ToolocoTooloco

JPG to PNG Converter

Convert JPG images to PNG format online for free. Keeps transparency support. No quality loss.

Drop your image here, or click to browse

JPEG, .JPG, .JPEG supported

About this tool

Converting JPG to PNG is one of the most common image tasks on the web. PNG uses lossless compression, meaning every pixel is preserved exactly — unlike JPG, which discards detail to shrink file size. This makes PNG the right choice when you need crisp edges, text overlays, logos, or images with transparent backgrounds. This tool performs the conversion entirely inside your browser using the Canvas API, so your image never leaves your device.

  • ✅ Free to use, no sign-up required
  • ✅ Files never leave your device
  • ✅ Instant conversion
  • ✅ Works on any browser and device

How it works

Your JPG file is loaded into an HTML Canvas element at its original resolution. The canvas then exports the pixel data as a PNG file using lossless compression. Because PNG supports an alpha (transparency) channel and JPG does not, any white or solid-color background in the original JPG is preserved as an opaque background in the output.

Frequently Asked Questions

Does converting JPG to PNG improve image quality?
Not exactly — the JPG has already been compressed and some detail may have been lost at the time it was saved. However, converting to PNG ensures no further quality loss occurs during future edits or re-saves, because PNG is lossless.
Will the PNG file be larger than the JPG?
Yes, almost always. PNG files are typically larger than JPG because they use lossless compression. If file size is important, consider keeping the JPG format or using WebP which offers similar lossless compression at smaller sizes.
Can I get a transparent background from my JPG?
No — JPG does not support transparency, so there is no transparency data to extract. If you need a transparent background, you will need to remove the background manually with an editing tool after conversion.
Is there a file size limit?
There is no enforced file size limit. Since all processing happens in your browser, the practical limit is determined by your device's available memory — most modern devices handle images up to 30–50 MB without issue.

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