Audio Compression
Compress audio files with bitrate, sample rate, and channel controls
Privacy: FFmpeg WASM runs in this browser tab using your device. Large or long media can take more time and memory.
Drag files here or click to upload
Supported Formats: MP3, WAV, OGG, AAC, FLAC, WMA, M4A
Max File Size: 50MB | Max Files: 10
Compression Settings
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How this tool works
About Audio Compression
Use Audio Compression when the main goal is a smaller delivery file for upload, sharing, or archiving. This page is especially useful when voice memos, podcast previews, music references, or moderate-length recordings need to fit a browser-friendly workflow.
Best use cases
- Voice memo cleanup
- Podcast preview exports
- Attachment size reduction
- Batch audio delivery
Outputs and limits
- Smaller audio files for common delivery channels.
- Parameter-based size and quality trade-offs.
- Batch-friendly flow for multiple files.
Steps
- Upload the audio files you want to reduce.
- Adjust bitrate, sample rate, or channels based on your delivery goal.
- Process the files, compare the result, and download the compressed output.
A smaller file depends on the output codec
Reducing bitrate can shrink lossy formats such as MP3, but it trades away audio information. WAV output is uncompressed PCM, so lowering the lossy bitrate control does not make a same-format WAV export smaller.
- For a much smaller WAV source, use Audio Format Conversion to export MP3 or AAC, then listen for quality changes.
- FLAC is lossless, but it cannot recover detail that was already removed from a lossy source.