How to Convert JPG to PNG
JPG to PNG conversion is one of the most common image format conversions — and one of the most misunderstood. Many people expect that converting a JPG to PNG will somehow improve the image quality, but that's not how it works. What it does give you is a lossless container for your image: no further quality degradation on re-saves, plus the ability to layer it over other content with transparency tools. imageconvert.co performs this conversion instantly in your browser.
JPG vs PNG: What's the Difference?
| Feature | JPG | PNG |
|---|---|---|
| Compression | Lossy — quality degrades with each re-save | Lossless — pixel-perfect preservation |
| File size | Small (optimized for photos) | Larger — especially for photographic content |
| Transparency | Not supported | Full alpha channel support |
| Re-save quality | Degrades each time (generation loss) | Identical quality on every save |
| Best use case | Photographs, web images where size matters | Graphics, design work, images needing transparency |
How to Convert JPG to PNG
- Drop your JPG files onto the converter above, or click to browse and select files
- Files are decoded and re-encoded as lossless PNG — no quality slider needed since PNG is lossless
- Download your PNG files individually or grab them all as a ZIP
Frequently Asked Questions
Does converting JPG to PNG improve image quality?
No. Converting a JPG to PNG preserves the image exactly as it is, but it cannot restore data that was already discarded by JPG compression. Think of it like photocopying a photocopy — the copy is accurate, but the original detail is gone. What PNG does prevent is any further quality loss when you save or edit the file again.
Why are my PNG files so much bigger than the JPGs?
PNG uses lossless compression, which preserves every pixel but produces much larger files than JPG's lossy approach. A 500KB JPG photo might become a 2-4MB PNG. This is expected — you're trading file size for lossless fidelity and the ability to re-edit without further quality loss.
When should I convert JPG to PNG?
Convert to PNG when you plan to edit the image in a design tool (Photoshop, Figma, Canva), need to layer it over backgrounds, or want to avoid further quality loss from repeated saves. If you just need to share or view the image, JPG is usually the better choice for its smaller size.
Can I add transparency to a JPG after converting to PNG?
Converting to PNG gives you a format that supports transparency, but the transparent background isn't added automatically. You'll need an image editor to remove the background after conversion. The PNG format simply makes transparency possible — a JPG converted to PNG still has its original solid background.
Is this conversion reversible?
You can convert a PNG back to JPG at any time, but each JPG conversion introduces lossy compression. The round trip (JPG to PNG to JPG) will produce a file similar in size to the original JPG but with slightly different compression artifacts.