Image Converter

This free online image converter switches a photo between JPG, PNG and WebP without installing any software — and unlike most converters, it shows you the resulting file size for all three formats side by side, live, before you download anything. That matters because the best format isn't the same for every image: JPG produces the smallest files for ordinary photos but has no transparency support, PNG is lossless and keeps transparency but produces the largest files, and WebP is a modern format that usually beats JPG on file size while still supporting transparency — though it's the newest of the three and occasionally still unsupported by an older tool downstream. Rather than guessing or converting three separate times to compare, you see all three sizes update together as you adjust quality, with a "Smallest" badge marking the winner.

Picking the right format is one of the simplest, highest-leverage things you can do for a faster website: image weight is consistently one of the biggest contributors to slow page loads, and search engines factor load speed into ranking through Core Web Vitals. Converting a PNG screenshot or graphic to WebP, or a bloated camera JPG to a well-compressed WebP, routinely cuts file size in half or more with no visible quality loss — multiplied across every image on a page or in a product catalog, that adds up to real, measurable speed gains.

The tool also handles the one detail that trips people up when converting to JPG: since JPG has no transparency channel, converting a transparent PNG or WebP straight to JPG normally leaves ugly black or white patches where the transparency was. A background-color picker lets you choose exactly what fills those transparent areas — your brand color, plain white, or anything else — so the exported JPG looks intentional instead of broken.

Every conversion happens locally in your browser using the HTML canvas API. Nothing is ever uploaded to a server, so it's instant, works identically on a phone or a laptop, and is completely private — there's no queue and no server-side copy of your image to worry about, which matters for anything you haven't published yet.