Free Online PNG Image Compressor – Reduce File Size Without Losing Transparency or Quality

Optimize your PNG images for web, design projects, or storage with our fast, free online compressor. Our tool uses advanced lossless compression algorithms to shrink PNG file sizes by up to 70% while preserving the original transparency and visual quality. No software installation, no registration, and 100% secure – compress your PNG files in seconds from any device.

Compress PNG Now

Why Choose Our PNG Image Compressor?

Preserve Transparency & Quality

Our lossless PNG compression ensures your images retain their alpha channel (transparency) and pixel-perfect quality. Unlike generic compressors, we optimize PNGs without sacrificing the clarity of logos, icons, or graphics with transparent backgrounds.

Batch Compression Support

Save time by compressing up to 20 PNG files at once. Our batch processing feature is ideal for graphic designers, web developers, and content creators who need to optimize multiple images for websites, apps, or marketing materials quickly.

No File Size Limits

Process PNG files of any size – from small icons (10KB) to high-resolution graphics (100MB per file). Our tool has no upload limits, so you can compress large PNGs without upgrading to a paid plan or splitting files into smaller batches.

Lossless & Lossy Options

Choose between lossless compression (perfect for professional design work) or lossy compression (for maximum file size reduction with minimal quality loss). Adjust the compression level to balance size and quality for your specific use case.

100% Free & No Watermarks

Our PNG compressor is completely free to use for personal and commercial projects. No hidden fees, no subscription requirements, and no watermarks on your compressed images – use it as often as you need, with no restrictions.

Secure & Private Processing

Your privacy is our top priority. All uploaded PNG files are processed on secure servers and automatically deleted after 1 hour. We never store, share, or sell your images, ensuring complete data protection for all users.

How to Compress PNG Images in 3 Simple Steps

1

Upload Your PNG Files

Click the "Upload Images" button to select PNG files from your device, or drag and drop them directly into the upload area. You can upload up to 20 files at once for batch compression, including files with transparent backgrounds.

2

Choose Compression Settings

Select lossless compression (preserve all quality/transparency) or lossy compression (max size reduction). Adjust the compression level (1-10) to fine-tune the balance between file size and visual quality.

3

Download Compressed Images

Click "Compress Now" and wait for the process to complete (usually a few seconds per image). Download your compressed PNG files individually or as a ZIP archive for batch uploads – ready to use in your projects.

What Our Users Say

"As a graphic designer, I rely on PNGs for logos and icons with transparent backgrounds. This compressor reduces file size by 65% while keeping transparency intact – my website loads 2x faster now!"

– Mia S., Graphic Designer

"I've tried dozens of PNG compressors, but this one is the only one that doesn't ruin the transparency of my product images. Batch processing saves me hours every week – 10/10 recommend!"

– Alex K., E-commerce Owner

"Our app uses hundreds of PNG icons, and this tool helped us cut the total file size by 70% without any quality loss. The mobile interface makes it easy to compress on the go too."

– Ryan T., App Developer

"I was skeptical about free PNG compressors, but this one delivers. No watermarks, no file limits, and the lossless compression keeps my digital art looking perfect. It's now my go-to tool."

– Zoe L., Digital Artist

"As a web developer, I need to optimize PNGs for client websites. This tool is fast, easy to use, and preserves transparency – something many other compressors fail at. It's a game-changer for my workflow."

– Liam D., Web Developer

"I compress PNG infographics for my blog every week. This tool reduces file size so my posts load faster, and the lossy option lets me tweak the balance between size and quality perfectly."

– Chloe R., Content Creator

70%
Average File Size Reduction
4.5M+
PNGs Compressed Monthly
100%
Transparency Preservation
20
Files Per Batch Compression

Frequently Asked Questions About PNG Compression

Will compressing my PNG image lose transparency?

No – our lossless PNG compression preserves the alpha channel (transparency) in your images. Even with lossy compression, the transparency is maintained, though minor visual adjustments may occur (adjust the compression level to minimize this).

What's the difference between lossless and lossy PNG compression?

Lossless compression reduces file size by reorganizing data without removing any pixels – the compressed image is identical to the original. Lossy compression removes non-essential data for maximum size reduction, with minimal quality loss that's rarely noticeable to the human eye.

Can I compress multiple PNG files at once?

Yes! Our tool supports batch compression of up to 20 PNG files per session. This is ideal for users who need to optimize multiple images (e.g., icons, logos, graphics) quickly, without uploading files one by one.

Is there a limit to the size of PNG files I can compress?

No – we have no file size limits for PNG compression. Our tool can process files up to 100MB per image, which is more than enough for high-resolution graphics, large icons, or professional design files.

Are my uploaded PNG files secure?

Absolutely. All files are processed on encrypted servers and automatically deleted after 1 hour. We do not store, share, or use your images for any purpose other than compression, ensuring complete privacy and security.

Does this tool work on mobile devices?

Yes – our PNG compressor has a fully responsive design that works on all mobile devices (iOS and Android), tablets, laptops, and desktops. No app installation is needed – simply open the tool in your mobile browser to compress images on the go.

Why is my compressed PNG still large?

PNGs with complex graphics, high color depth, or large dimensions may compress less than simpler images. Try using the lossy compression option (adjust to a higher level) or reduce the image dimensions before compression to further reduce file size.

Can I compress other image formats besides PNG?

This tool is optimized for PNG compression (especially for preserving transparency). We offer separate free compressors for JPG, WebP, and GIF formats, each tailored to the unique characteristics of those file types.

Do I need to install software to use this PNG compressor?

No software installation is required. Our tool is web-based and runs directly in your browser (Chrome, Firefox, Safari, Edge). This means you can use it on any device with an internet connection, no downloads or plugins needed.

Is there a way to preview the compressed PNG before downloading?

Yes – our tool provides a side-by-side preview of the original and compressed PNG images, so you can compare quality and file size before downloading. This lets you adjust the compression level to find the perfect balance for your needs.