Convert JPEG to PNG — Lossless Quality
JPEG is the most common image format, but it uses lossy compression that degrades quality with each save. Converting to PNG gives you a lossless format that won't degrade further, making it ideal for editing workflows, archival, and any use case where pixel-perfect accuracy matters.
When to Use PNG Over JPEG
- Graphics and logos: PNG preserves sharp edges and text without compression artifacts
- Screenshots: Text and UI elements stay crisp in PNG format
- Editing workflow: Save intermediate edits as PNG to avoid cumulative JPEG quality loss
- Transparency: PNG supports alpha channels for transparent backgrounds
Understanding the File Size Increase
PNG files will be larger than the original JPEG because lossless compression retains all pixel data. A 200 KB JPEG photo may become 1-2 MB as PNG. This is expected — you're trading file size for quality preservation. If file size is a concern, consider WebP format which offers both quality and efficient compression.
All processing happens in your browser using the Canvas API. No data leaves your device.