JPG to PNG converter
Turn JPG and JPEG photos into lossless PNG files. Convert one image or a batch, then download each PNG or all of them as a ZIP — processed entirely on your device.
Runs entirely in your browser — nothing is uploaded.
Converting JPG → PNG
When converting JPG to PNG makes sense
PNG is a lossless format, so every edit and re-save keeps the pixels exactly as they are. That makes it the better working format for many design and documentation tasks.
Editing without generation loss
Every time a JPG is saved it is compressed again and loses detail. Converting to PNG first lets you crop, annotate and re-save as often as you like.
Preparing for transparency
JPG cannot hold a transparent background. Converting to PNG gives you a file you can later cut out in an editor and keep transparent.
Expect larger files
PNG stores photos less efficiently than JPG, so the converted file is often 2–5× bigger. If size matters more than editing, consider JPG to WebP instead.
Quality is preserved, not restored
Conversion keeps the JPG exactly as it looks now. It cannot remove existing compression artifacts or blur — it only stops further loss.
How to convert JPG to PNG
- Drag your JPG files onto the drop area, or click it to pick them.
- Each image converts to PNG instantly — the new size appears beside it.
- Download files one by one, or click Download all as ZIP.
Need the file under a size limit too? Run it through the Image Compressor to hit 100KB, 200KB or 500KB. Browse every utility in Mailvern's free tools.
Other image conversions
Each converter runs on the same private, in-browser engine.
Frequently asked questions
Everything people usually ask about this tool.
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