Try Online Install 中文

Developer Toolbox

Full browser support including Chrome / Edge / etc., dual-mode flexible switching, instant popup access for quick tasks, fullscreen web mode for deep operations, all-in-one developer tools to eliminate constant tab switching

Try Online Install 中文

Two Usage Modes

🚀 Quick Popup Mode

Click the browser toolbar icon to quickly open it. Perfect for temporary use and small tasks. Includes 6 core tools: Timestamp Converter, Base Converter, Hash Calculator, Password Generator, Base64 Encoder/Decoder, and JSON Formatter.

🌐 Fullscreen Web Mode

Use in a standalone web page for more complete features and better interactive experience. Includes 6 advanced tools: JSON Formatter (with history), Timestamp Converter, Base64 Encoder/Decoder, JWT Decoder, Text Processor, and Color Converter.

Quick Popup Mode Tools

🕒 Timestamp Converter

  • Real-time Unix timestamp display
  • Convert between timestamp and datetime
  • Supports seconds and milliseconds
  • Multiple timezone conversion support
  • Pause/start real-time timestamp update

🔢 Base Converter

  • Convert between binary, octal, decimal, and hexadecimal
  • Automatically filters invalid characters
  • Realtime conversion with Enter shortcut
  • One-click copy all base results

🔐 Hash Calculator

  • MD5, SHA1, SHA256, and SHA512
  • Support SM3 Chinese national cryptographic algorithm
  • Instantly compute all hashes while typing
  • One-click copy for any hash result
  • Local computation only, no data sent to servers

🔑 Password Generator

  • Configurable length from 1 to 128
  • Choose digits, uppercase, lowercase, and symbols
  • Generate multiple passwords at once
  • One-click copy all generated passwords

📝 Base64 Encode/Decode

  • Support Base64, Unicode, URL, UTF16 encoding
  • Instant encoding and decoding
  • Real-time result display as you type
  • Quickly clear input and output
  • One-click copy result

📋 JSON Formatter

  • Automatic formatting and syntax validation
  • Support JSON minify to a single line
  • Line numbers in input for easier debugging
  • Smart formatting support
  • Jump to fullscreen mode for more features

Fullscreen Web Mode Tools

🔐 JWT Decoder

  • Decode JWT Header and Payload
  • Beautiful JSON formatted output
  • Option to show Header or Payload
  • One-click copy decoded result
  • Real-time decoding without button clicks

📄 Text Processor

  • Sort text ascending, descending, or reverse
  • Filter spaces, newlines, empty lines
  • Trim leading and trailing spaces
  • Character escaping support
  • Remove duplicate lines

🎨 Color Converter

  • Support HEX, HEXA, RGB, RGBA, HSL formats
  • Built-in color picker from page
  • Real-time conversion as you type
  • Quick color examples provided
  • Color preview with large display

Installation

🛒 Method 1: Install from Web Store

Recommended for easy installation with automatic updates

Chrome Chrome Web Store Edge Edge Add-ons
  1. Click the browser store link above
  2. Click "Add to Chrome" or "Get" button
  3. Confirm in the popup dialog
  4. After installation, click the toolbar icon to start using

📦 Method 2: Offline Package Installation

Suitable for offline environments or unable to access Chrome Web Store

  1. Download the extension ZIP package: Click to download
  2. Extract the ZIP file to a local directory
  3. Open browser, go to extensions management page:
    • Chrome: Enter chrome://extensions/Copied in address bar
    • Edge: Enter edge://extensions/Copied in address bar
  4. Enable "Developer mode" toggle (top right)
  5. Click "Load unpacked" button
  6. Select the extracted extension directory and confirm installation
  7. After installation, the extension icon will appear in the toolbar
Tip:For convenience, we recommend pinning the extension to the toolbar for quick access.

Product Features

Modern UI

Modern design with responsive layout

Dark Theme

Support automatic and manual dark/light theme switching

Multi-language

Support Chinese, English, Japanese, Korean, and more

Input Validation

Robust input validation and error handling

Local Computation

All calculations done locally, no data sent to servers

Cross-browser

Support Chrome, Edge, Opera, Brave and other mainstream browsers

Data Persistence

Auto-save form data and JSON history

Right-click Menu

Quick access to tools via context menu

JSON Rendering

Auto-identify and beautify page JSON

Smart Settings

Personalized configuration like data retention, feature toggles