Categories

← View All Tools

Convert PNG to Optimized PNG

Convert PNG images to optimized PNG format with advanced compression settings and quality preservation

Click to upload file or drag and drop file here

Maximum file size: 50MB Supported formats: image/png

0 90 100

Higher quality = larger file size. 90+ enables advanced optimizations

0 9 9

0 = no compression, 9 = maximum compression (slower)

Progressive PNG loads in stages, improving perceived performance

Use adaptive filtering for better compression

Convert to 256-color palette for smaller file size

Force 8-bit per channel color depth

Key Facts

Category
Media
Input Types
file, range, checkbox
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

Reduce the file size of your PNG images without sacrificing visual clarity using our advanced PNG optimization tool. This utility allows you to fine-tune compression levels, color depth, and filtering techniques to achieve the perfect balance between performance and image quality.

When to Use

  • •Reducing image file sizes to improve website loading speeds and SEO performance.
  • •Preparing high-quality graphics for mobile applications where bandwidth is limited.
  • •Optimizing large PNG assets for email attachments or storage-constrained environments.

How It Works

  • •Upload your PNG file to the tool.
  • •Adjust the compression level, quality, and filtering settings to suit your needs.
  • •Apply optional advanced features like progressive loading or color palette reduction.
  • •Download your optimized PNG file instantly.

Use Cases

Web developers optimizing hero images and icons for faster page load times.
Content creators preparing images for high-performance digital marketing campaigns.
App designers minimizing the total build size of mobile software assets.

Examples

1. Optimizing Website Hero Images

Web Developer
Background
A high-resolution PNG hero image is causing slow page load times, negatively impacting the site's Google PageSpeed score.
Problem
The file size is too large for web delivery without losing visual detail.
How to Use
Upload the hero image, set quality to 85, enable progressive loading, and use adaptive filtering.
Example Config
quality: 85, progressive: true, adaptiveFiltering: true
Outcome
The image file size is reduced by 60% while maintaining visual quality, significantly improving page load speed.

2. Reducing App Asset Size

Mobile App Designer
Background
The app package size is exceeding store limits due to numerous high-bit-depth PNG icons and UI elements.
Problem
Need to reduce asset footprint without visible degradation of UI icons.
How to Use
Upload the icon set, enable color palette conversion, and force 8-bit depth to strip unnecessary color data.
Example Config
palette: true, force8bit: true, compressionLevel: 9
Outcome
The total size of the UI assets is cut in half, helping the app stay within store size constraints.

Try with Samples

image, png, file
PNG Samples
Sample PNG images in different aspect ratios and resolutions
title token png
image
Web Image Processing Python Samples
Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
preferred input family image
image
Web Image Processing Go Samples
Web Go image processing examples including image reading/saving, image resizing, and format conversion
preferred input family image
image
Windows Image Processing C++ Samples
Windows C++ image processing examples including reading/saving images, resizing, and format conversion using Windows Imaging Component (WIC)
preferred input family image
image

Related Hubs

Image Convert Tools
Explore 100 image tools for convert workflows and compare closely related utilities quickly.
Image Tools
Explore 40 image tools for utility workflows and compare closely related utilities quickly.
Json Convert Tools
Explore 100 json tools for convert workflows and compare closely related utilities quickly.
Audio Convert Tools
Explore 100 audio tools for convert workflows and compare closely related utilities quickly.

FAQ

Does this tool reduce image quality?

It depends on your settings. Higher compression levels may slightly affect quality, but you can maintain high fidelity by adjusting the quality slider and filtering options.

What is the maximum file size I can upload?

You can upload PNG files up to 50MB in size.

What does the Progressive PNG option do?

Enabling progressive loading allows the image to render in stages, improving the perceived loading speed for users on slower connections.

Can I convert images to other formats?

No, this tool is specifically designed to optimize PNG files while keeping them in the PNG format.

What is the difference between compression level 0 and 9?

Level 0 provides no compression, while level 9 offers the maximum possible compression, resulting in the smallest file size but requiring more processing time.

API Documentation

Request Endpoint

POST /en/api/tools/png-to-optimized-png

Request Parameters

Parameter Name Type Required Description
imageFile file (Upload required) Yes -
quality range No Higher quality = larger file size. 90+ enables advanced optimizations
compressionLevel range No 0 = no compression, 9 = maximum compression (slower)
progressive checkbox No Progressive PNG loads in stages, improving perceived performance
adaptiveFiltering checkbox No Use adaptive filtering for better compression
palette checkbox No Convert to 256-color palette for smaller file size
force8bit checkbox No Force 8-bit per channel color depth

File type parameters need to be uploaded first via POST /upload/png-to-optimized-png to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-png-to-optimized-png": {
      "name": "png-to-optimized-png",
      "description": "Convert PNG images to optimized PNG format with advanced compression settings and quality preservation",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=png-to-optimized-png",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]