Image Format Converter
Convert between JPG, PNG, and WebP right in your browser. Nothing is uploaded - your image never leaves your device.
Click to choose an image, or drag and drop it here
Why image formats differ
JPG, PNG, and WebP each serve a different purpose, and understanding the difference helps you pick the right one for a given situation. JPG uses lossy compression optimized for photographs with smooth color gradients, typically producing the smallest files for photo content but discarding some fine detail in the process. PNG is lossless, meaning it preserves every pixel exactly, which makes it the better choice for graphics, logos, screenshots, and any image containing sharp text or transparency. WebP is a newer format developed specifically for the web that generally achieves smaller file sizes than both JPG and PNG at comparable visual quality, though it isn't universally supported by every older piece of software.
This tool loads your image onto an HTML canvas element and re-exports it in whichever format you select, entirely within your browser using JavaScript. Because nothing is uploaded to an external server for conversion, the process is instant and your image never leaves your device.
When to use each format
Use JPG for photographs you're sharing or uploading where transparency isn't needed. Use PNG when you need transparency (like a logo that needs to sit on different colored backgrounds) or when the image contains sharp lines and text that shouldn't get blurry from compression. Use WebP when you're optimizing a website for speed and want the smallest possible file size while maintaining good visual quality, and you've confirmed your audience's browsers support it (which the vast majority of modern browsers do).
What happens to transparency during conversion
PNG and WebP both support transparent backgrounds, but JPG does not. When converting a transparent PNG to JPG, this tool fills the transparent areas with a white background rather than leaving them black or corrupted, which is the most common expectation when flattening a transparent image for JPG.
Why convert PNG to JPG?
JPG files are usually much smaller than PNG for photos, since PNG is lossless and better suited to graphics or images needing transparency rather than photographic content with smooth gradients.
Why convert to WebP?
WebP typically produces smaller files than both JPG and PNG at similar visual quality, which is why many modern websites use it to speed up page loads and reduce bandwidth use for visitors.
Will I lose quality converting between formats?
Converting from a lossless format (PNG) to a lossy one (JPG) can introduce some compression artifacts. Converting from a lossy format back to a lossless one won't recover detail that was already lost in the original file — it simply preserves whatever detail currently exists.
Which format should I use for a logo?
PNG is usually the right choice for logos, since it preserves sharp edges and text without compression artifacts, and supports a transparent background so the logo can sit on any color.
Note: converting a JPG to PNG will not restore transparency or detail that was already lost when the image was originally saved as JPG.