Convert JPG/JPEG photos to high-quality PNG format. Fast, private, and runs entirely in your browser.
All format conversion happens locally in your browser. Your files never leave your device.
Quick Answer
Upload a JPG image and convert it to lossless PNG format. Use this when you need a stable working copy that won't degrade with repeated editing or when you need transparency support.
This tool leverages the HTML5 Canvas API to decode your compressed JPEG and re-encode it natively into the lossless PNG format. Because it runs locally, you can convert massive files without waiting for slow server uploads.
Process your images in seconds with these simple instructions.
Select the JPEG file you want to convert.
The tool instantly loads the file into memory.
Click download to save the lossless PNG version.
PNG is a lossless format, meaning the resulting file will not degrade further.
Convert files instantly using your local device memory.
Your sensitive files never touch a remote server.
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Upload a file, choose output quality settings, and download the converted result. Everything stays on your device.
Works with files up to 50MB. Larger files may take longer depending on your device.
Difficulty: beginner
Source Format
Compression: Varies by format
Transparency: Check each format
Output Format
Optimized for your needs
Quality setting: Configurable
Size changes vary by format. The quality slider lets you balance file size and visual fidelity. Higher quality = larger file.