Convert Images Online for Free – JPG, PNG & WebP
Convert images between JPG, PNG and WEBP directly in your browser.
Clear interfaceSimple steps and a direct result
Fast performanceBuilt for mobile and desktop
Privacy firstProcessing stays on your device
Convert Images Online for Free – JPG, PNG & WebP
Convert Image Format Between JPG, PNG and WebP
Nujiz Image Convert re-encodes an image into the output format you select directly in your browser. The source is drawn to Canvas and exported in the new format while keeping the original pixel dimensions.
Image formats have different properties. PNG is useful when transparency is required, while JPEG has no alpha channel. When JPEG is selected, the tool paints a white background first so transparent pixels do not become an unwanted dark background.
How to Use This Tool
- Choose the image you want to convert.
- Select an available output format.
- Start the conversion.
- Review the result, especially transparency when converting to JPEG.
- Download the image in its new format.
Important Notes for Better Results
Format conversion does not increase image resolution, restore missing detail, crop the image or change its dimensions. Keep the source file if you may need to create other formats later.
Convert Images Online Without Installing Software
Nujiz lets you change image formats directly in your browser. Select an available output format and generate a new image file for websites, documents, or everyday sharing.
Convert PNG to JPG
JPG is useful for photographs and images that do not require transparency. When converting a transparent PNG to JPG, the tool uses a white background because JPEG does not support transparent pixels.
Convert JPG to PNG
PNG supports transparency and is often used for graphics. However, converting a JPG file to PNG does not restore details previously lost through JPEG compression or automatically create transparency.
Convert Images to WebP
WebP is widely used on websites and can provide efficient compression. The resulting file size depends on the original image and the encoding settings.
Image Conversion vs Image Compression
Image conversion changes the file format, while compression focuses on reducing file size. If your main goal is a smaller file, try the online image compression tool.
Does Converting an Image Affect Quality?
Output format and encoding can affect file size and visual quality. Converting an image cannot increase its original resolution or recover lost details. Keep the original file before experimenting with multiple formats.
Frequently Asked Questions
Does format conversion change image dimensions?
No. The image is re-encoded while retaining its original pixel dimensions.
What happens to transparency when converting to JPEG?
JPEG does not support transparency, so the tool places a white background behind transparent areas.
Does converting an image improve its quality?
No. Conversion changes the file format and does not create additional image detail.
Can I convert an image to PNG?
Yes, when PNG is selected from the available output formats.
Is conversion performed in the browser?
Yes. The image is redrawn and encoded locally in your browser.