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Developer Tools

Essential calculators and converters for developers

11
Developer Tools
4
Encoding Tools
2
Network Tools
3
Security Tools
Number Base Converter
Developer
熱門
Convert numbers between different bases (binary, decimal, hex, octal)
HTTP Status Code Reference
Developer
Quick reference for HTTP status codes
URL Encoder / Decoder
Developer
新
Encode and decode URL components and query strings locally
JWT Decoder
Developer
新
Decode JWT headers, payload claims, and expiration timestamps locally
JSON Formatter / Validator
Developer
新
Format, minify, and validate JSON locally in your browser
Base64 Encoder/Decoder
Developer
Encode and decode Base64 strings
Hex Converter
Developer
Convert between hexadecimal and other formats
CIDR Calculator
Developer
新
Calculate IP ranges and subnet masks
Hash Generator
Developer
Generate MD5, SHA-1, SHA-256 hashes
Disk Partition Calculator
Developer
Calculate optimal disk partition sizes
Timestamp Converter
Developer
Convert between Unix timestamps and dates
Developer Tips

Encoding Conversion

Use Base64, Hex, URL, and JWT utilities for local data inspection and encoding workflows

Network Calculation

CIDR calculator helps with subnet planning and IP address management

Hash Algorithms

Generate secure hashes for data integrity and password verification

Time Processing

Convert Unix timestamps for accurate time handling across timezones

Technical Note

All conversions and calculations are performed locally in your browser for maximum security and privacy

Your Privacy is Protected

All calculations are performed locally in your browser. We do not store or transmit your data.