🗜️ Compress PNG Online — Free, No Watermark
Compress PNG images online without losing transparency (PNG). 100% browser-based — no upload to server, no watermark, no signup required. Supports JPG, PNG, and WebP.
Compress PNG Online
All processing happens 100% in your browser (Canvas API). Images never leave your device and are never stored on any server.
Frequently Asked Questions
Does compress png online reduce image quality?
Lossy compression (JPEG) slightly reduces quality to achieve a much smaller file size. For most web use cases, the difference is imperceptible. Use the quality slider to find the sweet spot for your image.
Is my image uploaded to a server?
No. All compression is done using the HTML Canvas API directly in your browser. Your images never leave your device and are never sent to any server.
What is the best format for PNG images?
PNG uses lossless compression, meaning no pixel data is lost. For further size reduction, convert PNG to WebP (25-35% smaller) or JPEG if no transparency is needed.