OnlineFreeToolBoxImage Tools
Image Format Converter
Convert an image between PNG, JPG and WebP and download it in the new format, with an Original vs Converted preview.
or drop an image here
This tool only changes the format — it does not compress. The new size may be larger or smaller than the original; that is normal when changing format (PNG files are usually larger than JPG or WebP for photos).
Which format should you use?
PNG keeps transparency and sharp edges, making it the right choice for logos, icons, and graphics with text. JPG produces smaller files for photos but doesn't support transparency and loses a small amount of detail. WebP is a newer format that generally gives the smallest file size at similar quality and supports transparency, making it a strong default for websites when browser support isn't a concern.
How this converter works
Your image is loaded into an in-browser canvas and re-exported in the format you select, entirely on your device. Converting to JPG will fill any transparent areas with white, since JPG doesn't support transparency.
Frequently asked questions
Why would I convert a PNG to JPG?
JPG files are typically much smaller than PNG for photographic images, which speeds up page loading and reduces storage or email attachment size. The trade-off is losing transparency support.
Why would I convert to WebP?
WebP often produces the smallest file size of the three formats at a similar visual quality, and unlike JPG it still supports transparency. The main reason not to use it is if you need compatibility with very old software that doesn't recognize the format.
What happens to transparent areas when converting to JPG?
Since JPG doesn't support transparency, any transparent areas are automatically filled with a white background during conversion so the image still displays correctly.
Does converting formats reduce image quality?
Converting to PNG is lossless and won't reduce quality. JPG and WebP are lossy formats by nature, so some detail can be lost on conversion, but this tool always exports at full quality — it adds no extra compression on top.
Frequently asked questions
Will converting to JPG keep transparency?
No. JPG has no transparency, so transparent areas become filled on conversion. Use PNG or WebP to keep transparency.
Which format is best for a website logo?
PNG is usually best for a logo, because it keeps sharp edges and supports transparency. Use JPG for photographs, where a smaller file matters more than perfect edges, and WebP when the site supports it for the smallest files.
Is WebP better than JPG?
For photos on the web, WebP usually gives a smaller file at similar quality. Use JPG when a tool or platform does not support WebP.
Will the image lose quality?
JPG and WebP are lossy formats, so some detail is lost on conversion. PNG is lossless. Convert from the original image where possible, rather than converting the same file repeatedly.
What size will the converted file be?
It depends on the image and the format. The processed preview shows the new size, so you can see whether the conversion saved space before downloading.