Convert JPG to PNG without uploading
Drop your JPG files below. You get PNG back in seconds. No upload, no queue, no limits, no watermark.
Drop images here or click to browse
HEIC · JPG · PNG · WebP · GIF · BMP. Nothing is uploaded.
Output:PNG · need another format?
Why convert JPG to PNG?
JPG is the most widely supported image format ever, but its compression is dated. Modern formats pack the same quality into far fewer bytes. PNG keeps every pixel intact and supports transparency, ideal for graphics and editing.
When you actually need this
Some editors, print workflows and document pipelines insist on PNG. Converting also gives you a lossless working copy, so repeated edits and saves stop degrading the image further.
What it costs you
The file gets much larger and the quality does not improve. Our 33 KB test JPG became a 304 KB PNG — nine times the size for exactly the same picture. PNG preserves what is there; it cannot restore detail the JPG already discarded.
What happens to the file size
On this site's own 800×600 test image, 33 KB of JPG became 304 KB of PNG. That is 9.1× the original. Worth it when you need what PNG gives you, wasteful when you do not.
How it works
Drop your JPG files above and pick a quality. Each one is decoded to raw pixels in a background thread, re-encoded as PNG, and handed straight back to you — individually or as a ZIP. Nothing queues, because nothing leaves.
Frequently asked questions
Will converting to PNG improve the quality?
No, and it is worth being clear about that. JPG compression permanently discards detail. PNG stores whatever it is given without losing anything more, so the PNG is an exact copy of an already-lossy image — at nine times the size. It is useful as an editing master, not as a repair.
Is it really private? Where do my JPG files go?
Nowhere. The JPG is decoded and re-encoded as PNG by your own browser, using WebAssembly — the same technology behind Photopea and Google's Squoosh. Load this page, switch off your internet, and the conversion still works. There is no upload step to opt out of, because there is no server to upload to.
Is there a file size or daily limit?
No. Your device does the work, so there is no bill for us to protect. The practical ceiling is your own memory: a batch of JPG files converts fine, but very large images on an older phone can run out of room, and the tool will say so rather than fail silently.
Is QuietPix free?
Yes. Free for personal and commercial use, supported by small ads placed outside the tool itself. No account, no trial, no watermark on anything you convert.