CaseWren

JPG to PNG Converter

Convert JPG images to PNG locally - free, instant, no upload.

PNG

About the JPG to PNG Converter

Drop a JPG file above and this converter re-encodes it as PNG entirely inside your browser - no server round-trip, no queue, no watermark. You can convert up to five images at once and see the exact before-and-after file sizes, so you know precisely what you gained before you download.

The classic reason to convert JPG to PNG is editing: every time you re-save a JPG it loses a little more detail, while PNG survives unlimited re-saves. Convert once, do your cropping and annotating, and export back to JPG only at the very end. PNG also records sharp UI screenshots and line art without the blocky compression artifacts JPG leaves around text edges.

How to use it

  1. 1Drop one or more JPG images onto the upload area (up to 5 at a time).
  2. 2Click Convert - PNG is lossless, so no quality setting is needed.
  3. 3Compare the new file size shown next to each image, then download the PNG version.

Frequently asked questions

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