Compress PNG Online Online

Reduce PNG file size instantly with our free online PNG compressor. Upload your PNG image and download a smaller, optimized file — entirely inside your browser without installing any software.

All image processing happens locally using the HTML5 Canvas API. Your PNG files are never sent to a server, so your images remain completely private.

Smaller PNG files improve website speed, reduce bandwidth usage, and make it easier to share and store images.

Built for speed, privacy, and simplicity.

• Compress PNG images instantly in your browser
• Preserves PNG transparency (alpha channel)
• File dimensions stay unchanged
• Images processed entirely on your device
• No account or registration required
• Works on Windows, macOS, Linux, Android, and iPhone
• Completely free to use

PNG is a lossless format that preserves full image quality, but this can result in large file sizes — especially for detailed images or screenshots.

Compressing your PNGs helps you:

• Reduce page load times
• Lower bandwidth costs
• Improve mobile browsing experience
• Meet file size upload restrictions
• Save storage on devices and servers
• Boost SEO through faster-loading pages

PNG compression via Canvas re-encoding strips unnecessary metadata and optimizes encoding, often producing meaningfully smaller files while preserving transparency.