Sample PNG Files — Transparent & Opaque Test Images
Download free sample PNG images — transparent and opaque variants in RGBA, RGB, grayscale, indexed color, and 1-bit. Includes icons (32px to 256px) and favicons. Perfect for testing image handling with alpha channels.
sample-100kb.png
1280×720 · 24-bit · RGB
sample-500kb.png
1920×1080 · 24-bit · RGB
sample-1mb.png
2560×1440 · 24-bit · RGB
sample-5mb.png
4096×2160 · 24-bit · RGB
transparent-small.png
200×200 · 32-bit · transparent · RGBA
transparent-logo.png
500×500 · 32-bit · transparent · RGBA
transparent-1080.png
1920×1080 · 32-bit · transparent · RGBA
sample-rgba.png
1000×1000 · 32-bit · transparent · RGBA
sample-rgb.png
1000×1000 · 24-bit · RGB
sample-grayscale.png
1000×1000 · 8-bit · Grayscale
sample-indexed.png
500×500 · 8-bit · Indexed
sample-1bit.png
500×500 · 1-bit
sample-icon-32.png
32×32 · 32-bit · transparent · RGBA
sample-icon-64.png
64×64 · 32-bit · transparent · RGBA
sample-icon-256.png
256×256 · 32-bit · transparent · RGBA
sample-favicon-16.png
16×16 · 32-bit · transparent · RGBA
Transparent PNG files — what they're used for
- Logos and icons overlaid on colored backgrounds
- Watermarks for images and documents
- UI elements in web and app design
- Sprite sheets for games and animations
- Stickers for chat apps and social media
PNG bit depth explained
| Bit Depth | Colors | Use Case | File |
|---|---|---|---|
| 1-bit | Black & white | Line art, QR codes | sample-1bit.png |
| 8-bit indexed | 256 colors | Simple graphics, older formats | sample-indexed.png |
| 8-bit grayscale | 256 shades | Medical imaging, documents | sample-grayscale.png |
| 24-bit RGB | 16.7M colors | Standard photos | sample-rgb.png |
| 32-bit RGBA | 16.7M + alpha | Logos, UI elements, icons | sample-rgba.png |
PNG vs JPG — when to use each
Use PNG when
- Transparency needed (logos, icons)
- Lossless quality required (diagrams, text)
- Screenshots and screen-recorded content
- Small graphics with flat colors
Use JPG when
- Photographs and complex images
- File size is critical
- No transparency needed
- Social media uploads
Technical specifications
| Compression | Lossless (DEFLATE) |
| Color modes | RGBA, RGB, Grayscale, Indexed, 1-bit |
| Transparency | Full alpha channel (0–255 opacity) |
| Dimensions | 16×16 to 4096×2160 |
| EXIF data | None (stripped) |