Does this PNG compressor keep transparent backgrounds?

Yes! When compressing as PNG, transparency is fully preserved. If you convert to JPG, transparent areas are filled with white.

Why are PNG files larger than JPGs?

PNG is a lossless format designed to preserve exact pixel values and sharp edges, making it ideal for text and graphics but less efficient for complex photographic textures.

Can I convert a PNG to WebP to get even smaller files?

Yes. WebP supports transparent alpha channels just like PNG, but offers lossy compression that can cut file size by up to 70% with negligible visual change.

Lossless / Smart

Online PNG Compressor

PNG images deliver exceptional clarity for logos, screenshots, UI mockups, and graphics requiring alpha transparency. However, raw PNG files are frequently huge because they rely on lossless DEFLATE compression. SnapReduce optimizes PNGs directly in your browser.

100% Client-Side Image Processing

Files are processed in memory and never leave your device

Online PNG Compressor

Drag & drop your image here, or browse files

Supports JPG, JPEG, PNG, WebP & iPhone HEIC • Up to 50MB

Target: 100 KBNo WatermarkFree & Unlimited

How to Use Online PNG Compressor

Upload PNG Graphic

Select your PNG file with or without alpha transparency.

Select Target Size

Choose a target size or maintain original resolution.

Review Transparency

Preview confirms transparent channels are maintained intact.

Download PNG

Save your optimized lightweight PNG file.

How the Processing Engine Works

True PNG compression is lossless, which means color data is mathematically preserved. When an ultra-low target size (e.g. 50KB for a 4K graphic) cannot be met purely through lossless compression, our tool clearly informs you and offers dimension downscaling or WebP conversion (which supports both alpha transparency and lossy compression).

Balancing Quality, Dimensions & Target Size

If your graphic has a transparent background, keeping it as PNG or converting to WebP preserves transparency. Converting a transparent PNG to JPG will replace alpha channels with a solid background color (default white).

Frequently Asked Questions

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