What conversion preserves
The visible decoded pixels are written to PNG without a new lossy quality step.
Image tools · Format conversion
Convert JPG to PNG in Your Browser
Create a lossless PNG container from JPG or JPEG files without uploading your photos to any server.
Convert on your device
Choose images and an output format
The practical guide
Move JPG images into a lossless PNG workflow.
PNG avoids further lossy compression during this conversion and works well when the next editor or system specifically requires PNG.
What it cannot restore
Detail already removed by the original JPEG compression cannot be recovered simply by changing the container to PNG.
File size expectations
PNG copies of photographs are often larger than the original JPG because PNG uses lossless compression.
Privacy by architecture
Your files and tool inputs stay in your browser.
The selected files, inputs, settings, and outputs are processed in this page and are not uploaded to any server.
Questions, answered
Frequently asked questions
Is my image uploaded?
No. The selected image is decoded and re-encoded inside this browser tab. The file and output are not uploaded to any server.
Does this improve image quality?
No. It prevents another lossy encoding step but cannot recreate detail missing from the JPG.
Will the PNG be transparent?
No. JPG has no transparency information to restore.