Free tool · Convert
JPG to PNG
Convert JPEG images to lossless PNG.
Convert a JPG photo to lossless PNG format. Useful when you need to edit an image further without compounding JPG compression artifacts, or when a tool specifically requires PNG input. The conversion happens directly in your browser using the Canvas API.
- Files never leave your device
- Runs entirely in your browser
- Free, no account needed
How to use JPG to PNG
Two steps, and nothing to install.
Drop your JPG file
Drop your JPG onto the tool, or click to browse and select it. The photo stays on your device throughout.
Download your PNG
The tool re-encodes the image losslessly as PNG and hands you the file to download straight away.
More free tools
Free, private, and no sign-up on any of them.
How this works in your browser
Your JPG is decoded to raw pixels and drawn onto an HTML5 canvas, then exported through the browser’s PNG encoder. The important difference from the reverse conversion is that PNG uses DEFLATE, a lossless compression scheme, so the exported pixels are bit-for-bit what the canvas held. Nothing further is discarded. It also explains the file size: PNG cannot use the perceptual shortcuts JPEG relies on for photographic detail, so a photo re-saved as PNG is usually several times larger even though it looks identical.
JPG to PNG vs. upload-based online tools
| Feature | JPG to PNG (in-browser) | Upload-based online tools |
|---|---|---|
| File upload required | No - never leaves your device | Yes - file is sent to a server |
| Processing queue | None - starts instantly | Often, especially at peak times |
| Watermark on output | Never | Common on free plans |
| Usage limits | None - free, unlimited use | Often capped per day or file size |
| Works offline once loaded | Yes, for most tools | No - requires a live connection |
| Account required | No | Often, for anything beyond a trial |
Who uses JPG to PNG
Editing without compounding losses
Convert before a round of cropping or retouching so repeated saves do not stack JPEG compression damage on top of itself.
Meeting a PNG-only requirement
Some upload forms, design tools and print templates accept PNG exclusively, regardless of what the image actually contains.
Preparing an image for compositing
Get a photo into PNG so it sits alongside logos and graphics in a workflow that expects a lossless format throughout.
Frequently asked questions
What it can and cannot do, and what happens to your files.
Will this recover detail lost in the original JPG compression?
No. Converting to PNG stops further lossy compression, but it cannot restore detail already lost when the file was first saved as JPG.
Will the PNG file be larger than the JPG?
Usually yes, since PNG is lossless and does not compress photographic detail as efficiently as JPG.
Does the tool add a transparent background?
No. JPGs have no transparency data, so the PNG output is fully opaque, matching the original image.
Why would I convert to PNG if the file gets bigger?
Because PNG is lossless. Every further save of a JPG re-compresses it and degrades it a little more, so converting to PNG first freezes the image at its current quality while you crop, annotate or composite it.
Will this remove JPG artifacts?
No, and be wary of any tool that claims otherwise. Blocky edges and halos are baked into the pixels; the PNG faithfully preserves them rather than repairing them.
Is my image uploaded anywhere?
No. The file is decoded and re-encoded entirely inside your browser tab.
Convert JPG to PNG - free, no quality loss added.
Files never leave your device. No upload, no account, and free for unlimited use.
Also see: PNG to JPG