Convert JPG to PNG — Free
Files convert instantly in your browser — 100% private, any file size, no account needed.
Drop your JPG file here
or click to browse — any size
Conversion runs entirely in your browser — your file never leaves your device.
How to convert JPG to PNG
Convert your JPG images to PNG format quickly and easily with BoltConverter. Our free online tool provides a fast way to transform your photos and graphics without any software installation.
BoltConverter performs all conversions directly in your web browser using WebAssembly. This means your files never leave your device, ensuring complete privacy and security for your images.
Upload Your JPG File
Click the 'Upload' button or drag and drop your JPG image onto the page.
Start Conversion
The conversion to PNG will begin automatically once your file is loaded.
Wait for Processing
BoltConverter processes your image directly in your browser.
Download Your PNG
Once complete, click the 'Download' button to save your new PNG file.
Frequently asked questions
Is BoltConverter's JPG to PNG tool free to use?
Yes, BoltConverter is completely free for converting JPG images to PNG format.
Do my files get uploaded to a server for conversion?
No, your files never leave your device. All JPG to PNG conversions happen directly in your web browser using WebAssembly.
Is there a file size limit for JPG to PNG conversions?
Since conversions occur in your browser, there is no server-side file size limit. Your device's memory is the only constraint.
What is the quality of the output PNG file?
BoltConverter aims to maintain the highest possible quality. PNG is a lossless format, so the output will preserve image detail well.
Can I convert multiple JPG files to PNG at once?
Currently, BoltConverter processes one JPG file at a time for conversion to PNG.