Image Credits and Test Data

Every photograph used in Image Load Lab tests comes from Wikimedia Commons and was published there under the CC0 public-domain dedication or as a public-domain work. No credit is legally required for these files, but we list the author and source of each one so the corpus can be checked and downloaded again. The corpus was downloaded on September 29, 2026.

Images on this site that are not in this table are either screenshots of real software (this website, the browser tools, Chrome) or charts and test patterns generated by our scripts. They are labelled in their captions. We do not use stock photos.

The 20-photo test corpus

ID used in guides	Title on Wikimedia Commons	Author	Licence	Content type	Original size (px)
`landscape`	Lake Mountain Landscape	Bonnie Moreland	CC0	landscape	5,184 × 3,456
`forest`	Berk Birch (titel op object) Verschillende soorten bomen (serietitel) Delineations of the General Character, Ramifications and Foliage of Forest Trees (serietitel), RP-P-1989-97	Rijksmuseum	CC0	scan of a drawing	6,924 × 5,054
`city-night`	Price Building illuminated at night in Quebec City	Wilfredor	CC0	night / low light	4,524 × 2,940
`architecture`	Cube berlin	Shisma	CC0	architecture	3,024 × 4,032
`food`	Piece of chocolate cake on a white plate decorated with chocolate sauce	Daria Yakovleva (minor edits by Subsidiary account)	CC0	food	5,536 × 3,766
`flower`	Macro flower wallpaper	Free Nature Stock	CC0	macro	5,472 × 3,648
`animal-fur`	Secondhand vintage fur coats and shawls in Prague shop	MAKY.OREL	CC0	animal / texture	2,560 × 1,920
`bird`	Speculum Feather from Pacific Black Duck	Hallo3800	CC0	animal / texture	4,608 × 3,456
`beach-sky`	Sunset sea and sky (Unsplash)	James Harris jharris	CC0	sky and smooth gradients	5,613 × 3,742
`street-sign`	Street sign in San Ramón, Costa Rica	Bernard Gagnon	CC0	text in a photo	4,518 × 3,012
`market`	Sang Farsh Fruit and Vegetable Market	Behnam9395	CC0	busy colour scene	4,032 × 3,024
`interior`	Living room of a typical rural house in northeast Brazil	Wilfredor	CC0	interior	5,619 × 3,834
`car`	Google Street View camera car in Barcelona	Jove	CC0	product / object	4,495 × 2,712
`snow`	Winter (The Vicarage Garden under Snow) – Van Gogh	Vincent van Gogh	Public domain	photo of a painting	4,052 × 3,215
`sunset`	Sunset Key and Sailboats, Florida, 2025	Julian Lupyan	CC0	sky and smooth gradients	6,964 × 3,626
`texture-rock`	Grey speckled patchy granite rock seamless stone surface texture	Sisters.seamless	CC0	texture	2,539 × 2,539
`waterfall`	Cascade de Glandieu, octobre 2019 (1)	Benoît Prieur	CC0	fine detail	3,024 × 4,032
`coffee`	Cup of coffee in Café Butter – Prenzlauer Berg, Berlin	Edward	CC0	product / object	4,160 × 4,160
`bicycle`	Bike on a snowy street in Quebec City at night	Wilfredor	CC0	fine detail	7,728 × 5,162
`desert`	Sossusvlei Dunes Namib	Vicartb	CC0	sky and smooth gradients	5,184 × 3,888

The original files keep their camera metadata on Commons. Our tests strip or keep it deliberately, as described in the EXIF guide. Photos that show people or signs are used only as test material; no person is identified.

SVG test files

The SVG minification and compression tests use 13 files from Wikimedia Commons that are marked as public domain there, downloaded on October 18, 2026. Only the files listed here were used; they are test material, and no endorsement by their authors or subjects is implied.

File on Wikimedia Commons	Kind	Licence	Bytes
Tango style ping icon.svg	icon	Public domain	1,649
Tango style Wikimedia Icon no shadow.svg	icon	Public domain	3,027
Tango-style question icon.svg	icon	Public domain	4,527
Tango style insert-signature icon.svg	icon	Public domain	3,737
Flag of Guatemala.svg	flag	Public domain	55,848
Flag of Soeda, Fukuoka.svg	flag	Public domain	6,268
Bandera de la República Española (1931-1939).svg	flag	Public domain	358,953
Flag of Mexico.svg	flag	Public domain	117,180
Endomembrane system diagram en.svg	diagram	Public domain	111,604
Flagellum base diagram-en.svg	diagram	Public domain	124,363
Complete neuron cell diagram en.svg	diagram	Public domain	312,443
Atmosphere composition diagram-en.svg	diagram	Public domain	302,184
United States Public Domain Map.svg	map	Public domain	211,292

Data and scripts

Download all scripts (ZIP, 72 KB) · Download the corpus list (CSV)

The archive contains the Node.js and Python scripts used for every experiment, the list above as photos.csv (with SHA-256 hashes of the downloaded originals) and env.json with all tool versions. The photographs themselves are not included; the script fetch_corpus.py downloads them again from Wikimedia Commons.