How to Convert Between PNG, JPEG, and WebP Image Formats

Different platforms demand different image formats. Your designer sends a PNG, but your website needs WebP for performance. Your camera outputs JPEG, but you need PNG for a presentation with transparent backgrounds. An image format converter handles these transformations instantly.

Which format to use when

PNG: Lossless compression, supports transparency. Best for logos, icons, screenshots, and images with text. Larger file size than JPEG or WebP. JPEG: Lossy compression, no transparency. Best for photographs and complex images where small quality loss is acceptable. Much smaller than PNG. WebP: Modern format supporting both lossy and lossless compression with transparency. 25-35 percent smaller than JPEG/PNG at equivalent quality. Supported by all modern browsers.

Using the converter

The ToolStand Image Format Converter processes images in your browser using Canvas API. Select an image, choose the output format, and download the converted file. For multiple images, the batch mode processes them sequentially. The quality slider controls JPEG and WebP compression — higher quality means larger files.

Pairing with the image resizer

For a complete image optimization workflow: first convert to the desired format, then resize to target dimensions. Converting first, then resizing yields better quality than resizing first, then converting, because the conversion step has more source data to work with.

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