Image Converter

How to convert images

1. Choose the target format with the tabs: JPG, PNG or WebP. A short note under the tabs explains what each format is good for.
2. If your pictures have transparent areas, choose what happens to them: keep them transparent (JPG turns them white), or fill them with white, black or any colour.
3. For JPG and WebP set the quality. 90% is a good default; lower values make smaller files.
4. Drop your images on the box, or paste a screenshot. Each picture is converted at once and shows its new size. Download one file, or all of them as a ZIP.

The conversion runs in your browser, so the pictures are never uploaded. You can mix formats in one batch: PNG, JPG, WebP, GIF, BMP and SVG files can all be converted together. Changing a setting converts everything again immediately, always starting from your originals.

Which format should I choose?

• JPG is for photographs. Files are small and every device, website and form accepts them, but there is no transparency and each save loses a little detail.
• PNG is lossless and supports transparency. It is the right choice for logos, icons, screenshots and anything with sharp edges or text, but photographs become large.
• WebP combines both: small files like JPG and transparency like PNG, typically 25–35% smaller than JPG. All current browsers support it, but some older programs and upload forms do not.

Transparency and backgrounds

PNG and WebP can store transparent pixels; JPG cannot. When you convert a transparent PNG to JPG, the transparent areas must become some colour. The tool fills them with white by default, which suits most documents and web pages. If the picture will sit on a dark background, choose black or pick a colour that matches. The preview shows a checkerboard behind the picture, so you can see where transparency remains.

Worked example

You have a company logo as a 900 × 300 pixel PNG of 85 KB with a transparent background, and a job application form accepts only JPG. Choose the JPG tab and keep the background on white: the result is a 900 × 300 JPG with a clean white background, typically much smaller than the PNG for a photographic logo but similar for flat colours. Going the other way, a 2.4 MB WebP photo downloaded from a website can be converted to JPG at 90% for a program that cannot open WebP; expect a JPG of similar quality whose file is usually somewhat larger than the WebP.

SVG to PNG

SVG files describe shapes instead of pixels, so they can be drawn at any size. When you add an SVG, a scale option appears: 1× uses the size written in the file, 2× to 4× render it larger for crisp results on high-resolution screens or in print. If the SVG has no size of its own, the tool uses its view box. Text in an SVG uses the fonts of your device; for a logo that must look identical everywhere, convert the text to outlines in your design program first.

Tips

• Avoid converting back and forth. JPG to PNG and back again adds no quality but can add file size. Keep the original.
• Animated GIFs are converted from their first frame only.
• iPhone HEIC photos cannot be opened by most browsers; set the camera to Most Compatible or use a HEIC converter first.
• Check the quality. Zoom in on text and edges after converting to JPG or WebP, and raise the quality if you see blocky areas.

Frequently asked questions