Compress PNG Images Online Directly in Your Browser

Fast, Private In-Browser Compressor • Zero Server Uploads

Optimize PNG graphics and screenshots while preserving crystal-clear alpha transparency. In-browser client-side engine.

Presets:

Drag & drop your images here

Supports multiple JPG, PNG, WebP & GIF up to 50MB. Auto-compresses instantly in parallel.

Choose Files to Compress (Multi-Select)

100% In-Browser Privacy⚡ Batch Multi-File (Hold Ctrl / ⌘ to select multiple)📋 Ctrl+V / ⌘V Paste Ready

The Honest Truth About Browser-Based PNG Compression

PNG files are prized for their lossless compression and clean alpha transparency, making them essential for logos, UI graphics, and software screenshots. However, PNG files can easily balloon to several megabytes.

Our browser engine applies smart color palette quantization and Deflate block compression to trim bloat while preserving your pixel clarity.

PNG Optimization FAQs

Learn more about lossless formats and alpha channel handling.

How does PNG compression work without losing transparency?

PNG files utilize lossless Deflate compression with an alpha channel. CompressTinyImage preserves alpha channel integrity while trimming redundant metadata and applying dimensional fitting when targeting strict file sizes.

Why are PNG files generally larger than JPEG or WebP?

PNG is an exact lossless format, storing every single pixel color value without perceptual discarding. For photographic scenes, WebP or JPEG will be 5x to 10x smaller, while PNG remains best for line art, screenshots, and logos.

How can I compress a PNG file to an exact target KB limit (like 50KB or 100KB)?

Under the official HTML5 Canvas specification, PNG export is strictly lossless. To hit exact byte targets with PNG, CompressTinyImage applies intelligent dimension scaling or gives you the option to export as transparent WebP for maximum compression.

Can I convert my PNG to WebP to save more space?

Yes! Select "Convert to WebP" in the compressor format selector. You will retain full transparency while reducing file weight by an average of 40% to 70%.

Is this PNG compressor lossless or lossy?

Our PNG compressor operates losslessly by default. When dimension scaling is activated for Target KB mode, it preserves crisp pixel lines while proportionally reducing canvas dimensions.

Are my confidential design assets, logos, and UI mockups secure?

100% secure. Everything runs inside your device browser memory. Your design mockups and logos are never stored or transmitted across the web.