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Compress WAV

Convert WAV to MP3 for up to 90% smaller file size — free, no signup.

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Maximum file size: 50 MB

Your file is processed securely and deleted automatically after conversion. Your data is protected under GDPR.

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Download Compressed MP3
1 Select WAV
2 Compress MP3
3 Download Compressed MP3

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How to compress WAV

  1. Upload your WAV file (up to 50 MB).
  2. Choose a target sample rate and bit depth.
  3. Click 'Compress WAV' — takes 5-20 seconds.
  4. Download the smaller WAV.

Quick fact about WAV

WAV is uncompressed — the only way to reduce size without converting to MP3/FLAC is to lower the sample rate or bit depth. For CD-quality music, 44.1 kHz 16-bit is already optimal.

Why compress WAV?

WAV is uncompressed — every sample of the original recording is preserved, which makes files large. The main ways to compress WAV without changing format are: (1) lower the sample rate (e.g., 48 kHz → 44.1 kHz, or 96 kHz → 48 kHz), and (2) reduce the bit depth (e.g., 24-bit → 16-bit). This matters when a DAW expects WAV but size is a concern.

Technical details

Input format WAV (PCM)
Output format WAV (PCM)
Sample rates 44.1, 48, 96 kHz
Bit depths 16-bit or 24-bit
Typical reduction 10-50% (depends on target)
Engine libsndfile
Max file size 50 MB per file
File retention Auto-deleted after compression

How the conversion works

The compressor reads the WAV file, downsamples the audio to the target sample rate, and reduces the bit depth if selected. Output is a smaller WAV that still opens in any DAW or audio editor.

When to compress WAV

Quality considerations

Downsampling from 96 kHz to 48 kHz is transparent for playback. Reducing bit depth from 24-bit to 16-bit is transparent for playback but loses editing headroom. For CD-quality audio, 44.1 kHz 16-bit is the standard.

Limitations and caveats

Compatibility

Tips for best results

Compression levels explained

Level Size reduction Best for
Light (96 kHz → 48 kHz) ~50% Hi-Res → standard
Medium (48 kHz → 44.1 kHz) ~8% Broadcast → CD
High (24-bit → 16-bit) ~33% Studio → distribution
Maximum (96k/24 → 44.1k/16) ~75% Hi-Res → CD quality

Common problems and fixes

WAV is barely smaller after compression
WAV is uncompressed — significant reduction requires converting to FLAC or MP3. Lower sample rates give modest savings.
Audio quality is audibly worse
Only happens at very aggressive downsample (e.g., 96 kHz → 22 kHz). Stay at 44.1 or 48 kHz for transparent results.
File doesn't open in my DAW
Check the DAW's supported sample rates. Some very old DAWs require 44.1 kHz specifically.

Frequently asked questions

Is WAV compression free? +
Yes — completely free, no signup, no watermark.
How much smaller will my WAV be? +
10-50% depending on the target sample rate and bit depth.
Will quality be preserved? +
Yes for 44.1/48 kHz 16-bit — transparent for playback. Hi-Res to CD is also transparent.
Is WAV compression lossless? +
Not exactly — downsampling and bit-depth reduction are technically lossy, but transparent for playback.
Is my file safe? +
Yes — files are auto-deleted after compression.
Can I compress multiple WAV files at once? +
Currently one file at a time.
What's the maximum file size? +
50 MB per WAV file.

Sources and references

Last reviewed: 2026-10-01