Sample PNG images for testing uploads and viewers — free, CC0

PNG is the lossless image format of the web, and the one most image tools are checked against first. These files are the loremfile colour-bar test card, with a border, a centre cross and a label giving the dimensions and mode.

png/100x100.png, png/640x480.png and png/1920x1080.png are RGB at common sizes, and png/1x1.png is a single white pixel, the smallest useful PNG. png/transparent-256x256.png adds a horizontal alpha ramp, so transparency is visible rather than uniform, and png/grayscale-512x512.png is 8-bit greyscale, which catches code that assumes three channels.

png/animated-apng-10frames-128x128.png is an animated PNG of ten frames at 100 ms, with the colour bars rotating a step each frame. A decoder without APNG support shows only one frame, which is worth knowing before a resize step flattens it. For size limits, png/1mb.png is about 1 MB of seeded RGB noise that does not compress.

Related formats: JPEG, WebP, AVIF, GIF and SVG.

curl -O https://loremfile.dev/png/100x100.png

<img src="https://loremfile.dev/png/100x100.png" alt="">

curl -O https://loremfile.dev/png/1920x1080.png

<img src="https://loremfile.dev/png/1920x1080.png" alt="">

curl -O https://loremfile.dev/png/1mb.png

<img src="https://loremfile.dev/png/1mb.png" alt="">

curl -O https://loremfile.dev/png/1x1.png

<img src="https://loremfile.dev/png/1x1.png" alt="">

curl -O https://loremfile.dev/png/640x480.png

<img src="https://loremfile.dev/png/640x480.png" alt="">

curl -O https://loremfile.dev/png/animated-apng-10frames-128x128.png

<img src="https://loremfile.dev/png/animated-apng-10frames-128x128.png" alt="">

curl -O https://loremfile.dev/png/grayscale-512x512.png

<img src="https://loremfile.dev/png/grayscale-512x512.png" alt="">

curl -O https://loremfile.dev/png/transparent-256x256.png

<img src="https://loremfile.dev/png/transparent-256x256.png" alt="">