0 WINS / 0 LOSSES

Best JPEG Compression Tool

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

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

How PZIP Compresses JPEG

JPEG files are already entropy-coded, but they contain uncompressed headers, EXIF metadata, ICC color profiles, and JFIF markers. PZIP separates these structured components and compresses them independently. The compressed image stream is passed through untouched — never-worse guaranteed.

Codec: Multi-codec gateway
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 JPEG

Est. 1992Created by Joint Photographic Experts Group

JPEG was standardized in 1992 by the Joint Photographic Experts Group using DCT-based lossy compression. It became the dominant photograph format, used on 82% of websites. JPEG's internal Huffman coding makes further lossless compression extremely challenging — but not impossible.

Compression Timeline

1992

JPEG standard published (ISO 10918)

2000

JPEG 2000 — wavelet-based alternative (low adoption)

2014

MozJPEG — improved JPEG encoder

2026

PZIP header extraction squeezes extra bytes from JPEG

Real-World Benchmark Results

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

FileSizePZIP vs LZMAResultDownload
1527148378.jpg68.6 KBTIEERROR Source
2.jpg24.0 KBTIEERROR Source
2025_PPS-Deva_01.jpg340.1 KBTIEERROR Source
2025_PPS-Deva_02.jpg590.7 KBTIEERROR Source
2025_PPS-Heb_01.jpg308.5 KBTIEERROR Source
2025_PPS-LGC_02.jpg604.7 KBTIEERROR Source
2025_PPS-Thai_01.jpg330.3 KBTIEERROR Source
26_overlay.jpg288.0 KBTIEERROR Source
28_environmental.jpg287.8 KBTIEERROR Source
4.jpg36.7 KBTIEERROR Source
42dot.jpg39.8 KBTIEERROR Source
BadMod.jpg47.2 KBTIEERROR Source
Ga_Maamli_1.jpg659.4 KBTIEERROR Source
Ga_Maamli_11.jpg893.0 KBTIEERROR Source
Ga_Maamli_4.jpg820.6 KBTIEERROR Source
Image2.jpg865.0 KBTIEERROR Source
Image3.jpg775.5 KBTIEERROR Source
Parkinsans_Specimen_01.jpg449.2 KBTIEERROR Source
Parkinsans_Specimen_02.jpg691.3 KBTIEERROR Source
Parkinsans_Specimen_04.jpg313.9 KBTIEERROR Source
SpecialGothic_GF2.jpg96.9 KBTIEERROR Source
SpecialGothic_GF4.jpg490.6 KBTIEERROR Source
SpecialGothic_GF5.jpg198.9 KBTIEERROR Source
SpecialGothic_GF7.jpg332.5 KBTIEERROR Source
WebServer_localhost.jpg278.6 KBTIEERROR Source
afacad_03_artwork.jpg367.7 KBTIEERROR Source
andreaslarsen.jpg80.1 KBTIEERROR Source
big_image.jpg5.7 MBTIEERROR Source
block6@2x.jpg617.5 KBTIEERROR Source
boston_college_sports_logo.jpg61.5 KBTIEERROR Source
casablanca.jpg43.4 KBTIEERROR Source
casino1.jpg314.1 KBTIEERROR Source
casino1@2x.jpg940.9 KBTIEERROR Source
casino2.jpg303.0 KBTIEERROR Source
casino2@2x.jpg938.3 KBTIEERROR Source
cat_细节.jpg22.5 KBTIEERROR Source
cat_轮廓.jpg32.5 KBTIEERROR Source
chave-de-fenda-r.jpg27.7 KBTIEERROR Source
chave-de-fenda.jpg39.7 KBTIEERROR Source
chest_xray.jpg53.6 KBTIEERROR Source
drake.jpeg67.9 KBTIEERROR Source
dunes1.jpg150.2 KBTIEERROR Source
emmaus.jpg26.0 KBTIEERROR Source
exile_1.jpg256.4 KBTIEERROR Source
exile_5.jpg666.8 KBTIEERROR Source
fitting_the_line_1.jpg173.1 KBTIEERROR Source
fitting_the_line_2.jpg167.8 KBTIEERROR Source
fitting_the_line_6.jpg142.0 KBTIEERROR Source
flagler.jpg82.4 KBTIEERROR Source
hack.jpg50.7 KBTIEERROR Source
hotels.jpg188.4 KBTIEERROR Source
hotels3.jpg240.8 KBTIEERROR Source
hotels3@2x.jpg749.0 KBTIEERROR Source
hotels@2x.jpg571.4 KBTIEERROR Source
hs-2004-27-a-large-web.jpg33.7 KBTIEERROR Source
iansui_cover.jpg218.7 KBTIEERROR Source
image00.jpeg166.7 KBTIEERROR Source
image00.jpg339.8 KBTIEERROR Source
image01.jpeg153.9 KBTIEERROR Source
image04.jpg115.6 KBTIEERROR Source
image05.jpg416.9 KBTIEERROR Source
image07.jpeg188.4 KBTIEERROR Source
image09.jpg93.7 KBTIEERROR Source
image11.jpg85.7 KBTIEERROR Source
image2.jpg150.7 KBTIEERROR Source
image4.jpg224.2 KBTIEERROR Source
image_splashscreen_12.jpg58.1 KBTIEERROR Source
image_splashscreen_13.jpg65.2 KBTIEERROR Source
image_splashscreen_14.jpg86.5 KBTIEERROR Source
image_splashscreen_16.jpg62.0 KBTIEERROR Source
image_splashscreen_17.jpg72.4 KBTIEERROR Source
image_splashscreen_4.jpg75.9 KBTIEERROR Source
image_splashscreen_5.jpg81.6 KBTIEERROR Source
image_splashscreen_6.jpg57.3 KBTIEERROR Source
image_splashscreen_7.jpg65.1 KBTIEERROR Source
image_splashscreen_8.jpg66.5 KBTIEERROR Source
justification_5.jpg66.7 KBTIEERROR Source
justification_6.jpg145.6 KBTIEERROR Source
justification_7.jpg189.4 KBTIEERROR Source
justification_8.jpg120.6 KBTIEERROR Source
lizard.jpg31.0 KBTIEERROR Source
logo.jpeg243.0 KBTIEERROR Source
mother_daughter.jpg21.8 KBTIEERROR Source
nature_pattern_5_600x400.jpg36.6 KBTIEERROR Source
ncat_logo.jpg152.9 KBTIEERROR Source
neuron_diagram.jpg47.5 KBTIEERROR Source
noise_random_0_400x300.jpg66.4 KBTIEERROR Source
noise_random_1_1024x768.jpg439.8 KBTIEERROR Source
noise_random_4_400x300.jpg76.8 KBTIEERROR Source
noise_random_7_400x300.jpg88.0 KBTIEERROR Source
noise_random_8_1024x768.jpg599.8 KBTIEERROR Source
noise_random_9_400x300.jpg99.3 KBTIEERROR Source
pagerank.jpg44.7 KBTIEERROR Source
picsum_1200x800_001.jpg165.9 KBTIEERROR Source
picsum_1200x800_002.jpg133.4 KBTIEERROR Source
picsum_1200x800_003.jpg126.3 KBTIEERROR Source
picsum_1200x800_004.jpg90.0 KBTIEERROR Source
picsum_1200x800_005.jpg63.4 KBTIEERROR Source
picsum_1200x800_006.jpg97.5 KBTIEERROR Source
picsum_1200x800_007.jpg70.4 KBTIEERROR Source
picsum_1200x800_008.jpg130.7 KBTIEERROR Source
picsum_1200x800_009.jpg40.4 KBTIEERROR Source
picsum_1200x800_010.jpg127.9 KBTIEERROR Source
picsum_1200x800_011.jpg82.7 KBTIEERROR Source
picsum_1200x800_012.jpg67.8 KBTIEERROR Source
picsum_1200x800_013.jpg98.1 KBTIEERROR Source
picsum_1200x800_014.jpg200.7 KBTIEERROR Source
picsum_1200x800_015.jpg37.8 KBTIEERROR Source
picsum_1200x800_016.jpg64.4 KBTIEERROR Source
picsum_1200x800_017.jpg198.6 KBTIEERROR Source
picsum_1200x800_018.jpg103.7 KBTIEERROR Source
picsum_1200x800_020.jpg138.7 KBTIEERROR Source
picsum_1200x800_021.jpg166.7 KBTIEERROR Source
picsum_1200x800_022.jpg48.5 KBTIEERROR Source
picsum_1200x800_023.jpg173.3 KBTIEERROR Source
picsum_1200x800_024.jpg186.0 KBTIEERROR Source
picsum_1200x800_025.jpg133.7 KBTIEERROR Source
picsum_fill_2000.jpg81.4 KBTIEERROR Source
picsum_fill_2001.jpg45.8 KBTIEERROR Source
picsum_fill_2002.jpg166.0 KBTIEERROR Source
picsum_fill_2003.jpg275.2 KBTIEERROR Source
picsum_fill_2004.jpg257.3 KBTIEERROR Source
picsum_fill_2005.jpg178.5 KBTIEERROR Source
promenade.jpg36.9 KBTIEERROR Source
ram.jpeg97.8 KBTIEERROR Source
restav2.jpg217.2 KBTIEERROR Source
robot1TestImg36.jpg71.6 KBTIEERROR Source
robot1TestImg39.jpg49.6 KBTIEERROR Source
robot1TestImg5.jpg77.6 KBTIEERROR Source
robot2TestImg16.jpg68.9 KBTIEERROR Source
robot2TestImg19.jpg66.3 KBTIEERROR Source
robot2TestImg42.jpg50.0 KBTIEERROR Source
screenshot_ui_0_1920x1080.jpg63.1 KBTIEERROR Source
screenshot_ui_10_1024x768.jpg31.0 KBTIEERROR Source
screenshot_ui_13_1920x1080.jpg63.2 KBTIEERROR Source
screenshot_ui_14_1920x1080.jpg63.2 KBTIEERROR Source
screenshot_ui_2_1024x768.jpg30.9 KBTIEERROR Source
screenshot_ui_5_1024x768.jpg30.8 KBTIEERROR Source
screenshot_ui_7_800x600.jpg23.3 KBTIEERROR Source
screenshot_ui_8_800x600.jpg23.4 KBTIEERROR Source
screenshot_ui_9_1920x1080.jpg63.1 KBTIEERROR Source
scs_logo.jpg28.5 KBTIEERROR Source
shapes_ellipse_5_800x800.jpg32.7 KBTIEERROR Source
shapes_line_7_600x600.jpg31.4 KBTIEERROR Source
shapes_rect_3_800x800.jpg26.7 KBTIEERROR Source
showing.jpg493.4 KBTIEERROR Source
spectrum_1_1000x300.jpg27.9 KBTIEERROR Source
stacksans02.jpg503.8 KBTIEERROR Source
stacksans04.jpg385.0 KBTIEERROR Source
star_field.jpg510.3 KBTIEERROR Source
startupHD.jpg90.6 KBTIEERROR Source
stripes_21px_3_800x600.jpg72.7 KBTIEERROR Source
stripes_30px_2_600x400.jpg36.8 KBTIEERROR Source
surf.jpg65.0 KBTIEERROR Source
target_kf.jpg68.2 KBTIEERROR Source
text_render_1_640x480.jpg72.6 KBTIEERROR Source
text_render_2_1024x768.jpg79.8 KBTIEERROR Source
text_render_3_640x480.jpg74.1 KBTIEERROR Source
text_render_4_800x600.jpg76.0 KBTIEERROR Source
text_render_5_800x600.jpg76.3 KBTIEERROR Source
text_render_7_800x600.jpg75.0 KBTIEERROR Source
the_tight_not_touching_style_1.jpg58.9 KBTIEERROR Source
the_tight_not_touching_style_3.jpg93.6 KBTIEERROR Source
tow-truck-1.jpg467.3 KBTIEERROR Source
tow-truck-2.jpg194.2 KBTIEERROR Source
type_selection_for_ar_vr_2.jpg136.2 KBTIEERROR Source
vertically-halved-lena.jpg27.9 KBTIEERROR Source
vt_logo2.jpg154.5 KBTIEERROR Source
wikimedia_altja.jpg4.8 MBTIEERROR Source
wikimedia_ant.jpg740.8 KBTIEERROR Source
wikimedia_blue_marble.jpg5.4 MBTIEERROR Source
wikimedia_cat03.jpg273.0 KBTIEERROR Source
wikimedia_cat03_large.jpg210.2 KBTIEERROR Source
wikimedia_cat_august.jpg4.4 MBTIEERROR Source
wikimedia_cat_nov_large.jpg478.9 KBTIEERROR Source
wikimedia_cat_november.jpg2.7 MBTIEERROR Source
wikimedia_cat_poster.jpg10.9 MBTIEERROR Source
wikimedia_cat_ricestraw.jpg5.1 MBTIEERROR Source
wikimedia_chocolate.jpg482.8 KBTIEERROR Source
wikimedia_cute_dog.jpg4.9 MBTIEERROR Source
wikimedia_dahlia.jpg499.9 KBTIEERROR Source
wikimedia_earth_apollo17.jpg6.2 MBTIEERROR Source
wikimedia_empirestate.jpg1.1 MBTIEERROR Source
wikimedia_food_display.jpg3.0 MBTIEERROR Source
wikimedia_fruit_stall.jpg2.8 MBTIEERROR Source
wikimedia_fruits.jpg3.0 MBTIEERROR Source
wikimedia_golden_gate3.jpg207.7 KBTIEERROR Source
wikimedia_goldengate.jpg3.0 MBTIEERROR Source
wikimedia_hurricane.jpg696.0 KBTIEERROR Source
wikimedia_iss_cupola.jpg1.2 MBTIEERROR Source
wikimedia_jpeg_example_flower.jpg35.4 KBTIEERROR Source
wikimedia_kittyply.jpg985.9 KBTIEERROR Source
wikimedia_la_skyline.jpg1.4 MBTIEERROR Source
wikimedia_monalisa_800.jpg326.5 KBTIEERROR Source
wikimedia_nine_dogs.jpg2.2 MBTIEERROR Source
wikimedia_orange_tabby.jpg3.4 MBTIEERROR Source
wikimedia_pears.jpg132.5 KBTIEERROR Source
wikimedia_starry_night2.jpg1.8 MBTIEERROR Source
wikimedia_sunrise_sea.jpg39.5 KBTIEERROR Source
wikimedia_tsunami_hokusai.jpg2.2 MBTIEERROR Source
ycck-1111.jpg35.3 KBTIEERROR Source
ycck-2111.jpg20.6 KBTIEERROR Source

Frequently Asked Questions

Can you really compress a JPEG file further?

+

Yes, slightly. JPEG files contain uncompressed metadata (EXIF, ICC profiles, thumbnails) that generic compressors miss. PZIP extracts and compresses these separately. Savings are small (0.4-0.8%) but real.

Does PZIP reduce JPEG image quality?

+

Never. PZIP is 100% lossless. Every pixel is preserved byte-exactly. We compress the container, not the image data.

PZIP vs Other Compressors for JPEG

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

Try PZIP on Your JPEG Files

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

Compress JPEG 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:   202 real-world JPEG files
Updated:      2026-02-15