Free Online Image Compressor

Compress JPG, PNG, and WebP images online without sacrificing quality. Reduce image file size by up to 85% locally in your browser.

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Click to Select or Drop Images (JPG, PNG, WebP)
Process high-resolution files securely. Everything stays on your machine.
Higher = better quality, larger size
Loaded Images: 0
Client-Side Guarantee: Your images are processed 100% in your browser. Files never leave your computer.

How to Use the Image Compressor

  1. Click the upload area or drag and drop your photos (JPG, PNG, WebP).
  2. Adjust the quality slider to find your desired balance between file size and sharpness.
  3. Check the live before/after size reduction metrics.
  4. Click 'Download Compressed Image' to save your optimized file instantly.

Key Features

✓ High-speed browser-side compression with 0% server upload risk
✓ Interactive compression quality slider with instant live preview
✓ Support for JPEG, PNG, and next-gen WebP formats
✓ Side-by-side file size and percentage reduction comparison
✓ Batch file processing and one-click instant download
✓ No file size limitations or upload limits

About Image Compressor

Reduce image payload sizes by up to 85% while preserving visual clarity. Our image compressor runs entirely in your client browser utilizing HTML5 Canvas, OffscreenCanvas, and native quantization methods for maximum speed and absolute privacy.

Frequently Asked Questions

How does client-side image compression work?

Your image is decoded into raw pixel data within browser memory, redrawn using high-efficiency interpolation algorithms on an HTML5 canvas, and re-encoded using modern lossy compression algorithms with optimized chroma subsampling.

Are my personal pictures stored or viewed by anyone?

Never. All compression operations execute inside your device's browser memory. Not a single pixel is ever uploaded to our or any third-party servers.

What is the optimal quality setting for web images?

A quality setting between 75% and 85% typically reduces file size by 60% to 80% with virtually no perceptible loss in quality on high-resolution displays.

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