Image tool

Image Format Converter

Convert images between PNG, JPEG, and WebP entirely in the browser.

Practical guide

How to use Image Format Converter

Image Format Converter changes a browser-readable image into PNG, JPEG, or WebP. It helps meet upload requirements, preserve transparency where supported, or choose a format better suited to a photograph or interface graphic.

Step by step

  1. Choose the source image.
  2. Select PNG, JPEG, or WebP and adjust quality for lossy output.
  3. Convert, inspect transparency and visual quality, then download the new file.

Example

InputTransparent PNG converted to JPEG
ResultJPEG with transparent areas filled white

How it works

The browser decodes the source pixels, draws them to Canvas, and uses Canvas encoding for the chosen format. JPEG has no alpha channel, so transparency is filled with white.

Important limitations

  • Animation and original metadata are not retained.
  • Converting a lossy image to PNG does not restore detail or guarantee a smaller file.

Frequently asked questions

Which output supports transparency?

PNG and WebP can preserve transparency. JPEG cannot.

Why is the converted file larger?

Format efficiency depends on image content, dimensions, quality, and whether lossless storage is used.

Color Spectrum Extract dominant colors, inspect pixels, and export palettes from an image. Image Compressor Reduce image file size locally with an adjustable quality setting. Image Resizer Resize images to exact dimensions while optionally preserving aspect ratio.