Image Black & White

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Drag and drop images here, or click to select files

Supports JPG, PNG, WebP, GIF formats with customizable B&W effects

About Image Black & White Tool

Introduction

Image Black & White Tool is a free online image processing tool that supports grayscale conversion and binarization. It offers 6 preset effects with adjustable brightness, contrast, and threshold parameters. Supports batch processing and multiple output formats. All processing is done locally in your browser — no files are uploaded to any server.

Features

  • Supports both grayscale and binarization modes
  • 6 preset effects with manual fine-tuning
  • Adjustable brightness, contrast, and binarization threshold
  • PNG, JPG, and WebP output formats
  • Batch processing with ZIP download
  • Browser-based processing — no file uploads

How to Use

  1. 1Select a preset effect or manually adjust parameters
  2. 2Drag images to the upload area or click to select files
  3. 3The system processes and displays results automatically
  4. 4Download individual images or batch download as ZIP

FAQ

What is the difference between B&W and grayscale?
Grayscale preserves gray transitions, B&W uses threshold to split pixels into pure black or white binary images.
What B&W algorithms are supported?
Three classic algorithms: Luminance, Average, and Lightness methods, each with distinct visual effects.
Can I adjust the threshold?
Yes, adjustable threshold slider to freely set the B&W dividing point with real-time preview.
Does it support batch processing?
Supports batch upload and processing, handle multiple images at once.
What is the output format?
Supports PNG, JPG, and WebP output formats, selectable.

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