PNG Compress

Optimize PNG files while maintaining quality

Drop your PNG here

or

PNG only · Processed in your browser

🔒 Files never leave your device

How to Compress a PNG

  1. Select or drop your image. Click "Select Image" or drag a PNG file onto the drop zone above.
  2. Let it optimize. Your PNG is compressed automatically using lossless optimization — there's nothing to adjust, and no quality is lost.
  3. Check the savings. The stats bar shows the original size, the optimized size, and how much space you saved.
  4. Download. Click Download to save the optimized PNG to your device.

What This Tool Does

This free PNG compressor reduces the file size of your PNG images without changing how they look. It's ideal for logos, icons, screenshots, and graphics with transparency that you want to load faster on a website or share more easily — all while keeping crisp edges and a transparent background fully intact.

Everything runs entirely inside your browser. Your images are never uploaded to a server, so your files stay private and the optimization happens instantly, even offline.

About the PNG Format

PNG (Portable Network Graphics) uses lossless compression, which means it shrinks file size without discarding any image data. When you reopen the file, it's pixel-for-pixel identical to the original. This is what makes PNG the right choice for graphics that need sharp lines or a transparent background, such as logos, UI elements, and screenshots.

Because the format is lossless, the savings are usually smaller than what you'd get with a lossy format. If your image is a photograph rather than a graphic, you'll often get a much smaller file by using JPEG or WebP instead.

Frequently Asked Questions

Does compressing a PNG reduce its quality?

No. PNG uses lossless compression, so the optimized image is visually identical to the original — only the file size goes down.

Why isn't there a quality slider?

Because PNG compression is lossless, there's no quality to trade off. The tool optimizes the file automatically, so no manual adjustment is needed.

Is the transparent background preserved?

Yes. Transparency is fully kept, which is one of the main reasons to use PNG for logos and graphics.

Are my images uploaded to a server?

No. All optimization happens locally in your browser. Your files never leave your device, which keeps them completely private.