Image Converter
Convert images between PNG, JPG, WebP and BMP in bulk, with a background colour for transparent areas.
About Image Converter
This image converter changes photos between PNG, JPG, WebP and BMP. Drop one or many images, pick the format you need and download each file or all of them as a ZIP. It handles the common jobs quickly: PNG to JPG for smaller files, JPG to PNG for editing, and WebP to JPG when a site or app will not accept WebP.
You can set the quality for JPG and WebP, and choose a background colour to fill transparent areas when converting to JPG or BMP. Conversion happens in your browser, so images are never uploaded, and it is free with no sign-up or watermark.
How to use Image Converter
- Drop one or more images or try the samples.
- Pick the format you need.
- Set quality and a background colour for transparency (JPG/BMP).
- Download files one by one or as a ZIP.
Frequently asked questions
Why did my transparent PNG get a white background?
JPG and BMP cannot store transparency, so transparent pixels are filled with the background colour you choose. Use PNG or WebP to keep transparency.
Can I make an ICO file?
Yes — use the Favicon Generator, which builds a real multi-size .ico.
Can I convert iPhone HEIC photos?
Only if your browser can open HEIC (Safari on Mac/iPhone can). Chrome and Firefox cannot decode HEIC yet.
How do I convert WebP to JPG?
Drop the WebP image, choose JPG as the output format, set the quality and download the converted file.
Does converting PNG to JPG reduce file size?
Usually yes, especially for photos, because JPG uses lossy compression. For logos and screenshots with flat colours, PNG may stay smaller and sharper.
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