Free Online Audio Compressor
Reduce audio file sizes for easy emailing, messaging, and web publishing. Select target compression levels and preview exact size savings.
How can I reduce the file size of an audio file without losing quality?
To compress an audio file without noticeable quality degradation, upload it to BrowserConvert's Audio Compressor. Choose a balanced compression preset (such as 128 kbps or 192 kbps) which discards inaudible frequencies while keeping voices and instruments crisp. An uncompressed WAV file shrinks by up to 85% into a lightweight MP3, all processed locally in your browser.
Select an audio file to compress
Supports WAV, FLAC, AIFF, MP3, M4A, OGG
How to Compress Audio Files Online
1. Upload Track
Select any MP3, WAV, FLAC, or M4A file from your device.
2. Select Quality Preset
Choose from Light (192 kbps), Medium (128 kbps), or Maximum compression (96 kbps).
3. Compress & Save
Click “Compress Audio” to process locally and download your compact audio file.
Frequently Asked Questions About Audio Compression
How does audio compression work on BrowserConvert?
BrowserConvert compresses audio by re-encoding uncompressed or bloated audio files into high-efficiency MP3 or AAC codecs with optimized bitrates (such as 128 kbps or 96 kbps) and mono channel downmixing where appropriate, cutting file sizes by 50% to 85%.
Will compression make my audio sound muffled or robotic?
No. By using modern perceptual encoding presets (such as High Quality 192k or Medium 128k), speech, podcasts, and music retain crisp clarity while shedding redundant frequency data.
Can I compress audio to email it or send via messaging apps?
Yes. Most email services limit attachments to 25 MB. Compressing an uncompressed 60 MB WAV file reduces it down to approximately 4 MB to 7 MB, making it effortless to send as an attachment.