Audio" button. The progress bar will show you the status in real-time.
  5. Step 5: Preview and Download
    When finished, listen to the new version to check its quality. If you're happy, click "Download File". To process another file, just click "Start Over".

Find Our Tool

MP3 Compressor, Audio Compressor, Reduce Audio Size, WAV to MP3, Online Converter, Change MP3 Bitrate, Free Audio Compressor, Audio Optimizer, Private Converter, Make MP3 Smaller, Compress WAV File, MP3 Size Reducer.