JPG → PNG Converter (No Upload) – Free & Private

Convert JPG to PNG instantly in your browser—no uploads, 100% private. Batch up to 20 images and download PNG or ZIP.

JPG → PNG Converter

Fast. Private. 100% client-side (your images never leave your browser).
Drag & Drop JPGs
or click to select up to 20 files
Queue & Results
0 files
Built for privacy. Processing happens locally in your browser via HTML5 Canvas.

Free Online JPG to PNG Converter — Private, Fast, and Simple

Need a quick way to convert JPG to PNG without uploading files to a server? This tool runs entirely in your browser using HTML5 Canvas. Your images never leave your device. That means instant speed, total privacy, and zero risk of file snooping.

How to Convert JPG to PNG

  1. Click Drag & Drop JPGs or drop up to 20 images into the box.
  2. (Optional) Set a max dimension if you want to resize.
  3. (Optional) Choose a background color if your JPG edges need filling.
  4. Press Convert to PNG or Download All (.zip) for a batch export.

When Should You Use PNG Instead of JPG?

  • Transparency: PNG supports alpha transparency (JPG doesn’t).
  • Sharp edges & text: Logos, UI elements, and screenshots often look cleaner as PNG.
  • Archiving graphics: PNG is lossless—no repeated compression artifacts.

Key Features

  • 100% client-side: images never leave your browser.
  • Batch conversion with ZIP download.
  • Optional size limit to keep pages light.
  • Works on desktop and mobile—no signup, no watermarks.

JPG vs PNG: Quick Comparison

Feature JPG PNG
CompressionLossyLossless
TransparencyNoYes (alpha)
Best forPhotos, web imagesLogos, UI, line art

FAQ

Is this converter really private?
Yes. All processing happens locally in your browser; nothing is uploaded to our servers.

Will PNG files be larger?
Sometimes. PNG is lossless. If you need small files, use the max-dimension option before export.

Can I convert multiple JPGs at once?
Yes—drop up to 20 JPGs and use Download All (.zip).

Does PNG keep photo quality?
PNG preserves pixels exactly as rendered. For photos where size matters, JPG is often smaller.