What image formats are supported for conversion?
We support comprehensive format conversion including: **Input formats**: JPEG, PNG, WebP, GIF, BMP, TIFF, AVIF, and HEIC (where browser supported). **Output formats**: JPEG, PNG, WebP, GIF, BMP with optimized conversion algorithms. Each conversion preserves maximum quality while optimizing for the target format's strengths. For example, PNG to JPEG conversion handles transparency by adding customizable background colors.
Which format should I choose for different purposes?
Format selection depends on your specific needs: 1) **JPEG**: Best for photographs and complex images, excellent compression but no transparency support, 2) **PNG**: Ideal for graphics, logos, screenshots with transparency needs, lossless compression, 3) **WebP**: Modern format with superior compression, perfect for web use, supports both lossy and lossless modes, 4) **GIF**: Best for simple animations and graphics with limited colors, 5) **BMP**: Uncompressed format for maximum quality but large file sizes. Our tool provides smart recommendations based on your image characteristics.
Will converting between formats affect image quality?
Quality impact varies by conversion type: 1) **Lossless to lossless** (PNG to BMP): No quality loss, only file size changes, 2) **Lossy to lossless** (JPEG to PNG): No additional quality loss, preserves existing quality, 3) **Lossless to lossy** (PNG to JPEG): Some quality reduction possible, controllable via quality settings, 4) **Lossy to lossy** (JPEG to WebP): Minimal additional loss with modern algorithms. Our tool shows real-time quality comparison and file size changes, allowing you to find the perfect balance for your needs.
Can I convert multiple images at once?
Yes! Our batch conversion feature supports: 1) **Multiple file upload**: Up to 50 images simultaneously, 2) **Uniform settings**: Apply same format and quality settings to all images, 3) **Individual preview**: Review each converted image before download, 4) **Flexible download**: Download individually or as a complete ZIP archive, 5) **Progress tracking**: Real-time conversion progress with success/error status for each file, 6) **Format mixing**: Different input formats can be converted to the same output format in one batch.
Are my images stored on your servers?
Absolutely not. All image format conversion happens entirely in your browser using JavaScript and WebAssembly: 1) **Local processing**: Images are processed directly in browser memory, 2) **No server uploads**: Your files never leave your device at any point, 3) **Offline capability**: Works completely offline once the page loads, 4) **Immediate deletion**: Processed images are removed from memory when you navigate away, 5) **Zero data transmission**: No image data is ever sent to our servers. This ensures complete privacy and security for your images.
How do I handle transparency when converting from PNG to JPEG?
Since JPEG doesn't support transparency, our tool provides several options: 1) **Custom background color**: Choose any background color to replace transparent areas, 2) **White background**: Default option, most common for web use, 3) **Black background**: Useful for dark-themed designs, 4) **Automatic detection**: Smart background color selection based on image content, 5) **Preview before conversion**: See exactly how transparency will be handled before processing. The tool automatically detects transparent areas and applies your chosen background seamlessly.
What's the difference between WebP and other formats?
WebP is a modern format with significant advantages: 1) **Superior compression**: 25-50% smaller files than equivalent JPEG quality, 2) **Transparency support**: Unlike JPEG, supports alpha channel like PNG, 3) **Animation support**: Can replace GIF with better compression and quality, 4) **Lossless and lossy**: Flexible compression options for different needs, 5) **Browser support**: Excellent modern browser support (95%+ global coverage). However, consider fallback options for older systems. Our tool helps you decide when WebP is the best choice for your specific use case.
Why are my converted file sizes different than expected?
File size variations occur due to several factors: 1) **Compression differences**: Each format uses different compression algorithms with varying efficiency, 2) **Quality settings**: Lower quality settings significantly reduce file size but may affect visual quality, 3) **Image content**: Photos with lots of detail compress differently than simple graphics, 4) **Color depth**: Images with many colors produce larger files than those with limited palettes, 5) **Metadata handling**: Some formats include more metadata than others. Our tool provides real-time file size predictions and explanations to help you understand and control these variations.
