JPG to PNG Converter with Transparent Background
Convert JPG or JPEG images to PNG in your browser. Keep the original background, clean it to white, make light backgrounds transparent, and optionally resize the PNG output to a target KB size for online forms.
PNG output options
How to Convert JPG to PNG
Upload JPG
Choose a JPG or JPEG image from your device.
Pick background
Keep the background, flatten it to white, or make light areas transparent.
Set size
Optionally set width, height, and a target KB size for form uploads.
Download PNG
Compare the result and download the final PNG file.
Why this JPG to PNG tool is different
Transparent PNG option
Turn plain white or light backgrounds into transparency for logos, signatures, stamps, and graphics.
Clean white background
Whiten plain light or gray background areas for forms and documents.
Resize PNG to KB
Target common upload limits like 100KB, 200KB, or 500KB when a form rejects large PNG files.
Private browser processing
The image is converted locally with browser APIs. No server upload is needed.
Convert JPG to PNG for Forms, Logos, and Signatures
JPG is a strong format for regular photos, but PNG is often better when you need crisp edges, transparent backgrounds, logos, stamps, scanned marks, or form-ready graphics. This converter lets you create a PNG file without uploading the image to a server.
Make White Background Transparent
The white-to-transparent option is designed for images with simple white or light backgrounds. It works well for many logos, stamps, and handwritten marks. For complex photo backgrounds, use a dedicated background remover because simple threshold cleanup may not isolate the subject perfectly.
Resize PNG to a Target KB Size
PNG files can become larger than JPG because PNG keeps more detail. If a portal asks for a PNG under a strict limit, turn on target KB resizing. The tool can reduce dimensions to get closer to limits like 100KB, 200KB, or 500KB.
If you need a signature-specific workflow, use the Signature Resizer. If your source file comes from an iPhone, use the HEIC to JPG converter first.
Trust and testing
Built for Private Browser-Based Conversion
Photo Resizer in KB is built by Mozammel Hoshen Chowdhury. We test this converter with sample JPG photos, logos, stamps, and plain-background images, then check PNG transparency, output dimensions, downloaded file size, and browser-only processing before publishing updates.
You can read how tool pages are reviewed in our editorial policy.
Frequently Asked Questions
Can I convert JPG to PNG for free?
Yes. Upload a JPG or JPEG image, choose the PNG output options, and download the converted file. The conversion runs in your browser.
Can this tool make a JPG background transparent?
Yes. Use White to transparent for logos, stamps, signatures, and images with a plain white or light background. Complex photo backgrounds may need a dedicated background remover.
Can I resize the PNG to a target KB size?
Yes. Turn on Resize PNG to a target KB size. PNG is lossless, so the tool may reduce dimensions to get closer to strict upload limits.
Is my JPG uploaded to a server?
No. JPG decoding, PNG conversion, transparency cleanup, and resizing happen in your browser. Your image stays on your device.
Why is my PNG larger than the original JPG?
PNG is usually lossless, while JPG is compressed for photos. For regular photos, PNG can be larger. PNG is best when you need transparency, crisp edges, logos, stamps, or clean form images.