Skip to main content
Toolzum

Image format · .png

PNG: what it’s for

PNG (Portable Network Graphics) is the format for images that must stay pixel-perfect: screenshots, logos, UI graphics, charts, and anything with sharp edges or text. Its lossless compression and full alpha transparency make it the default for graphics, though photos end up much larger than JPG.

Strengths

  • Lossless compression — pixels survive every save unchanged
  • Full alpha transparency, from glassy overlays to soft shadows
  • Universally supported: every browser, editor, and OS opens PNG
  • Ideal for text, line art, and screenshots where JPG smudges edges

Honest limits

  • Photos are 3–5x larger than the same shot saved as JPG
  • No animation support (APNG exists but is rarely the right tool)
  • Our converter exports PNG losslessly — there is no quality slider because none applies
  • Converting a JPG to PNG never restores quality lost to JPG compression

Free PNG tools

Every tool runs in your browser — files never leave your device. Badges say exactly what each tool does with PNG.

PNG FAQs

When should I use PNG instead of JPG?

Use PNG for screenshots, logos, graphics with text, and anything needing transparency. Use JPG for photographs, where PNG files would be several times larger with no visible benefit.

Does converting JPG to PNG improve quality?

No. Conversion cannot recover detail that JPG compression discarded — it only makes the file bigger. Convert for compatibility or transparency needs, not for quality.

Do PNG files keep transparency when converted?

Converting to PNG preserves transparency. Converting PNG to JPG flattens transparency onto a white background, since JPG has no alpha channel.

Are my PNGs uploaded anywhere?

No. Every Toolzum image tool processes files locally in your browser — nothing leaves your device.