DevToolbox - All-in-One Developer Tools

About

All the developer tools you need, in a single lightweight extension. No more juggling multiple tabs or installing separate plugins.

**Built-in Tools:**

**Timestamp Converter**
- Convert between Unix timestamps and human-readable dates instantly
- Auto-detect seconds (10-digit), milliseconds (13-digit), microseconds (16-digit), and nanoseconds (19-digit)
- View results in ISO 8601, RFC 2822, UTC, and custom timezones
- Right-click any selected text to convert timestamps directly on the page

**Base64 Encoder/Decoder**
- Encode and decode Base64 strings with one click
- Copy results to clipboard instantly

**URL Encoder/Decoder**
- Encode and decode URL components with special character handling
- Perfect for debugging query strings and API parameters

**JSON Formatter**
- Full-page split view with collapsible tree and syntax highlighting
- Smart search with auto-expand matching nodes
- Extract and format JSON from any webpage with "From Page"
- Beautify, minify, and copy with one click

**Hash Generator**
- Generate MD5, SHA-1, and SHA-256 hashes instantly
- One-click copy for easy comparison

**Color Converter**
- Convert between HEX, RGB, and HSL color formats
- Live color preview swatch

**Regex Tester**
- Test regular expressions with real-time match highlighting
- Support for global, case-insensitive, and multiline flags

**Screenshot Capture**
- Capture visible area or full-page screenshots
- Download as PNG or copy to clipboard

**Key Features:**
- All tools work 100% offline — no data is sent anywhere
- Bilingual support — auto-switches between English and Chinese based on browser language
- Clean, minimal popup with search and category filters
- Right-click context menu for quick timestamp conversion
- No account required, no ads, no tracking

Perfect for developers, API testers, DevOps engineers, and anyone who works with data regularly.