Image Format Converter

Convert images between PNG, JPG, and WebP formats online

Convert images between PNG, JPG, and WebP formats with adjustable quality settings. Free online image format converter with preview and size comparison.

What is Image Format Converter?

Image Format Converter is a free online tool that allows you to convert images between popular formats: PNG, JPG/JPEG, and WebP. Whether you need to convert PNG to JPG for smaller file sizes, JPG to WebP for modern web optimization, or any other combination, this tool makes it simple and fast.

All conversions happen directly in your browser - your images never leave your device, ensuring complete privacy and security.

Why Convert Image Formats?

Different image formats serve different purposes:

JPG/JPEG: Best for photographs and images with many colors. Smaller file size but doesn't support transparency. Ideal for web use when transparency isn't needed.
PNG: Best for graphics, logos, and images requiring transparency. Lossless compression means no quality loss, but larger file sizes.
WebP: Modern format developed by Google. Provides superior compression (smaller files) while maintaining quality. Supports both lossy and lossless compression, plus transparency. Recommended for modern websites.

Key Features

Multiple Formats: Convert between PNG, JPG, and WebP
Quality Control: Adjust quality for JPG and WebP (60-100%)
Side-by-Side Preview: Compare original and converted images
File Size Comparison: See exactly how much space you'll save
Privacy-First: All processing happens in your browser
No Upload Limits: Convert images up to 50MB
Instant Results: Fast conversion with no server delays

How to Use Image Format Converter?

Upload Image: Click or drag and drop your PNG, JPG, or WebP image (up to 50MB)
Select Output Format: Choose your desired output format:
- JPG/JPEG for photos and web use
- PNG for graphics with transparency
- WebP for optimal web performance
Adjust Quality (Optional): For JPG and WebP, use the advanced settings to adjust quality:
- Higher quality = Better image, larger file
- Lower quality = Smaller file, slight quality reduction
Convert: Click the "Convert" button to process your image
Preview & Download: Compare the original and converted images, then download your result

Format Conversion Tips

PNG to JPG

Use when you don't need transparency
Great for reducing file size of photos
Set quality to 85-90% for best balance
Note: Transparency will be replaced with white background

JPG to PNG

Use when you need to add transparency later
Necessary for graphics editing
File size will increase
No quality loss during conversion

Any Format to WebP

Best choice for modern websites
Up to 30% smaller than JPG at same quality
Supports both transparency and animation
Excellent browser support (95%+ of users)

WebP to PNG/JPG

Use for compatibility with older software
Some social media platforms prefer JPG
Necessary for certain printing applications

Technical Details

Supported Input Formats: JPG, JPEG, PNG, WebP
Supported Output Formats: JPG, PNG, WebP
Maximum File Size: 50MB
Quality Range: 60-100% (for JPG and WebP)
Processing: Client-side using jimp library
Privacy: No server upload, 100% local processing

FAQ

Q: Will my images be uploaded to a server?
A: No. All image conversion happens directly in your browser. Your images never leave your device.

Q: What's the best format for websites?
A: WebP is recommended for modern websites due to smaller file sizes and excellent quality. Use JPG as a fallback for older browsers.

Q: Does PNG to JPG conversion lose quality?
A: JPG uses lossy compression, so there will be some quality reduction. However, at 85-90% quality, the difference is usually imperceptible.

Q: Can I convert multiple images at once?
A: Currently, the tool processes one image at a time. Batch conversion may be added in a future update.

Q: What happens to transparency when converting PNG to JPG?
A: JPG doesn't support transparency. Transparent areas will be replaced with a white background.

Q: Is WebP supported by all browsers?
A: WebP is supported by 95%+ of modern browsers (Chrome, Firefox, Edge, Safari 14+). For older browsers, provide a JPG fallback.

Use Cases

Web Optimization: Convert images to WebP for faster page loading
Email Attachments: Convert PNG to JPG to reduce file size
Social Media: Convert to JPG for maximum compatibility
Print Materials: Convert WebP to PNG for high-quality printing
App Development: Optimize app assets by converting to appropriate formats
SEO: Reduce image sizes to improve page speed scores

Browser Compatibility

This tool works on all modern browsers:

Chrome 60+
Firefox 55+
Safari 11+
Edge 79+
Mobile browsers (iOS Safari, Chrome Mobile)

Technical Implementation

This tool uses the native HTML5 Canvas API for image format conversion. All processing happens directly in your browser using standard web technologies - no external libraries required. This ensures fast, secure, and privacy-friendly image conversions with full support for modern formats including WebP.

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