Convert Image
Convert images between PNG, JPG, and WebP formats
Select an image to convert
Convert images between PNG, JPG, and WebP formats
Select an image to convert
The Online Image Converter is a free browser-based utility that transforms images between PNG, JPG, and WebP formats instantly. Need to turn a transparent PNG into a lightweight WebP for your website, or convert a WebP screenshot to a universally compatible JPG? This tool handles every combination with a single click. All processing is performed locally using the HTML5 Canvas API, which means your files never leave your device. There is no account required, no watermark, and no cap on how many images you can convert — making it a fast, private, and completely free solution for everyday format-switching tasks.
Different platforms and workflows demand different image formats. Here are some common scenarios where conversion is essential:
When you select an image, the browser reads it via the FileReader API and renders it onto an off-screen HTML5 Canvas element. You then choose the target format — PNG, JPG, or WebP — and the Canvas API re-encodes the pixel data into that format using its built-in toBlob method. For JPG and WebP, you can also adjust the quality level to balance file size against visual fidelity. If you convert to JPG, the tool composites transparent regions onto a white background so the output looks clean. The entire pipeline runs inside your browser with zero server involvement: no uploads, no data collection, and no third-party scripts. Conversion is nearly instantaneous and even works offline once the page is loaded.