Universal Image Converter - Free & Private
Convert between HEIC, WebP, PNG, JPG/JPEG, and AVIF formats instantly with our free universal image converter. Auto-detects your image format and converts to your preferred output with adjustable quality settings, batch processing up to 100 images, resize options, and EXIF metadata control. All conversion happens locally in your browser—no uploads, no registration, complete privacy. Perfect for photographers, designers, and anyone needing reliable image format conversion.
Working with data files too? Complement your workflow with CodeCipher to encode, decode, and validate text payloads alongside your converted visuals.
Tap to select or drag & drop
Works on mobile and desktop
Press Ctrl+V to paste
Up to 100 files
This tool is provided as-is for convenience. Image quality and conversion results may vary. For critical professional use, we recommend verifying output quality before use.
✓ All processing happens in your browser
✓ Your images are never uploaded to our servers
✓ 100% private and secure
See our Privacy Policy for details.
Supported Conversions
HEIC Conversions
- • HEIC to JPG
- • HEIC to PNG
- • HEIC to WebP
- • HEIC to AVIF
WebP Conversions
- • WebP to JPG
- • WebP to PNG
- • WebP to AVIF
PNG/JPG Conversions
- • PNG to JPG
- • PNG to WebP
- • PNG to AVIF
- • JPG to PNG
- • JPG to WebP
- • JPG to AVIF
AVIF Conversions
- • AVIF to JPG
- • AVIF to PNG
- • AVIF to WebP
Next-gen format with excellent compression
Why Use Our Universal Converter?
🔄 All-in-One Tool
Convert between any supported format in one place. No need to search for different tools.
⚡ Lightning Fast
Instant conversion in your browser. Process up to 100 images at once.
🔒 100% Private
Your images never leave your device. Complete privacy guaranteed.
♾️ No Limits
Unlimited conversions, unlimited file sizes, completely free forever.
Resize While Converting
Resize your images to custom dimensions, percentages, or social media sizes during conversion. Perfect for optimizing images for web, social media, or print.
Frequently Asked Questions
Can I resize images while converting?
Yes! ConvertFast allows you to resize images during conversion. Choose custom dimensions, resize by percentage, or select from social media presets like Instagram (1080×1080), Facebook, Twitter, YouTube, and more. You can maintain aspect ratio or specify exact dimensions. This is perfect for optimizing images for web, social media, or reducing file sizes.
Specialized Converters
Need a specific converter? Check out our specialized tools: