Will my image dimensions (width & height) change?

No! By default, 'Preserve Original Dimensions' is enabled. We only compress the internal data bytes (DCT frequency quantization & entropy encoding) so your pixel dimensions remain 100% identical.

How small can I compress my image?

You can compress images by 50% to 90% in file size while retaining crystal clear visual sharpness on screens and prints.

Are my images uploaded to any server?

Never. All compression runs locally inside your browser WebAssembly and Canvas engine for complete privacy.

Compress Image

Reduce file size while maintaining quality.

Free No Signup 100% Private No Watermark

Tap to select or drop files here

Processed 100% locally in your browser

Up to 100 MB per file and 200 MB per batch

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More Image Tools

How to Use Compress Image in 3 Easy Steps

Fast, local, and completely free with no software installation required.

Select or Drop Your File

Choose or drag-and-drop your file into the secure workspace directly from your device.

Customize Settings & Process

Adjust desired quality, options, or target formatting in real-time with instant browser processing.

Download Your Finished File

Save your optimized, watermark-free result immediately with zero server uploads or tracking.

About Compress Image

Quick4Media Image Compressor reduces file sizes using smart quantization and entropy encoding without downscaling your photo resolution. Your 500×500 image stays 500×500, and 4K images stay 4K. All processing happens entirely in your browser memory.

All file conversions, resizing, and processing take place directly in your browser using modern WebAssembly and HTML5 Canvas technologies. No data is stored, tracked, or sent across external networks.