JPG → PNG
Turn JPG photos into lossless PNG instantly. 100% private, runs locally.
Drop files here
or browse from your device
images · audio · video · documents · archives · up to ~500MB
Your first conversion lands here automatically — saved on this device only, never uploaded.
100% Private
Runs in your browser. No upload.
Instant
No queue, no server roundtrip.
Offline-ready
Works after first load.
JPG throws away detail every time it is saved, and it has no transparency at all. Converting to PNG stops that decay: from this point on the pixels are stored losslessly, and you get an alpha channel to work with for logos, cut-outs and overlays.
JPG is the photographic workhorse of the web: a lossy format from 1992 that trades invisible detail for dramatically smaller files. Practically every camera, printer and upload form accepts it.
PNG cannot recover detail JPG already discarded, so the result looks the same as the source, just without further loss. The file usually grows, sometimes several times over, because PNG stores every pixel exactly rather than approximating them.
What you gain with PNG: Lossless quality, an alpha channel for transparency and universal support in every browser and operating system.
Drop your JPG file above and Morphio decodes it locally, then re-encodes it as PNG using WebAssembly + the browser's native codecs. Nothing is ever uploaded — your files stay on your device. Batch as many files as your machine can handle. See exactly how in-browser conversion works.
Open the JPG to PNG page, drop your image on the drop zone and press convert. Morphio runs an in-browser image pipeline built on Canvas and WebAssembly codecs, so the JPG data never leaves your device and no server ever receives a copy.
Colour profile and pixel dimensions are preserved; you choose the quality level before the file is written. Converting JPG to PNG only rewrites the container and encoding you asked for — the source file on your disk is never modified.
Yes. The free plan covers 10 conversions a day with files up to 200 MB and adds no watermark or sign-up. Morphio Pro ($5/month, or $29 once for lifetime access) removes the daily cap and raises the per-file limit to 5 GB.
It prevents further loss but cannot restore what JPG compression already removed. Think of it as freezing the current quality rather than upgrading it.
PNG is lossless, so photographic noise that JPG smoothed away must be stored pixel by pixel. Photos are usually two to five times larger as PNG.