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PNG Compressor

PNG Compressor

Compress transparent PNG images without quality loss.

Batch Engine • 100% Client-Side

Batch Settings

80 %
1 %100 %

Global compression level

Drag & drop images here, or click to browse

Supports PNG, JPG, JPEG, WEBP, SVG • Up to 50 images simultaneously

Private & Secure: 100% computed in browser. Zero data or files sent to servers.

Direct Answer: Compress transparent PNG graphics, logos, and UI screenshots without losing alpha background transparency or visual sharpness.

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About PNG Compressor

Portable Network Graphics (PNG) is the standard format for logos, illustrations, and user interface screenshots requiring transparent backgrounds. However, raw PNG files can be massive due to lossless bitmap storage. ConvertSheet's PNG Compressor selectively optimizes color palettes and entropy filters, drastically shrinking file sizes while keeping alpha transparency perfectly intact.

Algorithm & Technical Model
Exact Computation
Optimizes Deflate filtering heuristics and RGBA palette indexing to compress PNG assets while maintaining 8-bit alpha transparency.
Step-by-Step Guide

How to Convert PNG Compressor to Result Online in 3 Simple Steps

Convert your data effortlessly with zero installations and complete local privacy.

  1. 1Step 1:

    Upload PNG graphics

    Select or drop transparent PNG illustrations, icons, or screenshots.

  2. 2Step 2:

    Choose compression level

    Fine-tune compression settings with real-time byte count and visual preview.

  3. 3Step 3:

    Export optimized PNG

    Download your compressed PNGs with transparent layers preserved.

Help & Documentation

Frequently Asked Questions: PNG Compressor

Answers to common questions regarding inputs, calculations, and mathematical methodology.

Will my transparent backgrounds be preserved?

Yes. Our PNG compression engine fully preserves 8-bit and 1-bit alpha transparency channels.

Why are PNG files usually larger than JPEGs?

PNG is a lossless format designed for crisp line art and text, whereas JPEG is lossy and designed for photographs. Our tool optimizes PNG compression to bridge this size gap.

Is this compression safe for brand logos and icons?

Absolutely. High-contrast edges, fine typography, and vector-rendered graphics retain crisp definition.

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