No upload · No software · Runs in your browser
Compress WAV Files
Reduce WAV file size in your browser. WAV is uncompressed PCM, so the practical paths are: re-encode within WAV (modest savings only) or convert to a more efficient format like FLAC (lossless 50% smaller) or MP3 (90%+ smaller). This tool re-encodes within WAV; for dramatic shrinkage, see the format conversion options below.
Drop your WAV file here or click to browse
WAV only · Max 20 MB
How it works
- 1Drop your WAV file (up to 500 MB Pro / 20 MB free).
- 2WAV is lossless — most savings come from converting to FLAC or MP3, not re-encoding within WAV.
- 3For meaningful reduction: try the WAV → FLAC tool (lossless ~50% smaller) or WAV → MP3 (lossy ~90% smaller).
- 4All processing happens in your browser. File never uploads.
Which quality preset to pick
WAV → FLAC (best for lossless)
FLAC is lossless compressed PCM. Same audio data, ~50% file size. Every DAW, every player above 2015, every modern OS. The right choice for archive and library use.
WAV → MP3 320 kbps (transparent for most)
Lossy at 320 kbps but audibly indistinguishable from the WAV for nearly all listeners on typical gear. ~10% the size of the WAV.
WAV → MP3 192 kbps (sweet spot)
The point at which most listeners stop being able to ABX-distinguish from the WAV. ~6% the size of the WAV.
WAV → Opus 96 kbps (smallest with quality)
Modern codec. Roughly 30% better than MP3 at the same bitrate. ~3% the size of the WAV. Best for web delivery, Discord, voice content.
Why WAV files are huge
WAV stores audio as raw uncompressed PCM samples. The math: sample rate × bit depth × channels = bits per second of storage. Standard CD audio is 44,100 Hz × 16 bits × 2 channels = 1,411,200 bits per second = 176 KB per second = ~10 MB per minute. A one-hour stereo WAV at CD quality is about 600 MB. At 24-bit / 96 kHz (common in pro audio), the same hour is 1.9 GB.
This is by design. WAV is the reference format for DAWs, mastering, broadcast, and any workflow where you don't want any compression artifacts to creep in. The cost is file size. For storage, distribution, and sharing, WAV is almost never the right format.
Lossless reduction: WAV → FLAC
FLAC (Free Lossless Audio Codec) compresses WAV using prediction and entropy coding. The decompressed FLAC is bit-for-bit identical to the source WAV — no audible or measurable difference, just a smaller file. Typical compression ratio is 50–60% depending on the source material (busier music compresses worse; sparse acoustic recordings compress better).
For archival storage of a music library, this is the right move. Every track at half the disk space, zero quality loss, broad player support. Use the [WAV to FLAC](/wav-to-flac) tool. The conversion is reversible — you can go back to WAV anytime via [FLAC to WAV](/flac-to-wav).
Dramatic reduction: WAV → lossy
If file size really matters (web delivery, mobile listening, sharing), converting WAV to a lossy format gets you 90%+ reduction with surprisingly little audible impact at the right bitrate. MP3 320 kbps is roughly 10% of the original WAV size and audibly transparent for most material on most playback gear. AAC at the same bitrate is slightly more efficient. Opus at 96 kbps is about 3% of the original WAV size and excellent for voice and web delivery.
The tradeoff is irreversibility — once you've gone WAV → lossy, you can't recover the original audio data. Always keep the WAV (or a FLAC archive of it) somewhere as the master.
When re-encoding WAV within WAV makes sense
Almost never. WAV is uncompressed, so 're-encoding' just rewrites the same PCM samples (possibly at a lower sample rate or bit depth, which is technically lossy and not what most people want). The narrow case: you have a 96 kHz / 24-bit WAV and need to deliver 44.1 kHz / 16-bit (CD-spec). That conversion does reduce file size, but the right tools for it are dithering-aware audio editors like Audacity or a DAW, not a generic compressor.
Convert instead of compressing?
Switch formats for dramatic file-size reduction or different compatibility.
Frequently Asked Questions
Can WAV files be compressed?
Yes — but the meaningful compression happens by converting WAV to a different format. WAV is uncompressed PCM by design, so 'compressing within WAV' only saves space if you reduce the sample rate or bit depth (which is technically lossy). To preserve every audio sample but shrink the file, convert to FLAC (~50% smaller, lossless). For dramatic reduction, convert to MP3 or Opus (lossy, 90%+ smaller).
What's the smallest you can make a WAV file?
Within WAV format, you can downsample (44.1 kHz to 22 kHz halves size) and reduce bit depth (16-bit to 8-bit halves again). But these are lossy operations and you might as well switch to MP3 at that point for better quality at similar size. For lossless reduction, convert to FLAC (~50% of WAV size). For maximum reduction, convert to Opus at 96 kbps (~3% of WAV size).
Will compressing WAV make my audio worse?
Re-encoding WAV → WAV at the same sample rate and bit depth doesn't change audio quality. Converting WAV → FLAC is lossless, so quality is identical. Converting WAV → MP3, AAC, OGG, or Opus is lossy but at high bitrates (192+ kbps) most listeners can't ABX-distinguish the result from the source on typical playback gear. At low bitrates (64 kbps for music), audible artifacts appear.
Why does WAV → FLAC give different file sizes for different songs?
FLAC's compression efficiency depends on the audio content. Sparse audio (solo piano, voice, ambient) compresses better — 30–40% of WAV is common. Dense audio (loud rock, electronic music) compresses worse — 55–65% of WAV. The compressor can't predict 'random' audio data well, and busy mixes look more random to the encoder than sparse ones do. The savings are still meaningful across a full library.
Should I convert WAV to MP3 or to FLAC?
FLAC if you want to preserve the original audio exactly and are okay with ~50% file size. MP3 if you want a much smaller file and don't mind some quality loss (which most people can't hear at 192+ kbps). For an archive: FLAC. For sharing or streaming: MP3 or AAC. For web/voice/Discord: Opus.
Is this WAV compressor free?
Yes. Free tier compresses the first 10 seconds as a preview. Pro ($9/month) removes the preview limit and supports files up to 500 MB. Compression runs entirely in your browser — there are no server costs, and your file stays local.
Read more
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FLAC vs WAV for Music Production: The Practical Answer
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Lossless vs Lossy Audio: The Complete Guide
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