Convert JPG to PNG - Lossless Quality
Convert JPG to PNG free in your browser. Get a lossless PNG that stops further compression loss, with no upload and no signup.
Turn JPEG photos into lossless PNG images in your browser. No further quality loss, no upload, and no signup.
Drag and drop your JPG file here
or
No size limit. The tool runs 100% locally on your computer.
How to Use Convert JPG to PNG - Lossless Quality
- Add your JPG. Drag the file onto the box above, or click Browse Files. Both .jpg and .jpeg files work.
- The image is decoded in your browser. It is drawn onto an HTML5 Canvas at its full resolution, with no server involved.
- It is re-encoded as a lossless PNG. No new compression artifacts are added, so the quality is frozen exactly where it is. The original and new file sizes are shown for comparison.
- Download. Click Download PNG to save the file, or Convert Another to process the next one. Nothing is ever uploaded.
Frequently Asked Questions
Why convert a JPG to a PNG?
PNG is lossless and supports transparency, while JPG is lossy and cannot. Converting is useful when
you want to edit the image repeatedly, add transparency in an editor, or stop further quality loss
from re-saving as JPG.
Will the PNG look better than the JPG?
It will not recover detail the JPG already lost, but it will not lose any more. Converting freezes
the current quality and prevents the gradual degradation that repeated JPG saving causes.
Why is the PNG file larger?
PNG uses lossless compression, so a photo saved as PNG is typically 2 to 5 times larger than the
JPG. That is expected. Choose PNG when quality and editing matter more than file size.
Does the PNG get a transparent background?
No. A JPG has no transparency to begin with, so the PNG keeps the same solid background. You can
later remove or replace that background in an image editor.
Is my image uploaded anywhere?
No. Everything runs in your browser. The file never leaves your computer, so the tool works offline
and keeps private images private.
Does it work with .jpeg as well as .jpg?
Yes. They are the same format with different extensions, and the tool accepts both.
Does it keep the same dimensions?
Yes. The width and height in pixels stay identical. Only the format and compression change.
When should I pick PNG over JPG?
Use PNG for logos, screenshots, diagrams, images with sharp text, and anything you plan to edit
again. Use JPG for photographs you want to keep small.
Does it work on a phone or tablet?
Yes. It runs in any modern browser on Android, iPhone, iPad, Windows, Mac, and Linux, with no app
to install.
Can I convert several JPGs at once?
The tool converts one image at a time so you can preview each result. Use Convert Another to run
through several files in a row.