Convert Images Online — JPG, PNG & WebP

Converting an image here is a four-step loop: drop the file, pick a target format, set the transparency and quality options, and download. The tool accepts JPG, PNG, and WebP input up to 50 MB and re-encodes the image inside your browser with the Canvas API, so nothing uploads and the converted file is ready the moment you click Convert. Because the encode happens locally, the page can show a live before-and-after comparison, and you can switch the target format as many times as you like at no cost. To make it concrete: a 2.1 MB PNG screenshot converted to WebP typically lands around 300 KB, a reduction of roughly 85%, with the transparent background intact.

1. 1Drop or select an image. JPG, PNG, and WebP files up to 50 MB are accepted.
2. 2Pick the target format: JPG, PNG, or WebP.
3. 3If the target is JPG, decide whether to fill transparent areas with white. The switch is on by default.
4. 4Set the quality for JPG or WebP output, then download. PNG output is lossless, so its quality slider is hidden.

• JPG is best for photos and gradients. Files are small and every viewer opens them, but there is no transparency and the quality is lossy.
• PNG is lossless and supports full transparency, which makes it ideal for logos, screenshots, and graphics with sharp edges, at the cost of larger files.
• WebP compresses better than JPG while supporting transparency, and every current browser renders it, so it is usually the best choice for images served on the web.

When the source image has transparent pixels and the target is JPG, the transparency cannot be stored. This tool fills those transparent areas with white by default, and you can turn the fill off to keep the flat background as-is. Converting to PNG or WebP preserves the alpha channel completely, so a logo with a transparent background stays transparent from edge to edge. The fill switch only appears when the target is JPG and the source has an alpha channel; PNG and WebP targets have nothing to fill because the transparency is kept.

It depends on the target. Converting to JPG or WebP is lossy, so some detail is discarded, and that is what buys the smaller file; the quality slider controls how aggressive the discard is. Converting to PNG is lossless, so the pixels are stored exactly as they are, which is why a JPG to PNG conversion keeps every artifact already present but never adds new ones. In short, you cannot recover detail a lossy format already threw away, but you can avoid losing more.

The source format sets the starting point, but it does not limit the target: a JPG, a PNG, and a WebP can each convert to any of the three. The one thing the source controls is transparency. A JPG has no alpha channel to preserve, while a PNG or WebP may, which is why the transparency fill switch only appears when the target is JPG and the source has transparency. Everything else, such as the quality slider and the before/after preview, behaves the same regardless of what you bring in.

Conversion runs in your browser with the Canvas API, so no file is uploaded and no account is required. That matters when you are handling screenshots of internal tools, client assets, or personal documents that you would rather not send to a third-party server. It also keeps the tool free and instant: processing starts the moment the file is selected and a result is usually ready in under a second.