Image Upscaler

Your files never leave your device.

Scale:

Quality:

Drag & drop an image here, or click to add

add_circle

About Our Image Upscaler

Our Image Upscaler uses advanced algorithms to increase the resolution and size of your images while maintaining quality. Whether you need to enlarge photos for printing, increase image resolution for web use, or prepare graphics for higher-resolution displays, our tool provides professional-quality results right in your browser. If you later need to precisely resize or convert your upscaled image to JPG, we offer dedicated tools for those tasks as well.

How It Works

Upload Your Image: Drag and drop an image or click to select from your device. Supports JPG, PNG, and WEBP formats.
Choose Scale Factor: Select 2x, 3x, 4x, or enter a custom scaling ratio up to 8x.
Select Quality: Choose between Fast (Bicubic) for speed or Quality (Lanczos) for better results.
Upscale: Click the upscale button and watch the before/after comparison.
Download: Save your enlarged image. If you need to resize it for specific dimensions or convert it to JPG to reduce file size, we have tools for that too!

All processing happens in your browser - your images never leave your device, ensuring complete privacy.

Upscaling Algorithms

Fast (Bicubic Interpolation)

Speed: Very fast processing
Quality: Good for most images
Best for: Screenshots, graphics, quick previews
Mobile friendly: Low memory usage

Quality (Lanczos Resampling)

Speed: Slower but still responsive
Quality: Superior edge preservation and sharpness
Best for: Photos, detailed images, print preparation
Trade-off: Higher memory usage and processing time

When to Use Image Upscaling

Print Preparation: Enlarge images for higher resolution printing
Display Scaling: Prepare images for 4K or high-DPI displays
Web Graphics: Create larger versions of logos and graphics
Photo Enhancement: Increase resolution of older or low-res photos
Digital Art: Scale up artwork and illustrations
Social Media: Meet minimum resolution requirements for platforms (you may also need to resize the image to exact dimensions afterwards).

Tips for Best Results

Start with Good Quality: Higher quality originals produce better upscaled results
Choose Appropriate Scale: 2-4x scaling typically gives the best quality-to-size ratio
Consider Your Use Case: Use Fast mode for quick previews, Quality mode for final output
Monitor Memory Usage: Large upscaling operations may require significant RAM
Test Both Algorithms: Different images may respond better to different algorithms
Compression After Upscaling: Consider converting to JPG if file size becomes too large (upscaled images are often saved as PNG).

Privacy & Performance

Our Image Upscaler processes everything locally in your browser using HTML5 Canvas and advanced JavaScript algorithms. Your images are never uploaded to our servers, ensuring complete privacy and security. The tool is optimized for mobile devices and will automatically adjust processing based on your device's capabilities.

Technical Specifications:

Supported Formats: JPG, PNG, WEBP
Maximum Scale Factor: 8x (subject to memory limitations)
Processing: Client-side using Web Workers when available
Memory Usage: Automatically managed with warnings for large operations
Mobile Support: Optimized for phones and tablets