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Convert PNG to Raw

Convert PNG images to raw pixel data for advanced image processing

Click to upload file or drag and drop file here

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

Key Facts

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

Overview

The PNG to Raw converter allows you to transform standard PNG image files into raw pixel data, providing direct access to the underlying binary information for custom image processing, game development, or hardware-level graphics tasks.

When to Use

  • •When you need to extract raw pixel buffers for custom rendering engines or graphics programming.
  • •When preparing image assets for embedded systems that require raw binary data formats.
  • •When performing low-level image analysis or machine learning tasks that require direct pixel access without compression artifacts.

How It Works

  • •Upload your PNG image file to the converter.
  • •Select your preferred bit depth (8-bit or 16-bit per channel) to match your target system requirements.
  • •Toggle the premultiplied alpha option if your processing pipeline expects alpha-blended pixel values.
  • •Download the resulting raw binary file containing the uncompressed pixel data.

Use Cases

Generating raw texture maps for custom game engine development.
Extracting pixel data for scientific image analysis and computer vision research.
Preparing image data for direct memory mapping in embedded display hardware.

Examples

1. Game Engine Texture Preparation

Graphics Programmer
Background
A developer needs to load a custom texture into a proprietary game engine that only accepts raw binary pixel buffers.
Problem
The source assets are in PNG format, which the engine cannot parse directly.
How to Use
Upload the PNG texture, select 8-bit depth, and ensure premultiplied alpha is enabled to match the engine's blending pipeline.
Example Config
bitDepth: 8, premultiplied: true
Outcome
A raw binary file ready to be read directly into the engine's memory buffer.

2. Embedded System Display Data

Embedded Engineer
Background
An engineer is building a UI for a small microcontroller display that requires raw pixel data to be stored in flash memory.
Problem
Standard image formats are too complex for the limited hardware decoder.
How to Use
Upload the UI icon PNG and convert it to 8-bit raw data for simple byte-array integration.
Example Config
bitDepth: 8, premultiplied: false
Outcome
A clean raw data file that can be converted into a C-style header array for the firmware.

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

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FAQ

What is the output format of this tool?

The tool outputs a raw binary file containing the pixel data, stripped of all PNG headers and compression.

Can I choose between 8-bit and 16-bit output?

Yes, you can select either 8-bit or 16-bit per channel depth depending on your specific application needs.

What does the 'Premultiplied Alpha' option do?

It multiplies the color channels by the alpha channel value, which is a common requirement for certain graphics APIs and compositing workflows.

Is there a file size limit for uploads?

Yes, the tool supports PNG files up to 50MB in size.

Does this tool support batch conversion?

Currently, the tool processes one PNG image file at a time.

API Documentation

Request Endpoint

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

Request Parameters

Parameter Name Type Required Description
imageFile file (Upload required) Yes -
bitDepth select No -
premultiplied checkbox No -

File type parameters need to be uploaded first via POST /upload/png-to-raw 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-raw": {
      "name": "png-to-raw",
      "description": "Convert PNG images to raw pixel data for advanced image processing",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=png-to-raw",
      "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]