Professional Development Tools
Efficient online utilities for text processing and number conversion. Each tool is designed for specific development tasks, with examples and technical documentation.
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CSS Gradient Generator
Input: Select colors & type
↓ Generate CSS
background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
Key Features
- Linear, radial & conic gradients
- Multiple color stops support
- Browser compatibility modes
- Live preview & instant code
CSS & JavaScript Minifier
Input: .button { background: #007bff; }
↓ Minify
.button{background:#007bff}
Key Features
- CSS & JavaScript minification
- Advanced JS optimization options
- Bulk file processing
- Code analysis & statistics
Cron Expression Generator
Input: Every Monday at 9am
↓ Generate Expression
0 9 * * 1
Key Features
- Visual cron expression builder
- Common patterns library
- Expression validator
- Next run time calculator
Color Theory & Code Converter
Input: #007BFF
↓ Multiple Formats
RGB: rgb(0, 123, 255)
HSL: hsl(211, 100%, 50%)
CMYK: cmyk(100%, 52%, 0%, 0%)
Key Features
- Color code conversion (HEX, RGB, HSL, CMYK)
- Color theory & harmonies
- WCAG contrast checker
- Tints and shades generator
JSON Formatter
Input: {"name":"John","age":30}
↓ Format & Validate
{
"name": "John",
"age": 30
}
Key Features
- Format & validate JSON data
- Tree view visualization
- Convert to CSV/XML/YAML
- Syntax highlighting
Text Manipulation
Input: snake_case_variable
↓ Title Case Convert
Output: Snake Case Variable
Key Features
- Case conversion with intelligent handling
- Advanced text cleaning and formatting
- Real-time character and word counting
- Secure client-side processing
Password Generator
Settings: Length=12, All Characters
↓ Generate Password
Output: K#9mP$vL2&nX
Key Features
- Customizable password length
- Character type selection
- Password strength indicator
- One-click copy function
Number Converter
Input: 255 (Decimal)
↓ Multi-Base Convert
Output: FF (Hex) | 11111111 (Binary)
Key Features
- Multi-base number conversion
- Step-by-step conversion process
- Scientific notation support
- Common base quick convert
Base64 Encoder/Decoder
Input: Hello, World!
↓ Base64 Encode
Output: SGVsbG8sIFdvcmxkIQ==
Key Features
- Text and file encoding
- URL-safe Base64 support
- Instant encoding/decoding
- Drag & drop file support
Hash Generator
Input: Hello, World!
↓ SHA-256
dffd6021bb2bd5b0af676290809ec3a53191dd81c7f70a4b28688a362182986f
Key Features
- Multiple hash algorithms (MD5, SHA-1, SHA-256, etc.)
- File integrity verification
- Real-time hash generation
- Drag & drop file support
Bulk Image Resizer
Input: Multiple Images
↓ Resize & Compress
Output: Resized and Compressed Images
Key Features
- Resize and compress multiple images at once
- Support for JPEG, PNG, and WebP formats
- Quality control for compression
- Batch processing with preview
Technical Details
CSS & JS Minification
- Standard CSS compression
- Terser JavaScript optimization
- Variable name mangling
- Dead code elimination
Cron Expression Tools
- UNIX cron format support
- Quartz scheduler compatibility
- Human-readable translations
- Timezone support
Text Processing
- UTF-8 character support
- Regular expression capabilities
- Batch processing support
- Real-time character counting
Number Systems
- 32-bit integer support
- Floating-point precision
- Base 2-36 conversion
- Scientific notation
Base64 Processing
- Standard Base64 encoding
- URL-safe encoding variant
- File to Base64 conversion
- Unicode text support
Hash Generation
- Multiple hash algorithms
- Large file support
- Progress tracking
- Instant text hashing
Password Generation
- Cryptographically secure RNG
- Custom character set support
- Real-time strength analysis
- NIST guideline compliance
Color Tools
- Multiple color format support
- WCAG 2.1 contrast checking
- Color harmony generation
- Real-time color conversion
JSON Processing
- Multi-format validation
- Syntax error detection
- Pretty print formatting
- Cross-format conversion
Bulk Image Resizer
- Processing: Client-side JavaScript using HTML5 Canvas API
- Supported Formats: JPEG, PNG, WebP (input/output)
- Max File Size: 50MB per image
- Features:
- Batch processing with preview
- Proportional resizing with aspect ratio maintenance
- Format conversion with quality control
- Smart compression for different formats
- ZIP download for processed images
- Browser Requirements: Modern browsers with File API and Canvas support
- Privacy: All processing happens locally, no server uploads
Frequently Asked Questions
Yes, all tools are completely free to use with no registration required. There are no hidden fees, or premium features - everything is freely available to everyone.
All our tools process data directly in your browser using JavaScript. We don't store, collect, or transmit any of your input data to our servers. Your information never leaves your device, ensuring complete privacy and security.
Our tools work on all modern browsers including Chrome, Firefox, Safari, and Edge. We recommend keeping your browser updated to the latest version for the best experience and security.
Currently, our tools require an internet connection to load. However, once loaded, many tools can continue to function offline as they run entirely in your browser.
No, there are no usage limits. You can use our tools as much as you need. However, for very large data sets, the processing speed may depend on your device's capabilities.
Our password generator uses JavaScript's Crypto API to ensure cryptographically secure random generation. The tool runs entirely in your browser, meaning generated passwords are never transmitted or stored anywhere.
A strong password should be at least 12 characters long, include a mix of uppercase and lowercase letters, numbers, and special characters. Our generator follows NIST guidelines and provides real-time strength assessment to ensure maximum security.
Yes, you can fully customize your passwords by specifying length, including/excluding uppercase letters, lowercase letters, numbers, and special characters. You can also exclude specific characters that might not be allowed in certain systems.
Base64 encoding is commonly used to transmit binary data over text-based systems, encode email attachments, create data URIs for images, and handle API authentication tokens. It converts binary data into a safe ASCII string format.
Standard Base64 uses '+' and '/' characters which can cause issues in URLs. URL-safe Base64 replaces these with '-' and '_' respectively, making it safe for use in URLs, filenames, and other contexts where special characters might be problematic.
Our color tool supports HEX, RGB, HSL, HSV, and CMYK formats. You can easily convert between these formats and generate harmonious color combinations. All conversions follow industry standards for maximum accuracy.
WCAG (Web Content Accessibility Guidelines) contrast checking ensures text remains readable against its background. Our tool calculates contrast ratios according to WCAG 2.1 standards, helping you meet accessibility requirements for web content.
Color harmonies are predefined color relationships based on the color wheel. Our tool generates complementary, split-complementary, triadic, tetradic, and analogous color schemes, helping you create visually appealing color combinations for your designs.
Yes! You can share any color or combination using the share button. This generates a unique URL that preserves your exact color settings. You can also easily copy individual color codes in any format with a single click.
The tool supports JPEG, PNG, and WebP formats. Each format is handled differently:
- JPEG: Uses quality-based compression
- PNG: Uses lossless compression with resolution adjustment
- WebP: Combines features of both with modern compression
The main limitations are:
- Maximum file size: 50MB per image
- Processing speed depends on device capability
- Browser memory limits total batch size
- WebP support depends on browser version
A cron expression is a string of fields that describe the schedule for automated tasks. Our cron generator helps you create and validate these expressions without memorizing the syntax. It supports standard cron format and includes features like next execution time prediction.