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Compress PNG.

Reduce your PNG file size while maintaining perfect transparency and sharpness.

Upload your image here

Drag and drop your file, or click to browse.
Supports PNG, JPG, WEBP, AVIF, GIF • Max. 50MB (GIF: 10MB)

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Your images never leave your device. 100% private processing.

Compress PNG Online Free: Reduce Size Without Losing Transparency

Optimize logos, icons, and illustrations. Reduce size by up to 70% without jagged edges or losing the transparent background.

✓ Perfect Transparency ✓ Ideal for Logos ✓ Private

How to reduce PNG image size?

1. Upload PNG

Drag and drop or select the PNG images or logos to process.

2. Adjust compression

Optimize the weight while preserving perfect transparency.

3. Download

Get your optimized PNG images ready to use instantly.

Explore Other Image Formats

Compress JPG

Best for photographs
Compress WebP

Best for web performance
Compress GIF

For animated images

What Can You Use PNG Compression For?

The PNG format is ideal for graphics with transparency. Optimizing its size has benefits depending on your use.

Logos & Branding

Keep the perfect transparency of your logo while reducing weight for emails, signatures, and corporate documents.

Icons & UI Elements

Optimized icons for apps and websites that load faster without losing crisp edges or transparency.

Illustrations & Graphics

Compress vectorized illustrations and graphics while maintaining vibrant colors and transparent areas for professional compositions.

Screenshots

Reduce screenshot file size while maintaining readable text and crisp details for documentation and tutorials.

Frequently Asked Questions: Compress PNG with Transparency

Is transparency preserved when compressing PNG?
Yes, transparency is perfectly preserved. Our algorithm carefully handles the alpha channel (transparency) throughout the compression process. Your logo, icon, or graphic will keep its transparent background exactly like the original, but weigh up to 70% less.
Is it safe? Are my images uploaded to any server?
100% safe and private. Your images never leave your device. All processing happens locally in your browser using WebAssembly technology. We don't upload, store, or have access to any of your images. Your files remain completely private.
Why are my PNG files so large?
PNGs are heavier because they store every pixel with exact precision, including the transparency channel, without removing any data (lossless compression). This makes them perfect for logos, icons, and graphics with crisp text, but results in large files. Our compressor removes redundant colors that the human eye can't perceive, reducing up to 70% of the file size without affecting visual quality or transparency.
How does this PNG compressor work?
We use intelligent compression with color quantization that reduces the color palette without affecting visual appearance. The process automatically optimizes your PNG image by reducing redundant colors while keeping transparency 100% intact. This allows up to 70% size reduction, especially effective for logos, icons, and graphics with solid color areas.
How much can I reduce the size of a PNG?
Depending on the image, you can reduce between 40% and 70% of the file size. Logos with solid colors, icons, and graphics with flat areas compress better. Illustrations with many gradients, fine details, or complex effects will have less reduction to preserve visual quality and crisp edges.
What type of images is PNG best for?
PNG is ideal for logos, icons, illustrations, graphics with text, screenshots, and any image requiring transparency or crisp edges. It's not the best choice for photographs (use JPG or WebP for photos). PNG excels with solid colors, defined lines, and transparent areas where you need maximum sharpness.
Is it better to use PNG or WebP for my website?
WebP is the best option for modern websites because it offers up to 30% more compression with the same quality and supports transparency, improving load speed and SEO. However, PNG is needed for universal compatibility in emails, Office documents, and as a fallback. Recommendation: use WebP for your website with compressed PNG as backup; for logos in emails or documents, use optimized PNG.
Do I lose quality when compressing a PNG?
Quality loss is minimal and imperceptible to the human eye. Our algorithm intelligently reduces redundant colors that don't affect visual appearance. For logos and icons, the difference is practically invisible while achieving up to 70% size reduction. If you need zero absolute loss, adjust the quality level to maximum in the settings.

How Does PNG Image Compression Work?

The PNG format (Portable Network Graphics) uses lossless compression based on the DEFLATE algorithm, meaning it stores every pixel with complete precision including the alpha channel for transparency. This makes them ideal for logos, icons, and graphics with crisp text.

Our tool applies intelligent color quantization that reduces the color palette from 24 bits (16 million colors) to 8 bits (256 colors) when possible, keeping the alpha channel 100% intact. This technique achieves up to 70% size reduction without the human eye perceiving any difference, especially effective for images with solid color areas.

For more complex images like illustrations with gradients, the algorithm automatically preserves more colors to maintain optimal visual quality while reducing file size as much as possible.

More Online Tools for Editing Images

In addition to compressing images, you can also convert between formats directly in your browser.

Convert Image Format

Change between JPG, PNG, WebP and AVIF without losing quality.