Select one or more integer PCM WAV recordings from your device. Check each file's bit depth, sample rate, and channels before processing. Unsupported encodings are rejected, and your audio stays on your device.
2
Set audio parameters
Choose a lower bit depth or sample rate to reduce WAV file size. The default is 16 bit with Source sample rate. Source keeps each file’s rate; Keep original retains its bit depth. Channels stay unchanged. Lower settings can reduce sound quality.
3
Compare and download
Click Compress WAV, compare the original and output sizes, and listen to each result. Download saves a single WAV directly; Download ZIP collects successful results from a list of multiple files. Save your results before leaving the page.
Reduce WAV file size for sharing
Use this WAV file compressor to make smaller recording copies while keeping the WAV format and source channels.
01
Control bit depth and sample rate
PCM WAV size depends on bit depth, sample rate, channels, and duration. This WAV audio compressor reduces audio data by lowering precision or sample rate, with a quality tradeoff. Compare actual file sizes rather than relying on a fixed reduction percentage.
Choose 24, 16, or 8 bit, or keep the source precision.
Keep the original sample rate or select a lower rate.
Compare actual sizes rather than a promised reduction.
Compression example
PCM data example: same duration and channels
24 bit16 bit
48,000 Hz16,000 Hz
02
Share smaller recording copies
Make a smaller copy of a high bit depth recording for email attachments or sharing. The WAV file size reducer creates a separate output, so your original stays available for editing. Higher settings cannot recover detail missing from the source.
Default to 16 bit while retaining the source rate.
Preserve stereo order and defined multichannel layouts.
Download a separate file without replacing the source.
Compression example
Separate review copy
Source
24 bit · 48,000 Hz
Result
16 bit · 48,000 Hz
03
Balance size and speech clarity
A lower sample rate can reduce audio file size for WAV voice recordings, but it removes higher frequencies. Compare the sound before sharing a speech copy. An 8-bit result can also have noticeable quantization noise.
Choose Source, 48k, 44.1k or 22k (22,050 Hz).
Listen to the encoded result, not a simulated preview.
Keep source channels; no automatic mono conversion.
Compression example
Voice copy: compare the bandwidth
Source
48,000 Hz
Result
16,000 Hz
04
Batch compress WAV files
Apply the same selected settings to several recordings and process them one file at a time. Source uses each file's own parameters. Files that already match the settings are skipped, and successful results stay available if another file fails.
Inspect source and result parameters in each row.
Retain the last successful result when settings change.
Download a ZIP containing only available results.
Compression example
Each file keeps its own source rate
01 · 24 bit · 48,000 Hz
16 bit · 48,000 Hz
02 · 24 bit · 44,100 Hz
16 bit · 44,100 Hz
03 · 16 bit · 44,100 Hz
Unchanged · skipped
WAV compressor questions
Which WAV files can I use?
This tool accepts integer PCM WAV at 8, 16, 24, or 32 bit with a supported channel layout. It checks the file header before processing. Float WAV, compressed WAV, RF64, and ambiguous extended headers are not supported. For WAV-to-MP3 compression, use the general Audio Compressor; this page keeps WAV output.
How does this online WAV compressor reduce file size?
PCM audio uses fewer bytes when you lower its bit depth or sample rate. The output stays WAV and keeps the source channels. This tool changes audio settings rather than creating a lossless archive. Actual savings depend on source parameters and file headers; a smaller file is not guaranteed.
Can I compress WAV files without losing quality?
Lowering bit depth or sample rate changes the audio data, so this is not lossless compression. It can reduce precision or remove higher frequencies, even if the difference is not obvious when you listen. Keep the original for editing or archiving, and preview the processed copy before using it.
Why did the file stay the same size or get larger?
If effective parameters match the source, no new result is created. Higher settings can increase size without restoring detail, and container headers also take space. Changed settings do not alter an older result until processing succeeds.
Which bit depth should I choose?
The default is 16 bit. Choose 24 bit for a higher precision copy, or Keep original to retain the source depth. At 8 bit, quantization noise can be noticeable. Raising the depth does not recover detail that was lost in the source.
How does sample rate affect the result?
Source preserves each file’s sample rate. Choose 48k (48,000 Hz), 44.1k (44,100 Hz) or 22k (22,050 Hz) to set a target rate. Lower rates reduce the available frequency range, so check the result by listening.
Can I process several files and retry failures?
Add up to 10 files on desktop or 5 on mobile, within combined input budgets of 200 MB and 100 MB. Failed items can be retried with their saved settings. Successful results remain downloadable.
Are my files uploaded and are tags preserved?
This free WAV compressor processes audio locally in your browser, with no account required. Your files are not uploaded for processing, though the FFmpeg engine downloads its code when needed. New WAV files do not promise to preserve INFO, BWF, cue, chapters, or other tags. Originals stay unchanged; download results before leaving the page.
Ready to compress WAV files online?
Choose bit depth and sample rate settings for your recording, compare the result, and download your WAV audio for free.