Image Format Converter
Convert images between JPG, PNG, WebP, BMP, and ICO formats instantly
Supported Formats
Best for photographs with many colors
Best for graphics, logos, and transparency
Modern format with superior compression
Uncompressed bitmap format
Icon format (image converted to 32x32)
What is Image Format Conversion?
Image format conversion is the process of transforming an image from one file format to another while preserving the visual content. Different formats have different characteristics, compression methods, and use cases.
Our converter uses browser-native APIs to ensure high-quality conversions while maintaining maximum compatibility. Whether you need to convert for web optimization, compatibility requirements, or specific platform needs, this tool handles the conversion seamlessly in your browser.
When to Convert Image Formats?
Web Optimization
Convert to WebP for modern browsers to achieve smaller file sizes. Convert PNG to JPG for photographs to reduce size without transparency.
Compatibility Requirements
Some platforms or applications only accept specific formats. Convert to ensure your images work everywhere.
Adding or Removing Transparency
Convert JPG to PNG to add transparency support, or PNG to JPG to flatten transparency with a background color.
Creating Favicons
Convert any image to ICO format for website favicons and application icons.
Image Format Comparison
JPEG / JPG
Best for: Photographs and images with gradients and many colors.
Uses lossy compression for small file sizes. No transparency support. Widely compatible with all devices and platforms.
PNG
Best for: Logos, icons, graphics, and images requiring transparency.
Uses lossless compression. Supports full transparency. Larger file sizes than JPEG but maintains perfect quality.
WebP
Best for: Modern web applications requiring both quality and small size.
Modern format with superior compression. Supports both lossy and lossless compression plus transparency. 25-35% smaller than JPEG/PNG.
BMP
Best for: Legacy applications or when uncompressed format is required.
Uncompressed bitmap format. Very large file sizes. Perfect quality with no compression artifacts.
ICO
Best for: Website favicons and Windows application icons.
Icon format supporting multiple sizes. Commonly used for favicons. Typically 16×16, 32×32, or 48×48 pixels.
Frequently Asked Questions
Does format conversion reduce quality?
It depends on the formats and settings. Converting from PNG to PNG or lossless formats maintains quality. Converting to JPEG uses lossy compression, which may reduce quality slightly but creates smaller files. Our tool defaults to high quality settings (95%) to minimize loss.
What happens to transparency when converting to JPEG?
JPEG doesn't support transparency. When converting from a transparent format like PNG, you can choose a background color to replace transparent areas. The default is white, but you can select any color.
Is my data safe and private?
Absolutely! All conversions happen entirely in your browser using JavaScript and HTML5 Canvas. Your images never leave your device or get uploaded to any server, ensuring complete privacy and security.
Which format should I use for my website?
For modern websites, use WebP for the best compression and quality balance. For broader compatibility, use JPEG for photos and PNG for graphics with transparency. Consider serving WebP with JPEG/PNG fallbacks for maximum compatibility.