JPG to PNG Converter — Free, Lossless, No Watermark
Convert JPEG to lossless PNG instantly — no quality loss, no watermark, no signup. Upload your JPG and download a full-quality PNG file in seconds. 100% free.
✓ Free · ✓ No upload · ✓ Works offline in your browser
JPG vs PNG: When to Use Each Format
JPG (JPEG) is great for photographs — it achieves small file sizes using lossy compression. PNG is better for graphics, logos, screenshots, and images that need to be edited, since it uses lossless compression and preserves every pixel.
Use PNG when: editing images multiple times, working with text or line art, needing transparency, or creating web graphics. Use JPG when: sharing photos online, reducing file size for email or social media.
Frequently Asked Questions
How do I convert JPG to PNG for free without watermark?
Upload your JPG above and click Convert. PhotoRule draws it on an HTML Canvas and exports a PNG — entirely in your browser, with no watermark, no signup, and no server upload.
Does converting JPG to PNG lose quality?
No quality is lost in the conversion itself. PNG uses lossless compression, so the exported PNG is an exact pixel-for-pixel copy of the source. Note: JPEG artifacts already present in the source file are preserved — they can't be removed by format conversion.
Why convert JPG to PNG?
PNG is lossless — it never degrades when saved. Use PNG for: images you'll edit repeatedly, logos and graphics with sharp edges, screenshots with text, and any image where you need to preserve exact pixel values.
Can I convert JPG to PNG with transparent background?
JPG files don't support transparency, so a converted PNG will have a white (opaque) background. To add transparency you would need to edit the PNG in an image editor afterward to remove the background.
Is there a file size limit?
No server-side limits — conversion runs entirely in your browser. Very large images (above 20 megapixels) may take a moment but there's no cap.
When should I use JPG instead of PNG?
Use JPG for photographs shared on social media or email where file size matters. Use PNG for logos, screenshots, web graphics, and any image you plan to edit further.