JPEG to PNG Converter
Convert JPEG images to lossless PNG format.
Drop your JPEG image here
or click to browse · max 50 MB
Settings
wasm-vips (~5MB) will be downloaded on first use and cached by your browser.
JPEG to PNG Converter
Converts JPEG images to lossless PNG format. While this won't restore quality lost during JPEG compression, the resulting PNG won't degrade further with subsequent edits.
What is it used for?
- Preparing JPEG images for editing (no further quality loss on save)
- Adding transparency support to JPEG images
- Converting for software that requires PNG input
- Archival purposes
Step-by-Step Guide
- Upload a JPEG image
- Adjust compression level
- Click 'Convert to .PNG'
- Download the PNG
How it works
Upload a JPEG image and click Convert. wasm-vips decodes the JPEG and encodes as lossless PNG.
Tips & Best Practices
- Useful before editing to prevent additional JPEG artifacts
- The PNG file will be significantly larger than the original JPEG
Frequently Asked Questions
Will this improve JPEG quality?
No. Converting to PNG preserves current quality but cannot restore data lost during JPEG compression. The benefit is no further loss on re-saving.
Privacy & Security
This tool uses wasm-vips (libvips compiled to WebAssembly). The WASM binary (~5MB) is downloaded on first use and cached by your browser. All image processing happens locally on your device - your images are never uploaded to any server. This makes it safe for sensitive, private, or confidential images.