0 WINS / 0 LOSSES

Best WebP Compression Tool

Up to 0% smaller than LZMA. 0 wins, 0 losses across real-world WebP files. Lossless, verified, free to try.

Compress WebP Free Full Benchmarks
0%
Best Saving vs LZMA
0%
Median Saving
0W / 0T
Win / Tie Record
0
Losses

How PZIP Compresses WebP

WebP uses VP8 (lossy) or VP8L (lossless) — both highly optimized codecs by Google. PZIP's passthrough mode ensures WebP files are never enlarged. Marginal wins come from container-level metadata extraction and RIFF header optimization.

Codec: Passthrough
Lossless
Byte-exact round-trip verified on every file
Never-Worse
Falls back to LZMA if it can't beat it
Automatic
Type detection + codec selection is automatic

History of WebP

Est. 2010Created by Google

WebP was developed by Google in 2010 using VP8 (lossy) and VP8L (lossless) codecs. It offers superior compression to JPEG and PNG while supporting both lossy and lossless modes, plus animation and alpha transparency. Adopted by Chrome, Firefox, and Safari.

Compression Timeline

2010

Google announces WebP format

2018

Safari adds WebP support — universal browser coverage

2020

WebP overtakes PNG for web usage

2026

PZIP passthrough guarantees never-worse on WebP

Real-World Benchmark Results

Every file tested with LZMA-9 (maximum compression) as baseline. Round-trip correctness verified on every file.

FileSizePZIP vs LZMAResultDownload
aucmd-after.webp67.0 KBTIEERROR Source
awa-koenji-2023-3.webp113.5 KBTIEERROR Source
band-sounds.webp365.7 KBTIEERROR Source
casino1.webp60.4 KBTIEERROR Source
casino1@2x.webp157.4 KBTIEERROR Source
color1.webp20.0 KBTIEERROR Source
config-create.webp26.0 KBTIEERROR Source
copilot-authenticated.webp79.8 KBTIEERROR Source
copilot-cmp4.webp35.3 KBTIEERROR Source
deprecated.webp105.9 KBTIEERROR Source
extended-lossy-uncompressed-alpha.webp92.8 KBTIEERROR Source
fade_nc-false.webp23.9 KBTIEERROR Source
flatpak.webp37.8 KBTIEERROR Source
font-big.webp21.5 KBTIEERROR Source
gallery5.webp80.8 KBTIEERROR Source
google-gallery-2.webp59.2 KBTIEERROR Source
google-gallery-4.webp172.8 KBTIEERROR Source
gstatic-1.webp29.6 KBTIEERROR Source
happo-en1.webp399.1 KBTIEERROR Source
install-ls4.webp82.7 KBTIEERROR Source
iyashinosatonenba4.webp248.7 KBTIEERROR Source
kachikachi.webp130.2 KBTIEERROR Source
lazy-init.webp56.8 KBTIEERROR Source
lossless_checker_3_512x512_sq16.webp224.1 KBTIEERROR Source
lossless_gradient_1_300x200.webp101.0 KBTIEERROR Source
lossless_solid_red_400x300.webp141.0 KBTIEERROR Source
lossy_photo_2_640x480_q55.webp23.2 KBTIEERROR Source
lspkind-before.webp21.0 KBTIEERROR Source
lualine-options-before.webp40.5 KBTIEERROR Source
mason-tsls.webp52.4 KBTIEERROR Source
mm-bon-odori-thumbnail.webp190.3 KBTIEERROR Source
nihonbashi-parade-thumbnail.webp32.0 KBTIEERROR Source
nvim-hlslens2.webp28.3 KBTIEERROR Source
picsum-100.webp23.5 KBTIEERROR Source
picsum-101.webp31.4 KBTIEERROR Source
picsum-103.webp73.2 KBTIEERROR Source
picsum-104.webp21.1 KBTIEERROR Source
picsum-106.webp50.1 KBTIEERROR Source
picsum-109.webp28.0 KBTIEERROR Source
picsum-110.webp83.9 KBTIEERROR Source
picsum-112.webp40.5 KBTIEERROR Source
picsum-115.webp77.3 KBTIEERROR Source
picsum-116.webp52.0 KBTIEERROR Source
picsum-118.webp51.9 KBTIEERROR Source
picsum-120.webp55.2 KBTIEERROR Source
picsum-122.webp27.8 KBTIEERROR Source
picsum-123.webp22.4 KBTIEERROR Source
picsum-124.webp32.6 KBTIEERROR Source
picsum_1200x800_001.webp95.9 KBTIEERROR Source
picsum_1200x800_002.webp113.8 KBTIEERROR Source
picsum_1200x800_003.webp70.9 KBTIEERROR Source
picsum_1200x800_004.webp45.2 KBTIEERROR Source
picsum_1200x800_005.webp53.0 KBTIEERROR Source
picsum_1200x800_006.webp26.2 KBTIEERROR Source
picsum_1200x800_007.webp85.6 KBTIEERROR Source
picsum_1200x800_010.webp104.9 KBTIEERROR Source
picsum_1200x800_012.webp139.6 KBTIEERROR Source
picsum_1200x800_013.webp181.4 KBTIEERROR Source
picsum_1200x800_014.webp37.8 KBTIEERROR Source
picsum_1200x800_015.webp95.2 KBTIEERROR Source
picsum_1200x800_016.webp155.7 KBTIEERROR Source
picsum_1200x800_017.webp114.8 KBTIEERROR Source
picsum_1200x800_018.webp47.5 KBTIEERROR Source
picsum_1200x800_019.webp69.8 KBTIEERROR Source
picsum_1200x800_020.webp37.9 KBTIEERROR Source
picsum_1200x800_022.webp250.8 KBTIEERROR Source
picsum_1200x800_023.webp71.3 KBTIEERROR Source
picsum_1200x800_024.webp109.7 KBTIEERROR Source
picsum_1200x800_025.webp113.4 KBTIEERROR Source
picsum_1200x800_026.webp39.5 KBTIEERROR Source
picsum_1200x800_028.webp25.7 KBTIEERROR Source
picsum_1200x800_029.webp76.4 KBTIEERROR Source
picsum_1200x800_030.webp77.5 KBTIEERROR Source
picsum_1200x800_031.webp123.8 KBTIEERROR Source
picsum_1200x800_032.webp55.7 KBTIEERROR Source
picsum_1200x800_033.webp104.3 KBTIEERROR Source
picsum_1200x800_034.webp73.3 KBTIEERROR Source
picsum_1200x800_036.webp30.6 KBTIEERROR Source
picsum_1200x800_037.webp127.9 KBTIEERROR Source
picsum_1200x800_040.webp100.2 KBTIEERROR Source
picsum_1920x1080_041.webp70.0 KBTIEERROR Source
picsum_1920x1080_042.webp43.1 KBTIEERROR Source
picsum_1920x1080_044.webp39.2 KBTIEERROR Source
picsum_1920x1080_045.webp384.3 KBTIEERROR Source
picsum_1920x1080_046.webp416.4 KBTIEERROR Source
picsum_1920x1080_047.webp98.3 KBTIEERROR Source
picsum_1920x1080_048.webp229.2 KBTIEERROR Source
picsum_1920x1080_049.webp43.5 KBTIEERROR Source
picsum_1920x1080_050.webp101.0 KBTIEERROR Source
picsum_1920x1080_051.webp114.2 KBTIEERROR Source
picsum_1920x1080_052.webp23.0 KBTIEERROR Source
picsum_1920x1080_053.webp239.6 KBTIEERROR Source
picsum_1920x1080_054.webp64.7 KBTIEERROR Source
picsum_1920x1080_055.webp274.4 KBTIEERROR Source
picsum_1920x1080_056.webp99.7 KBTIEERROR Source
picsum_1920x1080_057.webp147.4 KBTIEERROR Source
picsum_1920x1080_058.webp271.2 KBTIEERROR Source
picsum_1920x1080_059.webp49.8 KBTIEERROR Source
picsum_1920x1080_060.webp78.1 KBTIEERROR Source
picsum_1920x1080_061.webp247.2 KBTIEERROR Source
picsum_1920x1080_062.webp99.8 KBTIEERROR Source
picsum_1920x1080_063.webp23.2 KBTIEERROR Source
picsum_1920x1080_064.webp91.3 KBTIEERROR Source
picsum_1920x1080_065.webp62.3 KBTIEERROR Source
picsum_1920x1080_066.webp74.1 KBTIEERROR Source
picsum_1920x1080_067.webp103.8 KBTIEERROR Source
picsum_1920x1080_068.webp98.9 KBTIEERROR Source
picsum_1920x1080_069.webp173.8 KBTIEERROR Source
picsum_1920x1080_070.webp62.2 KBTIEERROR Source
picsum_1920x1080_071.webp134.9 KBTIEERROR Source
picsum_1920x1080_072.webp271.0 KBTIEERROR Source
picsum_1920x1080_073.webp34.4 KBTIEERROR Source
picsum_1920x1080_074.webp66.0 KBTIEERROR Source
picsum_1920x1080_075.webp211.2 KBTIEERROR Source
picsum_1920x1080_077.webp163.8 KBTIEERROR Source
picsum_1920x1080_078.webp107.5 KBTIEERROR Source
picsum_1920x1080_079.webp302.3 KBTIEERROR Source
picsum_1920x1080_080.webp138.6 KBTIEERROR Source
picsum_1920x1080_081.webp101.4 KBTIEERROR Source
picsum_1920x1080_082.webp120.5 KBTIEERROR Source
picsum_1920x1080_083.webp119.9 KBTIEERROR Source
picsum_1920x1080_084.webp146.8 KBTIEERROR Source
picsum_1920x1080_085.webp245.9 KBTIEERROR Source
picsum_1920x1080_086.webp89.2 KBTIEERROR Source
picsum_1920x1080_087.webp201.4 KBTIEERROR Source
picsum_1920x1080_089.webp319.9 KBTIEERROR Source
picsum_webp_1100.webp120.2 KBTIEERROR Source
picsum_webp_1101.webp111.8 KBTIEERROR Source
picsum_webp_1102.webp29.8 KBTIEERROR Source
picsum_webp_1103.webp59.4 KBTIEERROR Source
picsum_webp_1104.webp131.4 KBTIEERROR Source
restav@2x.webp129.0 KBTIEERROR Source
sqlite-nvim-ok.webp63.4 KBTIEERROR Source
telescope-che-ok.webp44.0 KBTIEERROR Source
unsplash-141460924522.webp148.7 KBTIEERROR Source
unsplash-143179406223.webp159.0 KBTIEERROR Source
unsplash-144197423153.webp168.6 KBTIEERROR Source
unsplash-144775287521.webp202.2 KBTIEERROR Source
unsplash-146858126442.webp35.3 KBTIEERROR Source
unsplash-146947496802.webp60.9 KBTIEERROR Source
unsplash-147221410345.webp164.2 KBTIEERROR Source
unsplash-147592415673.webp50.0 KBTIEERROR Source
unsplash-150178588804.webp152.7 KBTIEERROR Source
unsplash-150185414080.webp119.8 KBTIEERROR Source
unsplash-150456796154.webp88.2 KBTIEERROR Source
unsplash-150752542803.webp71.8 KBTIEERROR Source
unsplash-151968139378.webp115.5 KBTIEERROR Source
unsplash-152371299961.webp223.5 KBTIEERROR Source
wezterm-font.webp66.6 KBTIEERROR Source
yomiuri-land-thunbmail.webp87.8 KBTIEERROR Source

Frequently Asked Questions

Can PZIP compress WebP files?

+

WebP is already highly optimized. PZIP provides marginal gains from container metadata and guarantees never-worse output.

PZIP vs Other Compressors for WebP

FeaturePZIPLZMA / xzgzipzstd
Type-AwareYesNoNoNo
LosslessYesYesYesYes
Never-Worse GuaranteeYesN/AN/AN/A
Best WebP Saving0%BaselineWorse~Similar
Round-Trip VerifiedEvery fileManualManualManual

Try PZIP on Your WebP Files

Upload any WebP file up to 30 MB. Free during beta — no signup required. See how much smaller PZIP makes it.

Compress WebP Now All File Types
Baseline:     LZMA-9 (maximum compression)
Competitors:  gzip-9, bz2-9, brotli-11, zstd-19, PPMd 2-24
Verification: Byte-exact round-trip on every file
Guarantee:    Never-worse (PZIP <= LZMA, always)
Test files:   150 real-world WebP files
Updated:      2026-02-15