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Supports: JPG, JPEG, JFIF
JPEG uses lossy compression — every time you save a JPEG, some image data is permanently discarded. PNG uses lossless compression, preserving every pixel exactly. Converting JPEG to PNG is useful when you need to add a transparent background (PNG supports alpha transparency, JPEG does not), prevent further quality degradation from repeated edits and saves, preserve sharp edges on text, logos, or screenshots, and use the image in design software that works better with lossless formats.
| Feature | JPEG | PNG |
|---|---|---|
| Compression | Lossy (data discarded) | Lossless (data preserved) |
| Transparency | Not supported | Full alpha channel |
| File size (photo) | Smaller (~200 KB) | Larger (~800 KB) |
| File size (graphic) | Similar | Often smaller with color reduction |
| Repeated saves | Quality degrades each time | No quality loss |
| Best for | Photos, web images | Logos, screenshots, graphics |
| Color depth | 8-bit (16.7M colors) | 8-bit or 16-bit |
| Browser support | Universal | Universal |
| Scenario | Best Format | Why |
|---|---|---|
| Website photos | JPEG | Smaller file size, faster loading |
| Logo with transparent background | PNG | Transparency support, sharp edges |
| Screenshot of text/UI | PNG | Lossless preserves text sharpness |
| Social media photo | JPEG | Smaller upload, platforms re-compress anyway |
| Graphic design asset | PNG | Lossless editing, transparency |
| Print-quality photo | PNG or TIFF | No compression artifacts |
No. Converting JPEG to PNG preserves the current quality but cannot recover data already lost by JPEG compression. The benefit is that the PNG version won't lose any additional quality on future saves. For best results, start with the highest-quality JPEG source available.
PNG uses lossless compression, which preserves all pixel data. JPEG achieves smaller sizes by discarding visual information. A 200 KB JPEG photo may become 800 KB as a PNG. This is normal and expected — the tradeoff is that the PNG won't degrade further with editing.
Use the Compression Level setting (1-10) — higher values produce smaller files with no quality loss. For graphics and icons, use Color Reduction under Colors to limit the palette to 128 or 256 colors. For photos where file size matters more than lossless quality, consider keeping the JPEG format instead.
Converting JPEG to PNG does not automatically add transparency — the image will have the same opaque background as the original. However, the PNG format now supports transparency, so you can add transparent areas using an image editor after conversion.
Yes. This tool accepts JPG, JPEG, and JFIF files — all three are variations of the same JPEG format. JFIF (JPEG File Interchange Format) is an older wrapper that some systems still use. The conversion process is identical regardless of which extension your source file has.