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Convert JPEG to PNG

Convert JPEG images to PNG format with transparency support and lossless compression

Click to upload file or drag and drop file here

Maximum file size: 10MB Supported formats: image/jpeg, image/jpg

Key Facts

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

Overview

Easily convert your JPEG images to PNG format with this efficient utility, designed to maintain high image quality while offering optional lossless compression settings.

When to Use

  • •When you need to convert JPEG files to PNG for better compatibility with web graphics.
  • •When you want to apply lossless compression to reduce file size without sacrificing visual quality.
  • •When preparing images that require a specific format for professional design software or web development.

How It Works

  • •Upload your JPEG image file using the file selector.
  • •Adjust the optional compression level slider from 0 to 9 to balance file size and quality.
  • •Click the convert button to process your image and download the resulting PNG file.

Use Cases

Optimizing website assets by converting JPEGs to compressed PNGs for faster loading.
Preparing images for graphic design projects that require the PNG format.
Standardizing image libraries by converting various JPEG sources into a uniform PNG format.

Examples

1. Web Asset Optimization

Web Developer
Background
A developer needs to convert a high-resolution JPEG banner into a PNG format to ensure consistent rendering across different browsers.
Problem
The original JPEG file is too large and lacks the desired format compatibility for the site's asset pipeline.
How to Use
Upload the banner image and set the compression level to 9 for the smallest possible file size.
Example Config
compressionLevel: 9
Outcome
A high-quality, compressed PNG file ready for immediate deployment on the website.

2. Graphic Design Preparation

Graphic Designer
Background
A designer has a JPEG photograph that needs to be converted to PNG to be used as a base layer in a design project.
Problem
The JPEG format is not ideal for the design software's workflow, which prefers PNG.
How to Use
Upload the JPEG file and use the default compression settings to perform a quick conversion.
Outcome
A clean PNG version of the image that integrates perfectly into the design project.

Try with Samples

image, png, jpg
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
PNG Samples
Sample PNG images in different aspect ratios and resolutions
title token png
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

Is the conversion process lossless?

Yes, the tool supports lossless compression, ensuring your image quality remains intact during the conversion.

What is the maximum file size I can upload?

You can upload JPEG files up to 10MB in size.

Can I convert multiple images at once?

Currently, this tool supports processing one image file at a time.

What does the compression level setting do?

The compression level (0-9) determines the PNG file size; higher values provide better compression while maintaining image integrity.

Does this tool support transparency?

Yes, the output PNG format natively supports transparency, which is preserved during the conversion.

API Documentation

Request Endpoint

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

Request Parameters

Parameter Name Type Required Description
imageFile file (Upload required) Yes -
compressionLevel number No -

File type parameters need to be uploaded first via POST /upload/jpg-to-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-jpg-to-png": {
      "name": "jpg-to-png",
      "description": "Convert JPEG images to PNG format with transparency support and lossless compression",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=jpg-to-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]