Item logo image for Code Diff Tool

Code Diff Tool

ExtensionDeveloper Tools
Item media 2 (screenshot) for Code Diff Tool
Item media 1 (screenshot) for Code Diff Tool
Item media 2 (screenshot) for Code Diff Tool
Item media 1 (screenshot) for Code Diff Tool
Item media 1 (screenshot) for Code Diff Tool
Item media 2 (screenshot) for Code Diff Tool

Overview

A modern code comparison tool that supports single file comparison and folder comparison

This is a 100% local, secure visual code and folder diff tool for developers. It has NO backend server and makes NO network requests (No fetch/XHR). ### 1. How to Test 1. Click the extension icon to open the popup. 2. Code Snippet Diff: Go to "Code Diff", paste text into the Left and Right inputs, and click "Compare". It instantly shows line-by-line and word-by-word visual differences (Green for additions, Red for deletions). 3. Folder Comparison: Go to "Folder Diff", click "Select Left Folder" and "Select Right Folder" to upload two local directories. It will recursively map out the file tree and list file statuses (Modified, Added, or Deleted). Click a modified file to view the detailed code diff. ### 2. Security & Code Transparency - 100% Local Execution: All file reading and text diffing algorithms run strictly client-side within the local browser memory. User source code never leaves their machine. - No Obfuscation: All proprietary JavaScript code is completely unminified, non-obfuscated, and human-readable for easy line-by-line review. - Third-Party Library: We bundled a local copy of the official open-source "jsdiff" library (libs/diff.min.js) for the diffing algorithm. No remote CDNs are loaded. (Official repo: https://github.com/kpdecker/jsdiff). - Manifest V3 Compliance: No high-risk or sensitive tracking permissions are requested. No dynamic code execution (No eval).

0 out of 5No ratings

Learn more about results and reviews.

Details

  • Version
    1.1.0
  • Updated
    July 4, 2026
  • Offered by
    tzzxqsz
  • Size
    72.78KiB
  • Languages
    17 languages
  • Developer
    Email
    tzzxqsz@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

Related

DeepDOM - Technical SEO & Render Debugger

5.0

Audit the modern web stack. Compare SSR vs. CSR, trace redirect loops, and validate Schema all from the DOM.

File Safe

5.0

Secure document storage with encryption and folder management

Compare PDF

5.0

Easily compare PDF documents and files online with our utility. This PDF diff tool lets you compare and highlight file differences.

Diff Checker

4.7

Online diff checker to compare text, code and files side by side. Syntax highlighting, Prettier formatting, and AI diff summaries

HTML Diff Check Tool

4.4

Tool for checking HTML difference between tabs ,or between production and development environment.

Diff Checker

1.0

Diffchecker will compare text to find the difference between two text files. Just paste your files and click Find Difference!

Markdown Preview

0.0

Beautiful markdown file preview with syntax highlighting, multiple themes, and GitHub Flavored Markdown support

Security Headers

0.0

Security headers checker with letter grade, severity levels, batch scan, site compare, fix snippets, and shareable report card.

CodePrettify: JS, JSON, CSS & RSS Formatter

5.0

A fast, IDE-like viewer for raw JSON, code, and data files: format, validate, fold, search, diff, and inspect.

File Guard (Encryptor | Decryptor)

5.0

Encrypt or decrypt any file with just one click inside your browser!

Source Code Viewer

5.0

Displays and downloads the HTML, CSS, and JavaScript source code of the current page. Now with accurate file sizes and modern UI.

Source Detector

5.0

A powerful tool for developers to automatically detect, collect, and analyze source maps and CRX files from websites

DeepDOM - Technical SEO & Render Debugger

5.0

Audit the modern web stack. Compare SSR vs. CSR, trace redirect loops, and validate Schema all from the DOM.

File Safe

5.0

Secure document storage with encryption and folder management

Compare PDF

5.0

Easily compare PDF documents and files online with our utility. This PDF diff tool lets you compare and highlight file differences.

Diff Checker

4.7

Online diff checker to compare text, code and files side by side. Syntax highlighting, Prettier formatting, and AI diff summaries

HTML Diff Check Tool

4.4

Tool for checking HTML difference between tabs ,or between production and development environment.

Diff Checker

1.0

Diffchecker will compare text to find the difference between two text files. Just paste your files and click Find Difference!

Markdown Preview

0.0

Beautiful markdown file preview with syntax highlighting, multiple themes, and GitHub Flavored Markdown support

Security Headers

0.0

Security headers checker with letter grade, severity levels, batch scan, site compare, fix snippets, and shareable report card.

Google apps