Convert JPG to PNG
Convert JPG to PNG free in your browser. No upload, no signup, no watermark. Files stay on your device.
drop a .jpg file
or click to browse
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guide
how to convert jpg to png
Drop your JPG file
Drag your JPG file into the drop zone above, or click the box to pick a file from your computer or phone. The browser reads the file directly — nothing uploads.
Click Convert
The page runs Canvas API on your device to decode the JPEG and encode it as Portable Network Graphics. Most conversions finish in a few seconds; large or codec-heavy files (RAW, video) can take longer.
Download the PNG file
When the conversion finishes, the PNG file is ready to download. Save it anywhere on your device.
FAQ
common questions
Will my JPG file lose quality when converted to PNG?
No further loss, but going from JPEG to Portable Network Graphics can't recover what was already thrown away. The lossy compression in your JPG is baked in — converting to PNG preserves the file you have now byte-perfectly, but the artefacts your original encoder introduced will travel with it.
What happens to transparency when converting JPG to PNG?
Portable Network Graphics supports an alpha channel, but JPEG doesn't carry one — there's no transparency information in your JPG for the PNG to preserve. The output will be fully opaque unless you add transparency later in an editor.
Will the PNG file be smaller or larger than my JPG?
Usually much larger — sometimes 2–10× the size of the source. Portable Network Graphics is a less compressed format than JPEG; the trade-off is editability or compatibility rather than file size.
When does it make sense to convert JPG to PNG?
Common reasons: JPG is lossy — every re-save reduces quality, while PNG is lossless — saving and re-saving never degrades quality. Converting also matters when the app, device, or platform you're sharing with prefers Portable Network Graphics — every image viewer, browser, and graphics tool.
Where will my PNG file open after conversion?
Every image viewer, browser, and graphics tool. Portable Network Graphics is widely enough supported that you can hand the output file to most modern apps and expect them to render it.
Does this site upload my JPG files anywhere?
No. The whole conversion runs in your browser using Canvas API. The file you drop in never leaves your device — we don't see it, and we couldn't even if we wanted to.
Is there a file size limit for JPG to PNG?
There's no hard cap — limit is your device's memory. Several hundred megabytes works fine on a typical laptop. Phones and low-RAM machines may struggle with very large files.
Does JPG to PNG work offline?
Once this page has loaded, yes. The converter library lives in your browser and runs without any further network calls. Reloading the page does still need connectivity.