Sample PNG File Download — 100 KB to 10 MB or Any Size

PNG is the go-to format for screenshots, UI exports, and any image that needs lossless quality. Testing an image upload pipeline, CDN processing job, or image optimization service means you need a valid PNG — not a file that merely has the right extension. The file generated here includes a proper IHDR chunk, compressed IDAT image data, and a correct IEND marker, so any PNG reader from Photoshop to a Python Pillow script opens it without errors. Generated at any exact size you need, entirely in your browser.

Common PNG Image test sizes

Each preset is generated in your browser at exactly that many bytes (decimal: 1 MB = 1,000,000 bytes). For any other size, use the generator above.

100 KB sample PNG Image file

A 100 KB PNG is a realistic size for UI screenshots, small icons, and lossless web graphics. It is also a common threshold for image upload validators and CDN free-tier limits. This file is a genuinely valid PNG — proper chunk structure, correct CRC values — at exactly 100,000 bytes, generated entirely in your browser.

500 KB sample PNG Image file

Half a megabyte puts you in the range of a full-resolution UI mockup export or a high-quality product screenshot. It is large enough to exercise CDN image processing and lossless optimization pipelines, while staying well within typical upload form limits. Valid PNG structure, generated in your browser with nothing uploaded.

1 MB sample PNG Image file

One megabyte is a common checkpoint for PNG-specific upload limits — social media platforms, design tools, and CMS image uploads often draw a line here. A valid 1 MB PNG at exactly 1,000,000 bytes lets you confirm where your upload handler stands on either side of that boundary. Generated entirely in your browser.

5 MB sample PNG Image file

A 5 MB PNG is a realistic output size for a full-resolution Retina screenshot, a banner export from Figma, or a lossless photo from a mid-range camera. Use it to test image optimization APIs (pngquant, Squoosh, Cloudflare Images) and verify that your CDN handles lossless files of this size without errors or silent truncation. Valid PNG, generated in your browser.

10 MB sample PNG Image file

Ten megabytes is where PNG image processors start sweating — this is the size of high-resolution print exports, uncompressed scanned documents, and deep-zoom map tile sources. Use it to expose memory allocation failures in image processing libraries and to verify CDN size limits on lossless assets. Valid PNG with correct chunk structure, generated entirely in your browser.

Common use cases for PNG Image test files

Testing image upload size limits on social platforms and cloud storage APIs
Validating CDN image processing and optimization pipelines
Stress-testing image transformation APIs (resize, crop, format conversion)
Checking screenshot capture and export tools with a known-valid baseline

Related formats

Sample File Generator — all 20 formats, any exact size, free in-browser download.

Frequently asked questions

Will this PNG open in Photoshop, Figma, and GIMP?

Yes. The file is a valid PNG with the spec-required IHDR, IDAT, and IEND chunks. Every standards-compliant PNG decoder — including Photoshop, Figma, GIMP, macOS Preview, and browser image rendering — handles it without warnings or errors.

Does the generated PNG use transparency (alpha channel)?

The default output is opaque RGB (no alpha). That covers the most common test case for upload validators and CDN processors. If your pipeline specifically processes transparency, note that when building your test fixture.

What are the pixel dimensions of the generated file?

The generator scales dimensions to hit your exact byte target. A larger file will have higher pixel dimensions. This mirrors real-world PNG behavior where a high-resolution screenshot is larger than a thumbnail.

Download a Sample PNG File (Any Size)