JPG to PNG Converter
Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.
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Drop multiple images to combine them into one PDF, Word document, or PowerPoint presentation — or convert each image separately.
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Convert JPG to PNG online
Convert JPG to PNG when an app or workflow requires PNG output, or when you want a lossless copy before editing and re-exporting.
When should you convert JPG to PNG?
- Prepare images for design tools that prefer PNG
- Avoid another round of JPG compression before editing
- Use a format that supports transparent output in later edits
- Meet upload requirements that specifically ask for PNG
Before you convert
No lost detail comes back
A PNG copy will not restore detail already removed by JPG compression.
File size may grow
PNG is often larger than JPG for photographs, especially high-resolution camera images.
What happens to your file
PNG output is lossless, then run through a size optimizer: pngquant is used when it is available on the worker, with Pillow's own quantizer as the fallback. Drop the quality setting below 80 (or switch on Optimize) and the palette is reduced up front instead.
Settings this conversion runs with
| Engine | Pillow (Python Imaging Library) |
|---|---|
| Compression | Lossless |
| Optimizer | pngquant when available, Pillow quantize as fallback |
What changes
- PNG is lossless, but it cannot undo JPG. The detail your JPG already threw away stays gone — and because PNG does not compress photographs well, the file usually gets bigger, not better.
About JPG and PNG files
JPG image
Strengths
- small file size
- works almost everywhere
- great for photos
Limitations
- no transparency
- lossy compression
- not ideal for sharp graphics
PNG image
Strengths
- transparent backgrounds
- sharp text and lines
- lossless quality
Limitations
- larger files than JPG for photos
- no animation
JPG vs PNG
| Format | JPG | PNG |
|---|---|---|
| Compression | Lossy | Lossless |
| Transparency | No | Yes |
| Best for | photographs, web and email images | screenshots, logos and icons |
Guides for this conversion
- Why your PNG turned white: transparency, explained
Which image formats keep a transparent background, which ones paint over it, and exactly what happens to those pixels during a conversion.
Related tools
Frequently asked questions
- What happens to the image when you convert JPG to PNG?
- PNG output is lossless, then run through a size optimizer: pngquant is used when it is available on the worker, with Pillow's own quantizer as the fallback. Drop the quality setting below 80 (or switch on Optimize) and the palette is reduced up front instead.
- What should you know before converting JPG to PNG?
- PNG is lossless, but it cannot undo JPG. The detail your JPG already threw away stays gone — and because PNG does not compress photographs well, the file usually gets bigger, not better.
- Is this JPG to PNG converter free?
- Yes. You can convert JPG to PNG online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. Use the converter from your browser without installing software or creating an account. Files are uploaded to our servers for processing.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.
- Can I convert multiple JPG files at once?
- Yes. Drop several files to convert them in a batch and download the results as a single ZIP.