PNG (Portable Network Graphics) is a PNG format commonly used for logos, screenshots, transparent graphics. This guide covers compatibility, compression, transparency, and conversion choices.
| Feature | Support |
|---|---|
| Transparency | alpha |
| Animation | apng_depends |
| Primary uses | screenshots, logos, transparent graphics, line art, lossless intermediates |
Extension
.png
Compression
lossless
Browser support
universal
Inventor
PNG Development Group
Inventor organization
W3C / independent PNG authors
Origin year
1996
Lossless pixels
Alpha transparency
Sharp graphics
Large for photos
Not ideal for bandwidth-sensitive photos
PNG is the dependable lossless format for screenshots, logos, UI captures, line art, and transparent graphics. It preserves decoded pixels without lossy compression, but photographic images can become much larger than JPG, WebP, or AVIF.
PNG was developed in the mid-1990s as an open, patent-free replacement for GIF, adding lossless compression and robust alpha transparency.
Use PNG as the target when crisp edges or alpha transparency matter. Convert PNG to JPG, WebP, or AVIF when smaller files are more important than exact pixel preservation.
PNG is lossless for decoded pixels. File size depends heavily on image content: screenshots and graphics compress well, photos often do not.
PNG can store text chunks, Exif/XMP metadata, ICC profiles, gamma and chromaticity data. Strip privacy metadata carefully; removing color/profile chunks can change appearance.
Universal support for static PNG; APNG support varies by software.
format slug
png
inventor
PNG Development Group
strengths
Lossless pixels, Alpha transparency, Sharp graphics
use cases
screenshots, logos, transparent graphics, line art, lossless intermediates
weaknesses
Large for photos, Not ideal for bandwidth-sensitive photos
color depth
1 to 16 bits per sample depending on color type.
compression
lossless
origin year
1996
standard owner
W3C
browser support
universal
metadata support
text, Exif, XMP, ICC, gamma, chromaticity
software support
Universal support for static PNG; APNG support varies by software.
animation support
apng_depends
compression method
PNG filtering with DEFLATE compression
best source formats
svg, psd, tiff, bmp
best target formats
jpg, webp, avif
transparency support
alpha
inventor organization
W3C / independent PNG authors
PNG transparency support is: alpha. Choose a target format with alpha support when transparent backgrounds matter.
Convert PNG when another format better matches compatibility, file size, transparency, metadata, or editing needs.
Yes. JPG has no alpha channel, so transparent areas are flattened onto a background color.
PNG is lossless and keeps exact pixel detail. That is useful for graphics but often larger for photos.
PNG preserves pixels exactly, but JPG can look visually similar at a much smaller size for photographs.
Static PNG is universal. APNG stores animation, but support and file-size behavior differ from normal PNG.
W3C - official_spec
MDN Web Docs - browser_documentation
ExifTool - library_documentation
sharp - library_documentation