Free Image Converter — PNG, JPG, WebP
Convert an image to PNG, JPG, or WebP. Free for up to 10 images per day. Images are processed in memory and never stored.
Lossy vs. lossless: the real difference between these formats
JPG is "lossy" — it discards some image information permanently, using compression tuned around how photographs actually look (gradual gradients, natural noise) to shrink file size dramatically at a quality loss the eye usually can't detect. That same trick works against JPG when the content isn't a photo: sharp text, flat logo colors, and hard edges compress poorly and can pick up visible artifacts, which is exactly why PNG — a "lossless" format that reconstructs the image pixel-for-pixel — is the better choice for screenshots, logos, and diagrams, at the cost of a larger file. WebP is newer and more flexible: it supports both a lossy mode (smaller than JPG at equal visual quality) and full transparency, which is why it's the default recommendation here for general use.
Frequently Asked Questions
Which format should I choose?
WebP gives the smallest files at equal quality and every modern browser supports it. Use JPG when the image must open in older software, and PNG when you need lossless quality or transparency.
What happens to transparency when converting to JPG?
JPG does not support transparency, so transparent areas are filled with white. Convert to PNG or WebP instead if you need the transparency preserved.
What input formats are accepted?
PNG, JPG, WebP, GIF, BMP, and TIFF, up to 20 MB. Animated GIFs convert as their first frame.
Why do screenshots and logos look worse as JPG than as PNG?
JPG's compression is tuned for photographic content — gradual gradients and natural noise — and tends to introduce visible blurring or blocky artifacts around the sharp edges and flat colors typical of screenshots, text, and logos. PNG's lossless compression avoids that entirely, at the cost of a larger file.
Does converting to WebP here produce a lossless file?
No — this converter always applies the quality slider when producing WebP output, the same as it does for JPG. If you need a pixel-perfect, fully lossless result, choose PNG instead.
Is my image stored anywhere?
No. The image is converted in server memory and streamed straight back as a download. Nothing is written to disk or retained.