Free Online Tools "HaruTools Lab"

Image Mosaic & Blur Tool

Protect your privacy easily right in your browser. Supports batch processing for multiple images.

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Drag & Drop Images Here

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What is the Image Mosaic & Blur Tool?

This tool is a free online application designed to easily apply mosaic or blur effects to photos, allowing you to hide personal information such as faces, license plates, and addresses. No installation is required, and you can use it instantly from any mobile or desktop browser.

High-Quality Processing & Algorithm Explanation

This tool utilizes an algorithm that averages image pixel data across specific grid blocks and redraws them. Unlike simple filters, it visually obscures information while maintaining the image's native data structure, making it perfect for social media posts or professional document preparation. Furthermore, all conversion processes run locally using the browser's Canvas API, ensuring extremely fast and secure processing.

Key Features of This Tool

Step-by-Step Instructions

  1. Drag and drop the images you want to edit into the area above, or click the "Select Files" button to choose your files.
  2. Adjust the "Intensity" slider. Higher numbers will result in a coarser, stronger mosaic.
  3. Click the "Apply Effect" button to apply the changes.
  4. Click the "Save All" button or click individual images to download your processed photos.

Frequently Asked Questions (FAQ)

Q. Are there any usage fees?

A. No, all features are completely free to use.

Q. Are my uploaded images saved on a server?

A. No, they are not. This tool operates entirely on the client side (within your browser), meaning your data is never transmitted externally.

Q. What is the difference between mosaic and blur?

A. This tool uses a method that groups and averages pixels into block-like shapes. Setting a lower intensity creates a natural "blur" look, while higher settings produce a digital, blocky "mosaic" appearance.

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