Developer Tools

Regex Tester

Developer Tools

Key Features Common Regex Patterns Email Validation Pattern:^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$ Matches: [email protected], [email protected] Use for: Form validation, email extraction Phone Number (US) Pattern:^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$ Matches: (555) 123-4567, 555-123-4567, 5551234567 Use for: Phone validation, data cleaning URL Validation Pattern:^https?://[^\s]+$ Matches: https://example.com, http://site.org/path Use for: Link validation, URL extraction IPv4 Address Pattern:^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$ Matches: 192.168.1.1, 10.0.0.255 Use for: Network […]

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Port Reference Database

Developer Tools, Network Tools

Key Features Most Common Ports Port 80 – HTTP Protocol: TCPService: Hypertext Transfer ProtocolUse: Web traffic (unencrypted) Common for: Web servers, APIs, unencrypted websites Port 443 – HTTPS Protocol: TCPService: HTTP over TLS/SSLUse: Secure web traffic Common for: Secure websites, encrypted APIs, e-commerce Port 22 – SSH Protocol: TCPService: Secure ShellUse: Remote server access Common

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Markdown Preview

Developer Tools

Key Features Markdown Syntax Guide Basic Formatting Advanced Features Common Use Cases 📄 Documentation ✍️ Content Writing 💬 Communication 🎓 Education Markdown Best Practices ✅ Best Practices ❌ Avoid These Frequently Asked Questions What is Markdown? Markdown is a lightweight markup language created by John Gruber in 2004. It uses plain text formatting syntax that

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JWT Token Decoder

Developer Tools, Security Tools

Key Features Understanding JWT Structure A JWT consists of three Base64URL-encoded parts separated by dots: header.payload.signature. Each part contains specific information about the token. Header Purpose: Token metadataContains: Algorithm (alg), token type (typ) Example: Payload Purpose: Claims and dataContains: User info, permissions, expiration Example: Signature Purpose: Verification and integrityContains: Encrypted hash of header + payload

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GUID/UUID Generator

Developer Tools

Key Features UUID/GUID Formats UUID v4 (Random) Method: Cryptographically secure random generationUniqueness: 122 random bits (extremely high)Collision Risk: Effectively zero Best for: General-purpose unique identifiers, database primary keys, session IDs Example:f47ac10b-58cc-4372-a567-0e02b2c3d479 UUID v1 (Time-based) Method: Timestamp + MAC address + clock sequenceUniqueness: Time-ordered, traceable to machineCollision Risk: Very low with proper implementation Best for: Distributed

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Multi-Format Encoder/Decoder

Developer Tools, Network Tools

Key Features Supported Encoding Formats Convert between Base64, Hexadecimal, and Binary formats seamlessly. The tool automatically detects your input format and provides all available output formats with one-click copying. Base64 Encoding Format: Standard & URL-SafeCharacters: 64 printable ASCII charactersSize: +33% overhead Best for: Email attachments, data URIs, API authentication, JSON payloads Example:SGVsbG8gV29ybGQh Hexadecimal Format: Base-16

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