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Image Brightness Adjustment

Adjust image brightness levels with real-time preview and precise control

Click to upload file or drag and drop file here

Maximum file size: 10MB Supported formats: image/jpeg, image/png, image/webp, image/gif, image/bmp, image/tiff

Upload any image file (JPEG, PNG, WebP, GIF, BMP, TIFF) to adjust brightness

-100 0 100

Brightness adjustment (-100 = darkest, 0 = original, 100 = brightest)

Choose output format or keep original. PNG recommended for maximum quality

Output quality for lossy formats (JPEG, WebP). Higher = better quality but larger file size

Key Facts

Category
Design
Input Types
file, range, select, number
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

Easily enhance your photos with our Image Brightness Adjustment tool, designed to help you fix underexposed images or create artistic lighting effects with precise, real-time control.

When to Use

  • •Correcting photos that appear too dark or underexposed due to poor lighting conditions.
  • •Adjusting the overall mood of an image by increasing or decreasing its brightness levels.
  • •Preparing images for web or print by optimizing exposure and output quality settings.

How It Works

  • •Upload your image file (JPEG, PNG, WebP, GIF, BMP, or TIFF) to the tool.
  • •Use the brightness slider to adjust the exposure level from -100 (darkest) to 100 (brightest).
  • •Select your preferred output format and quality settings if you need to convert or compress the file.
  • •Download your adjusted image directly to your device.

Use Cases

Fixing dark indoor photos taken without a flash.
Standardizing the brightness of product images for an e-commerce catalog.
Creating high-key or low-key artistic effects for social media content.

Examples

1. Correcting Underexposed Portrait

Social Media Manager
Background
A portrait taken in a dimly lit restaurant looks too dark to post.
Problem
The subject's face is obscured by shadows, making the photo unusable.
How to Use
Upload the photo and increase the brightness slider to +30.
Example Config
brightness: 30, format: original
Outcome
The subject's features are clearly visible and the overall lighting appears natural.

2. Optimizing Product Images

E-commerce Seller
Background
Product photos appear dull and need a brighter, cleaner look for the website.
Problem
The images lack the professional 'pop' required for high-conversion product pages.
How to Use
Upload the product image, set brightness to +20, and export as PNG for maximum quality.
Example Config
brightness: 20, format: png, quality: 100
Outcome
The product appears vibrant and professional, ready for upload to the store.

Try with Samples

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Web Image Processing Rust Samples
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macOS Image Processing Objective-C Samples
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FAQ

What image formats are supported?

The tool supports JPEG, PNG, WebP, GIF, BMP, and TIFF formats.

Can I preview the changes before downloading?

Yes, the tool provides real-time feedback as you adjust the brightness slider.

Does adjusting brightness affect image quality?

Minor adjustments are generally lossless, but you can control the output quality for lossy formats like JPEG and WebP to balance file size and clarity.

Is there a file size limit?

Yes, the maximum file size for uploads is 10MB.

Can I convert my image to a different format?

Yes, you can choose to keep the original format or convert your file to JPEG, PNG, or WebP.

API Documentation

Request Endpoint

POST /en/api/tools/image-brightness

Request Parameters

Parameter Name Type Required Description
imageFile file (Upload required) Yes Upload any image file (JPEG, PNG, WebP, GIF, BMP, TIFF) to adjust brightness
brightness range No Brightness adjustment (-100 = darkest, 0 = original, 100 = brightest)
format select No Choose output format or keep original. PNG recommended for maximum quality
quality number No Output quality for lossy formats (JPEG, WebP). Higher = better quality but larger file size

File type parameters need to be uploaded first via POST /upload/image-brightness 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-image-brightness": {
      "name": "image-brightness",
      "description": "Adjust image brightness levels with real-time preview and precise control",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=image-brightness",
      "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]