More online tools:

JSON Tools

• JSON Formatter
• JSON Formatter (Vertical)
• JSON Formatter (Horizontal)
• JSON Online Compress & Escape
• Generate C# Class from JSON
• Generate Java Class from JSON
• Generate Go Struct from JSON
• Convert SQL to Java Class
• Convert JSON to XML and Vice Versa
• Convert Excel/CSV to JSON
• Convert JSON to Excel/CSV
• Convert JSON to GET Parameters and Vice Versa
• Convert JSON to YAML

Formatting & Conversion

• HTML Formatting/Compression
• CSS Formatting/Compression
• JS Formatting/Compression
• JS Encryption/Decryption
• JS Code Obfuscation & Encryption
• SQL Formatting/Compression
• PHP Code Formatter
• XML Formatting/Compression
• C# Code Formatter
• Java Code Formatter
• SQL Code Formatter
• Python Code Formatter
• Ruby Code Formatter
• C Language Code Formatter
• C++ Code Formatter
• Perl Code Formatter
• VBScript Formatter
• HTML to JS
• HTML/JS Conversion
• HTML Escape Tool
• HTML to C#/JSP
• HTML to PHP Code
• HTML to ASP/Perl
• Excel to HTML Table
• HTML Table Generator
• HTML/UBB Conversion
• HTML/Markdown Conversion
• Regular Expression Tester
• Regular Expression Code Generator
• HTML Filter Tool
• Common Regular Expressions
• Regular Expression Syntax Quick Reference
• Run JS/HTML/CSS
• XPath Tool

Encryption & Encoding

• MD5 Encryption Tool
• URL to Hex Encryption
• Thunder URL Encryption/Decryption
• Base64 Encryption/Decryption
• Escape Encryption/Decryption
• Symmetric Encryption/Decryption
• AES Encryption/Decryption
• DES Encryption/Decryption
• RC4 Encryption/Decryption
• Rabbit Encryption/Decryption
• TripleDES Encryption/Decryption
• SHA/SHA256 Encryption
• Hash Encryption Collection
• Morse Code Encryption/Decryption
• Password Generator
• UUID Generator
• GUID Generator
• htpasswd Generator
• Barcode Generator
• IP/Number Conversion
• Image to Base64
• UTF-8 to GBK
• Unicode/ASCII Conversion
• ASCII Encoding/Decoding
• URL Encoding/Decoding
• Native/Unicode Encoding Conversion
• KeyCode Keyboard Key Codes
• Android Key Codes
• Keyboard Test Tool

Text & Numbers

• Online HTML Editor
• Automatic Article Formatting
• Article Content Collection
• Simplified/Traditional Chinese Conversion
• Convert Chinese Characters to Pinyin
• Martian Language Converter
• Text Content Replacement
• Text Content Comparison
• Online Word Count Tool
• Vertical Text Tool
• Text Flipping Tool
• Content De-duplication Tool
• Text Effect Tool
• String Text Compression Tool
• Camel Case & Underscore Conversion
• Full-Width/Half-Width Conversion
• English Letter Case Conversion
• RMB Uppercase Conversion Tool
• Random Number Generator
• Unix Timestamp Converter
• Common Base Conversion Tool
• RGB Color Converter

Network

• IP Address Lookup
• WebSocket Tester
• Get Browser Information
• Public DNS
• Public DNS in Various Regions
• Telecom DNS in Various Regions
• Unicom DNS in Various Regions
• Mobile DNS in Various Regions
• Tietong DNS in Various Regions
• Educational Network DNS
• US DNS

Webmaster Tools

• WeChat Domain Checker
• Convert htaccess to nginx
• Generate Desktop Shortcut
• Convert px to rem
• Create Online Favicon
• Generate Webpage Meta Tags
• Online URL Auto-Refresh
• Online Color Palette
• Website Gzip Compression Check
• Dead Link Checker
• Whois Lookup Tool
• Meta Tag Optimization Analysis
• Webpage Keyword Density Checker
• HTTP Status Code Lookup

Calculation

• Online Interest Rate Calculator
• Subnet Mask Calculator
• Online Scientific Calculator
• Area Converter
• Calorie Converter
• Volume Converter
• Pressure Converter
• Power Converter
• Length Converter
• Temperature Converter
• Time Converter
• Speed Converter
• Angle Converter
• Data Size Converter
• Density Converter
• Force Converter

Others

• Online Doodle Board
• Online Clock
• World Time
• World Capitals Lookup
• World Currencies Lookup
• World Area Codes and Time Differences
• World Festivals Lookup
• Distribution of Ethnic Minorities in China
• Chinese Historical Dynasties Timeline
• Special Symbols List

Reference Lists

• Common User-Agent Strings
• Content-Type Reference Table
• Request Methods Collection
• HTTP Header Collection
• HTTP Status Codes
• ASCII Reference Table
• HTML Special Character Escapes
• Common Port Numbers
• Bootstrap Font Icons
• Android Manifest Permissions
• Common Linux Commands