Image Conversion
Convert JPG to PNG
Turn JPEG photographs into PNG files that can be edited and re-saved without losing any further detail. The converted file is a pixel-exact copy of the JPEG as it exists today, stored in a lossless container.
This is the conversion to choose before a round of editing, or when a tool or platform simply refuses JPEG input.
Drag images here
Batch conversion supported · files never leave your device
How to use this tool
- 1Add one or more .jpg or .jpeg files.
- 2PNG is already selected as the output format.
- 3Press Convert — encoding happens locally in your browser.
- 4Download each PNG, or the full batch as a ZIP archive.
What changes when you convert JPG to PNG
JPEG stores an approximation of an image. It groups pixels into blocks, discards colour information the eye is least sensitive to, and reconstructs the picture on decode. PNG works completely differently: it compresses the exact pixel values so decoding always returns the original data. Converting from JPG to PNG therefore freezes the image in its current state. Nothing is recovered, but nothing more will be lost.
File size expectations
| Content | JPG size | Typical PNG size |
|---|---|---|
| Detailed landscape photo | 500 KB | 3–5 MB |
| Flat graphic saved as JPG | 120 KB | 60–200 KB |
| Screenshot saved as JPG | 250 KB | 150–400 KB |
Images with large flat colour areas — diagrams, screenshots, UI captures — often shrink when converted to PNG, because lossless compression handles repeated colours extremely well. Photographs always grow.
Practical examples
- A logo was only ever supplied as a JPG. Converting to PNG gives a stable master so repeated edits don't accumulate JPEG artifacts.
- A print-on-demand service accepts PNG only, so a customer's JPEG artwork must be converted before upload.
- A screenshot with text was accidentally saved as JPG; PNG stops the text edges degrading any further.
Before you publish the PNG
For anything destined for a web page, PNG is rarely the lightest option. If the goal is a smaller file rather than lossless editing, convert to WebP instead, or run the original through the compressor. To go the other way later, use PNG to JPG.
Frequently Asked Questions
Will a JPG become sharper after converting to PNG?
No. PNG stores exactly what the JPEG already contains, including any compression artifacts that were baked in when the JPEG was created. Conversion prevents further loss but cannot undo previous loss.
Why is the PNG so much larger than the JPG?
PNG is lossless, so photographic detail that JPEG discarded is now described byte by byte. A 400 KB photo commonly becomes 2–4 MB as a PNG. That is expected, not an error.
Does the PNG gain transparency?
The file format supports an alpha channel, but a JPEG has no transparency to carry over, so every pixel stays fully opaque. You would need an editor to remove a background.
When is JPG to PNG actually the right choice?
When the image will be edited repeatedly, placed in a document or app that requires PNG, or used as a source that must not degrade further with each save.