Compress heavy PNG images by quantizing colors into an optimized palette while preserving crystal-clear alpha transparency.
Drag and drop your file here, paste from clipboard (Ctrl+V), or click browse.
Supports JPG, PNG, WebP, SVG, AVIF, HEIC, GIF, BMP, TIFF, ICO.
Follow 3 easy steps to process your image online.
Upload single or multiple image files (JPG, PNG, WebP) you want to optimize (up to 50MB).
Use the live slider to balance file size reduction against visual clarity with instant side-by-side preview.
Review real-time file size savings, reduction percentage, and estimated network transfer speed.
Download your lightweight image with up to 80% reduced file size and zero server uploads.
Your photos are processed directly inside your web browser. Nothing is ever uploaded to any cloud server or database, keeping your images strictly confidential.
Powered by modern HTML5 Canvas, WebGL, and WebAssembly for instantaneous transformations without queueing or server rendering delays.
Works smoothly across all modern web browsers on iPhone Safari, Android Chrome, Mac, Windows, and Linux computers.
Click any question below for detailed information about PNG Compressor
PNG Compressor is a free, web-based utility designed to lossless & lossy compression for png with alpha. Powered by modern browser technologies including HTML5 Canvas and WebAssembly, it processes your files directly on your local device without sending images to any external server. This guarantees instant results, maximum data privacy, and lossless output quality.
Yes, completely. Unlike traditional cloud converters, PNG Compressor does not upload, store, or log your pictures on remote servers. All image rendering and processing happens entirely inside your browser sandbox. Once you close or reload the page, your images are cleared from browser memory with zero residual footprint.
Depending on the original file format and visual complexity, users typically achieve 50% to 80% size savings without noticeable quality loss. Real-time byte counters and visual preview cards allow you to verify file size savings before downloading.
PNG Compressor supports uploads up to 50MB per file and accepts JPG, PNG, WebP, SVG, AVIF, HEIC, GIF, BMP, TIFF, and ICO. Processing is optimized for lightning-fast speeds on both mobile devices and desktop computers.