What is JPG to PNG Converter?
JPG to PNG Converter converts JPEG images to PNG format in your browser — no upload to server, instant download. Use it when you need a lossless copy of a JPEG for further editing or when a workflow specifically requires PNG input.
PNG is not automatically “better” than JPEG — they serve different purposes. Use this converter when you have a specific reason to need PNG, not as a default quality upgrade.
JPEG vs PNG — Format Comparison
JPEG
Lossy compression. Best for photographs. Small file sizes. No transparency. Quality degrades with each re-save.
PNG
Lossless compression. Best for logos, icons, screenshots. Supports transparency. Larger files for photos.
When to Convert
Need transparency, need to re-edit without loss, workflow requires PNG, or image is non-photographic (UI screenshot, diagram).
When NOT to Convert
Don't convert photos to PNG for web use — the file will be 5–10× larger with no visual benefit.
How to Use JPG to PNG Converter
Upload your JPEG
Drag-and-drop or click to upload a .jpg or .jpeg file.
Preview the result
The converted PNG preview appears alongside the original.
Download the PNG
Click 'Download PNG' to save the converted file.
File Size Impact
| Image Type | Original JPEG | Converted PNG | Size Increase |
|---|---|---|---|
| Product photo | 120 KB | 980 KB | ~8× larger |
| UI screenshot | 85 KB | 210 KB | ~2.5× larger |
| Logo/icon | 22 KB | 18 KB | Slightly smaller |
| Illustration | 65 KB | 95 KB | ~1.5× larger |
Tips & Common Mistakes
Use PNG for screenshots and UI assets, JPEG for photos. This is the general rule before any conversion. If your image is already in the right format for its content, converting adds file size with no benefit.
Converting does not remove JPEG artifacts. Blocky compression artifacts and color banding from the original JPEG are preserved in the PNG. The PNG just stops further degradation.
For web delivery, stay JPEG (or use WebP). If you’re converting to upload to a website, reconsider — JPEG loads faster. PNG makes sense for assets that need transparency or will be used in a design workflow.
Related Tools
- PNG to JPG Converter — go the other direction
- Image Compressor — reduce file size of either format
- Image Resizer — resize before or after converting