Image Converter - Convert PNG, JPG, WebP, AVIF Online Free
Free online image converter with AVIF, WebP, PNG, JPG support. Batch convert multiple images, auto-orient using EXIF, flatten transparency with background color, apply filters (grayscale, brightness, contrast), resize, and control quality — all privately in your browser.
🖼️ Image Converter
Convert images between formats, resize, compress, and optimize — all in your browser with complete privacy
Drop images here or click to upload
Supports: PNG, JPG, JPEG, WebP, SVG (Max 10MB each, multiple files)
About the Image Converter
The Image Converter transforms images between popular formats including PNG, JPG, WebP, AVIF, and SVG with professional-grade quality control. Whether you need to optimize images for web performance, convert formats for compatibility, or batch process multiple files, this tool handles it all without uploading your images to any server.
Perfect for web developers optimizing site speed, designers preparing assets for different platforms, photographers managing image libraries, and anyone who needs quick, reliable image format conversion with complete privacy.
Key Features
Multiple Format Support
Convert between PNG, JPG, WebP, AVIF, and SVG with full transparency and quality preservation.
Batch Processing
Upload and convert multiple images simultaneously to save time on large projects.
Quality Control
Adjust compression levels with presets or custom settings to balance file size and visual quality.
Smart Resizing
Resize images with aspect ratio locking and multiple scaling modes for perfect dimensions.
Before/After Preview
Compare original and converted images side-by-side to ensure quality meets your needs.
Image Filters
Apply grayscale, brightness, and contrast adjustments during conversion.
100% Private
All processing happens locally in your browser - your images never leave your device.
Drag & Drop
Simply drag images onto the page for instant upload and conversion.
How to Use the Image Converter
- Upload Images: Click the upload area or drag and drop your image files (PNG, JPG, WebP, SVG, AVIF)
- Select Output Format: Choose your desired format from the dropdown menu (PNG, JPG, WebP, or AVIF)
- Adjust Quality: Use the quality slider or select a preset (High, Balanced, or Small File) for lossy formats
- Configure Options: Optionally enable resizing, apply filters, or adjust transparency settings
- Preview Results: Review the before and after comparison to ensure the output meets your requirements
- Convert & Download: Click "Convert Image" to process, then download your converted file
- Batch Convert: For multiple images, use "Convert All" to process them simultaneously
Common Use Cases
- Web Optimization: Convert images to WebP or AVIF format to reduce page load times by 30-50% while maintaining visual quality
- Social Media: Resize and convert images to meet platform-specific requirements for Instagram, Facebook, Twitter, and LinkedIn
- Email Attachments: Compress large images to JPG format with reduced quality to stay under email size limits
- Print Preparation: Convert web images to high-quality PNG format for professional printing and design work
- Transparency Management: Convert PNG images with transparency to JPG with custom background colors for compatibility
- Batch Processing: Convert entire photo albums or product catalogs from one format to another in a single operation
- SVG Rasterization: Convert vector SVG graphics to raster formats (PNG, JPG) at custom resolutions for various uses
Tips & Best Practices
- Use WebP format for web images - it offers 25-35% better compression than PNG or JPG with similar quality
- Keep quality at 85-90% for JPG exports to achieve the best balance between file size and visual quality
- Convert to PNG when you need transparency or lossless compression for graphics, logos, and screenshots
- Enable "Auto-orient based on EXIF" to automatically rotate photos taken on mobile devices
- Use the "Contain" resize mode to maintain aspect ratio and avoid distortion when changing dimensions
- For images with transparency, flatten to a white or colored background before converting to JPG format
- Process images in batches to save time when converting multiple files with the same settings
- Preview converted images before downloading to verify quality, especially when using high compression
- For print materials, keep images in high-quality formats like PNG or use JPG quality above 95%
- AVIF offers the best compression but may not be supported by older browsers - use WebP as a fallback
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Frequently Asked Questions
Does this tool upload my images to a server?
No, absolutely not. All image conversion and processing happens entirely in your browser using JavaScript. Your images never leave your device, are not uploaded to any server, and are not stored or tracked in any way. This ensures complete privacy and security for your images.
Which image formats are supported?
The converter supports PNG, JPG/JPEG, WebP, AVIF (if your browser supports it), and SVG as input formats. You can convert to PNG, JPG, WebP, or AVIF as output formats. SVG files can be converted to any raster format at your desired resolution.
How do I preserve transparency when converting images?
To keep transparency, convert to PNG or WebP format as these support alpha channels. JPG does not support transparency, so if you convert to JPG, enable the "Flatten transparency" option and choose a background color to replace transparent areas.
What's the difference between PNG, JPG, and WebP?
PNG is lossless and supports transparency, making it ideal for graphics and logos but resulting in larger files. JPG uses lossy compression for smaller files but doesn't support transparency, perfect for photos. WebP offers better compression than both with optional transparency support, ideal for web use.
Can I convert multiple images at once?
Yes! Upload multiple files by selecting them together or dragging them onto the upload area. Use the "Convert All" button to process all images with the same settings, then download them individually or all at once using "Download All".
What quality setting should I use for JPG and WebP?
For most web images, use 85-90% quality for the best balance between file size and visual quality. Use 95%+ for print or when quality is critical. For small file sizes (like email attachments), 70-80% is usually acceptable. Always preview before downloading to ensure quality meets your needs.
Why should I use WebP or AVIF instead of PNG or JPG?
WebP and AVIF are modern formats that offer significantly better compression than PNG or JPG while maintaining similar or better quality. WebP can reduce file sizes by 25-35% compared to JPG and PNG, while AVIF offers even better compression. This means faster page loads and reduced bandwidth usage.
Can I use this tool offline?
Yes, once the page loads, the image converter works entirely in your browser without requiring an internet connection. You can even save the page locally for completely offline use.