Audio Compressor Online Free
A free audio file compressor for reducing file size while keeping quality. Supports MP3, WAV, FLAC, OGG, AAC, and other formats with adjustable quality settings — all in your browser.
How to Compress Any Audio File
1
Drop your audio file onto the page — format is detected automatically
2
Review the detected codec and adjust compression settings or pick a preset
3
Check the estimated file size and reduction percentage
4
Click Compress and download the smaller file in the same format
Shrink any audio file while keeping it sounding great
Drop audio file here
MP3, WAV, FLAC, M4A, OGG, OGA, AAC, AIFF, AIF, WMA, OPUS ·
Upload a file to start
File:
Size:
Duration: —
Bitrate: —
Compression Settings
Output Format
Detected format is pre-selected. Change to convert during compression.
Compression goal
Target file size 5.0 MB
0.5 MB50 MB
Calculated bitrate: — kbps
Email
Max 25 MB
WhatsApp
Max 16 MB
Discord
Max 25 MB
Telegram
Max 2 GB
Custom bitrate 128 kbps
Target bitrate is equal to or higher than the source. The file will not get smaller.
PCM formats (WAV, AIFF) store uncompressed audio. Reduce file size by lowering bit depth, sample rate, or switching to mono. For maximum compression, select a lossy output format.
FLAC is a lossless format — compression level is optimized automatically. Use sample rate and channel settings for smaller files, or select a lossy output format above.
Sample Rate
Channels
Bit Depth
Encoding Mode
VBR Quality
Encoding
FLAC Compression Level
Higher = smaller file, slower encoding 5
Encoding Mode
Vorbis Quality 5
Metadata
Original size —
Estimated size —
Reduction —
0%
Listen to a 30-second sample before compressing
Compare Quality Levels
New size
—
Saved
—
Compare Original vs Compressed
0:00 / 0:00
Published
Updated
