Tech Tools & Utilities
Essential tools and calculators for developers, system administrators, and tech professionals. From algorithm analysis to data conversion, find the right tool for your technical needs.
Algorithm Analysis
Big O Calculator
Analyze algorithm complexity and compare performance
Free to use
Document Generator
CPF/CNPJ Generator
Generate valid CPF and CNPJ numbers for testing and development
Free to use
Document Validation
CPF/CNPJ Validator
Validate Brazilian CPF and CNPJ documents using official algorithms
Free to use
Text Styling
Text Style Generator
Generate fancy text styles and fonts for social media
Free to use
Pattern Matching
Regex Tester
Test and debug regular expressions with examples
Free to use
Encoding
Base64 Tool
Encode and decode text and files to/from Base64
Free to use
Data Format
JSON Formatter
Format, validate and minify JSON with syntax highlighting
Free to use
Security
Password Generator
Generate secure passwords with strength analysis
Free to use
Cryptography
Hash Generator
Generate MD5, SHA-256 and other cryptographic hashes
Free to use
Data Storage
Data Unit Converter
Convert between bytes, KB, MB, GB, TB and more
Free to use
Web Development
URL Encoder/Decoder
Encode and decode URLs with component analysis
Free to use
Design
Color Converter
Convert between HEX, RGB, HSL, and other color formats
Free to use
Why Use Our Tech Tools?
Developer-Focused
Built by developers for developers, with features that matter in real-world scenarios.
Privacy-First
All processing happens in your browser. Your data never leaves your device.
Always Free
No subscriptions, no limits. Use all tools completely free forever.
Popular Use Cases
Web Development
- • Test regex patterns for form validation
- • Encode/decode URLs for API requests
- • Format and validate JSON responses
- • Generate secure passwords for applications
- • Generate and validate CPF/CNPJ for Brazilian systems
- • Create fancy text for social media content
System Administration
- • Convert data units for storage planning
- • Generate hashes for file integrity
- • Analyze algorithm performance
- • Encode files for secure transmission
- • Convert colors for design systems
- • Validate document formats and structures