A curated collection of useful tools for developers and content creators
📝 Text Processing
📊 Text Statistics
Analyze text and get comprehensive statistics including character count, word count, and LLM token estimation. Perfect for content writing and API planning.
- 8 different text metrics
- LLM token estimation
- Reading time calculation
🔤 Case Converter
Convert text between different case formats including camelCase, snake_case, kebab-case, and more. Essential for developers working with different naming conventions.
- 15 different case formats
- Grid layout for easy comparison
🎨 ASCII Text Drawer
Convert text into ASCII art using various fonts. Perfect for creating banners, headers, and decorative text for documentation or terminal applications.
- Multiple ASCII art fonts
- Clean, responsive interface
📻 NATO Alphabet Converter
Convert text to NATO phonetic alphabet for clear communication. Essential for radio communications, spelling out information, and military/aviation contexts.
- 6 different output formats
- Handles letters, numbers, and special characters
😀 Emoji Picker
Browse emojis with search and category filtering. Perfect for social media, messaging, and content creation.
- Category-based browsing
- Search by emoji name
- 500+ emojis across all categories
🔧 Encoding & Formatting
🔐 Base64 Encoder/Decoder
Encode and decode Base64 strings with optional URL-safe mode. Essential for data encoding, API integration, and secure data transmission.
- Standard and URL-safe Base64 encoding
- Bidirectional conversion (encode/decode)
- Unicode and special character support
- Error handling for invalid input
🌐 URL Encoder/Decoder
Encode and decode URLs and text for safe transmission over the internet. Essential for web development and API work.
- Manual encode/decode controls
- Error handling for invalid input
🏷️ HTML Entities Escape/Unescape
Escape and unescape HTML entities for safe web content display. Essential for web development, preventing XSS attacks, and handling special characters.
- Bidirectional conversion (escape/unescape)
- Handles common and numeric entities
📋 JSON Validator & Formatter
Validate, format, and minify JSON with detailed error messages. Complete JSON tool with vertical layout and advanced formatting options.
- Validation with error details
- Sort keys alphabetically option
- Customizable indentation (2 spaces, 4 spaces, tabs)
- Format and minify operations
🔄 JSON to YAML Converter
Convert between JSON and YAML formats with bidirectional conversion. Essential for configuration files and data interchange between different systems.
- Bidirectional conversion (JSON ↔ YAML)
- Pretty formatting option
- Error handling for invalid input
🔒 Security & Analysis
🔒 Hash Text
Generate cryptographic hashes for any text using various algorithms. Useful for data integrity verification, password hashing, and security applications.
- 7 hash algorithms (MD5, SHA1, SHA256, SHA512, SHA3-256, SHA3-512, RIPEMD160)
- Secure client-side processing
🔑 X.509 Certificate Decoder
Decode and analyze X.509 certificates in PEM format. Extract certificate details, validity periods, and security information.
- PEM certificate parsing
- Certificate field extraction
- Security information display
🔍 URL Parser
Parse and analyze URL components including protocol, host, path, query parameters, and fragments. Perfect for debugging and URL analysis.
- Extract all URL components
- Query parameter table view
⚙️ System Administration
🔧 Chmod Calculator
Calculate Unix file permissions in octal and symbolic notation. Essential for system administration and file security.
- Interactive permission checkboxes
- Octal and symbolic notation display
- Bidirectional conversion
- Common permission examples
⏰ Crontab Generator
Generate cron expressions with visual interface and human-readable descriptions. Perfect for scheduling tasks and automation.
- Visual dropdown interface
- Human-friendly descriptions
- Common scheduling patterns
🌐 IPv4 Subnet Calculator
Calculate IPv4 subnet information from CIDR notation with comprehensive network details. Essential for network administration and planning.
- Complete subnet information
- Network and broadcast addresses
- Host range and count calculations
- Binary subnet mask display
🛠️ Utilities
🌡️ Temperature Converter
Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine scales. Essential for scientific calculations and international communication.
- 4 temperature scales (°C, °F, K, °R)
- Interactive scale switching
⏱️ Chronometer
Precise stopwatch and timer with lap functionality. Perfect for timing activities, workouts, or any time-sensitive tasks.
- Millisecond precision timing
- Start, pause, stop, and reset controls
- Lap time recording with individual durations
- Responsive design for mobile use
🌍 World Clock
Display multiple timezone clocks simultaneously. Perfect for coordinating across time zones, scheduling international meetings, or tracking global time.
- Multiple timezone display with updates
- Add/remove timezones with easy selection
- Shows date, time, and timezone information
- 35+ major cities and timezones included
📱 Device Information
Display comprehensive information about your device, browser, and screen. Includes advanced user agent parsing and AI capabilities detection.
- Screen size and orientation details
- Browser vendor and platform info
- Editable user agent parsing
- AI capabilities detection (Chrome's built-in AI)
📊 Mermaid Diagram Editor
Create and edit Mermaid diagrams with live preview and interactive controls. Perfect for creating flowcharts, sequence diagrams, and other visual documentation.
- Diagram rendering with updates
- Multiple diagram types (flowchart, sequence, gantt, pie, class)
- Zoom and pan controls for large diagrams
- Example templates for quick start
🖼️ File Analysis
🖼️ PNG Metadata Checker
Extract and analyze metadata from PNG files with drag and drop support. View image properties, textual data, timestamps, and technical information.
- Drag and drop file upload
- Complete PNG metadata extraction
- Image properties and color information
- Textual data with formatted display
📷 EXIF Extractor
Extract and analyze EXIF metadata from JPEG images with drag and drop support. View camera settings, timestamps, and technical photography information.
- Drag and drop JPEG upload
- Complete EXIF data extraction
- Camera settings and exposure info
- JPEG segment analysis
- Unit Tests - JavaScript unit tests for the developer tools.
More tools coming soon…