Audio Compressor
Reduce audio file size by adjusting bitrate (WebM/Opus format).
Upload Audio
MP3, WAV, OGG, etc.
Target Bitrate:
How to Compress Audio Files
- Upload Audio: Click "Select Files" or drag & drop your audio files (MP3, WAV, etc.).
- Select Bitrate: Choose a target bitrate from the dropdown menu. Lower bitrate means smaller file size but lower quality.
- 64 kbps: Best for speech or voice recordings.
- 128 kbps: Standard quality for music streaming.
- 192+ kbps: High quality for detailed listening.
- Start Compression: Click "Start Compression" to process the files locally.
- Download: Save the compressed audio files (output format is WebM/Opus for maximum efficiency).
Features
- Efficient Compression: Uses the modern Opus codec (WebM container) to achieve high quality at low bitrates.
- Batch Processing: Compress multiple files at once.
- Privacy First: Files are processed entirely in your browser and never uploaded to any server.
- Free & Unlimited: No usage limits or file size restrictions (bounded only by your device memory).
FAQ
Why is the output file a .webm file?
We use the WebM container with the Opus audio codec because it offers superior compression efficiency compared to older formats like MP3, especially at lower bitrates.
Will it reduce the quality?
Compression always involves some quality trade-off. However, by choosing an appropriate bitrate (e.g., 128 kbps or higher), the difference is often indistinguishable to the human ear.