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JPG to PNG Converter
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No file size limit · Processed in your browser
How to Convert JPG to PNG
- 1Click 'Choose File' or drag your JPG image into the drop zone
- 2Your browser converts it to lossless PNG locally
- 3Click 'Download PNG' to save your file
JPEG compression works by analyzing image data in 8×8 pixel blocks, discarding frequencies that the human eye is less sensitive to, and storing an approximation of the original. The first time this is done, at a high quality setting, the result is nearly indistinguishable from the original. But if you open that JPEG, make an adjustment, and save it as JPEG again, the compression runs on already-compressed data. Artifacts from the first pass get compressed again. Do this repeatedly — cropping, color correcting, adding text, resizing — and the image visibly degrades. Edges get blurry, flat colors develop noise, and fine detail disappears.
Converting to PNG stops that process. PNG is a lossless format — once your image is in PNG, you can save it ten thousand times and the pixel data will be bit-for-bit identical every time. For any image you're actively editing, PNG is the right working format. Use JPG for the final export that goes to a website, email, or print service; use PNG for everything in between.
There is an important clarification about what this conversion does and doesn't do. Converting JPG to PNG does not restore quality that was already lost in the original JPEG. If your JPG has visible compression artifacts — the blocky patterns around edges and text that appear in heavily-compressed files — those artifacts are now part of the pixel data. PNG will store them faithfully without adding new ones, but it cannot reverse the original compression. Think of it as putting the current state of the image in a lossless container, not recovering the original.
Common workflows that require this conversion: extracting a still frame from a video for further compositing; using a JPG as a base for a design that will be layered and re-exported multiple times; submitting images to platforms that specifically require PNG (some academic journals, certain government systems, and design collaboration tools); or creating assets that will be used as textures in 3D software where lossless input is preferred.