What is this image converter?
A free, browser-based tool that converts images between PNG, JPG, and WebP in batch. Upload one or many images, choose the output format, set a quality level for lossy formats, and download everything as a single ZIP — at the original resolution. All processing happens locally in your browser, so your images are never uploaded.
How to use it
- Upload one or more images on the left (drag & drop or click).
- Choose the output format: PNG, JPG, or WebP.
- For JPG or WebP, adjust the quality slider to balance size and quality.
- Press “Convert & download zip” to get every image in the new format.
Common use cases
- Converting PNGs to WebP to make a landing page load faster.
- Turning a WebP back into JPG for a tool that doesn't accept WebP.
- Flattening transparent PNGs to JPG with a white background.