PNG Compressor – Reduce PNG File Size Online
Shrink your PNG images without breaking transparency — compression happens instantly, right in your browser.
Everything happens in your browser. Your images are never uploaded anywhere.
Compress PNG
Shrink PNG file size in your browser using a real indexed-palette encoder — nothing is uploaded.
🔒 Everything happens in your browser. Your images are never uploaded anywhere.
Choose Images or Drag & Drop
or drop files here
Lower quality = smaller file size. PNGs reduce the color palette for a real size cut (best on photos without transparency); JPG/WebP/AVIF use standard lossy compression.
About This Tool
PNG files are lossless, which keeps them sharp — but that also
means they’re often much larger than necessary. This tool fixes
that by rebuilding the color palette, the same core idea behind
tools like TinyPNG, instead of just re-saving the file. Because it
compresses color and transparency together, icons, logos, and
screenshots with transparent backgrounds shrink properly instead
of staying untouched. So just drop your PNGs in, and compression
starts immediately, with a quality slider so you can control the
trade-off yourself.
Key Features
Instant Compression
No upload step and no button to click — compression starts
the moment you add an image.
Private & Secure
Your files stay on your device — we never upload anything to a server.
Batch Processing
Compress a handful of images or hundreds at once — there’s no batch limit.
Transparency-Safe
We compress color and alpha together, so transparent icons, logos, and UI graphics shrink properly instead of staying untouched.
Works Everywhere
Compatible with desktop, tablet, and mobile browsers — no app to install.
Completely Free
No subscriptions, registrations, sign-ups, or hidden limits.
How It Works
Add Your PNG Images
Drag and drop them in, or click to browse — one image or many at once.
Compression Starts Automatically
No button to press — compression starts the moment you add an image.
Fine-Tune If You Want
Drag the quality slider and every image recompresses live with a fresh preview and new file size.
Download
Save images individually, or grab everything at once as a ZIP.
Why Compress Your PNGs?
- ✔ Real file-size reduction through color-palette quantization, not just a basic re-save
- ✔ We handle transparency correctly, so it’s safe for icons, logos, and screenshots
- ✔ Adjustable quality, so you control the size-versus-detail trade-off
- ✔ Never makes a file bigger — if compressing wouldn’t help, we keep your original as-is
- ✔ Faster page loads and less storage and bandwidth
- ✔ 100% browser-based — no file size or batch limits
Frequently Asked Questions
Is this tool free to use?
Yes, completely free, with no sign-up and no limit on how many images you compress.
Are my images uploaded to a server?
No — we compress every image locally, right in your browser, and it never leaves your device.
Will compressing reduce image quality?
PNG compression here works by reducing the color palette. On
simple graphics — icons, UI elements, screenshots — this is
usually visually lossless. On complex photos, however, lower
quality settings can introduce visible banding, so a live
preview shows you the result before you download.
Does this work with transparent PNGs?
Yes — we compress color and transparency together, so
transparent areas stay transparent, and icons, logos, and
screenshots with alpha channels compress properly instead of
staying untouched.
What if my PNG doesn’t get any smaller?
Some PNGs are already well-optimized. If compressing
wouldn’t actually reduce the file size, the tool keeps your
original file rather than replacing it with a larger one.
Can I compress multiple PNGs at once?
Yes — drop in as many as you like and each one compresses automatically, with no batch limit.