Why convert JPG to PNG?
PNG is lossless, so further edits do not add new JPEG artefacts. Some design tools and forms also ask for PNG specifically.
Convert · Browser-first processing
Convert JPG to PNG Online
Choose a JPG image and download it as PNG. Conversion happens in this browser.
- Read and process the selected filethis device
- Create the downloadable resultthis device
JPG to PNG ConverterProcessed on this device
or drop files here
Selected files stay in this browser tab.
Preview and result
Local browser processingSelect a supported file or enter the requested values, then run the tool.
This browser path does not upload the selected source to ImgNimble. Closing or refreshing clears the selected files and generated result from the page.
Common questions
How this tool behaves
Is the conversion lossless?
Yes. PNG stores every pixel exactly, so the PNG matches the decoded source. It will usually be larger than the JPG.
Can I resize at the same time?
Yes. Set a maximum width and the image is scaled down proportionally during conversion. Leave it at 0 to keep the original size.
What about transparency?
JPG sources have no transparency, so nothing changes there.
Does my browser support this format?
Yes. Every current desktop and mobile browser can read and write these formats.
Does the file leave my device?
No. The image is decoded and re-encoded by your browser. ImgNimble does not receive the source file on this page, and refreshing clears both the input and the generated result.
Practical checks
Before you use the output
Verify the result
Keep the original, inspect the generated output and confirm the current destination requirements before replacing or submitting a file.