Image Compressor — Reduce File Size Instantly
Compress JPG, PNG, and WebP images entirely in your browser with adjustable quality. No uploads, no watermarks, instant results.
Drop images here or click to browse
JPG, PNG, WebP · Up to 25MB per file · Max 10 files
WebP gives best compression for web use
What is Image Compressor?
Compressing web images reduces page load times and bandwidth consumption without degrading perceptual visual fidelity. Our Image Compressor applies client-side HTML5 Canvas quantization and re-encoding to compress single or batch JPG, PNG, and WebP images locally in browser memory with zero server uploads and instant ZIP downloads.
Designed for accuracy, speed, and privacy, this tool runs entirely on your local device with zero network latency.
How to Use the Image Compressor
- 1Upload or drag and drop single or multiple image files (JPG, PNG, or WebP).
- 2Adjust the Compression Quality slider (from 10% maximum compression to 100% maximum fidelity).
- 3Select your desired output format (Keep Original, Convert to JPEG, PNG, or WebP).
- 4Review the before-and-after file size savings percentage and download individual files or a combined ZIP archive.
Formula & Calculation Logic
Applies HTML5 Canvas lossy quantization for JPEG and WebP encoding. Reducing the quality parameter lowers discrete cosine transform (DCT) coefficient precision to eliminate high-frequency visual data imperceptible to the human eye.
Compression Ratio (%) = [1 - (Compressed File Size / Original File Size)] * 100%Image Compressor Frequently Asked Questions
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