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.png — Portable Network Graphics

PNG Development Group · 1996

Developer

PNG Development Group

What is a .png file?

PNG (Portable Network Graphics) is a lossless image format designed as an improved, non-patented replacement for GIF. It supports full-color images with transparency (alpha channel), making it perfect for logos, icons, screenshots, and web graphics. Unlike JPEG, PNG preserves every pixel exactly, so images never lose quality when saved multiple times. The tradeoff is larger file sizes compared to JPEG for photographs.

Programs That Open .png Files

Platform	Program
Windows	Windows Photos	Free
	Adobe Photoshop	Paid
	GIMP	Free
	Paint.NET	Free
macOS	Preview	Free
	Adobe Photoshop	Paid

Common Problems with .png Files

⚠️ Cannot open .png file

Install one of the recommended programs listed above. For a free option, try the first free program in the list.

⚠️ .png file is corrupted

Try re-downloading the file. If the file was transferred, ensure the transfer completed without errors.

Frequently Asked Questions

What program opens .png files?▼

.png files can be opened with several programs. Windows Photos is one of the most popular choices.

Is .png a safe file format?▼

Generally yes, .png files are safe to open with appropriate software.

Can I convert .png to another format?▼

Yes, there are many online and offline tools available to convert .png files. Check the conversion section above for specific methods.

Technical Details

Portable Network Graphics files use the image/png MIME type and were first introduced in 1996 by PNG Development Group. The file can be identified by its signature: 89 50 4E 47 (‰PNG).

Did You Know?

Portable Network Graphics was first released in 1996 by PNG Development Group

Security Information

.png files are generally safe to open. However, always ensure your software is up to date to protect against potential vulnerabilities.