KivTools Navigator

JSON Tools

• JSON Formatter
• JSON → TypeScript, Zod & Pydantic
• Mock Data Generator
• Data Lab: CSV / JSON / Parquet SQL
• Data Recipe Studio
• JSON Diff & Patch
• JSONPath Tester
• JSON Formatter (Vertical)
• JSON Formatter (Side-by-side)
• JSON Minify & Escape
• JSON to C# Class
• JSON to Java Class
• JSON to Go Struct
• SQL to Java Class
• JSON ↔ XML
• CSV / Excel to JSON
• JSON to CSV / Excel
• JSON ↔ Query Parameters
• JSON to YAML

Format & Convert

• HTML Format / Minify
• CSS Format / Minify
• JavaScript Format / Minify
• Code Workspace (Monaco + Prettier)
• Mermaid Diagram Studio
• JavaScript Encrypt / Decrypt
• JavaScript Obfuscator
• SQL Format / Minify
• PHP Formatter
• XML Format / Minify
• C# Formatter
• Java Formatter
• SQL Formatter
• Python Formatter
• Ruby Formatter
• C Formatter
• C++ Formatter
• Perl Formatter
• VBScript Formatter
• HTML to JavaScript
• HTML ↔ JavaScript
• HTML Escape
• HTML to C# / JSP
• HTML to PHP
• HTML to ASP / Perl
• Excel to HTML Table
• HTML Table Generator
• HTML ↔ UBB
• HTML ↔ Markdown
• Regex Tester
• Regex Code Generator
• HTML Filter
• Common Regex Patterns
• Regex Syntax Reference
• Run JavaScript / HTML / CSS
• XPath Tool

Encoding & Crypto

• MD5 Hash Generator
• URL Hex Encode
• Base64 Encode / Decode
• Escape Encode / Decode
• Symmetric Encrypt / Decrypt
• AES Encrypt / Decrypt
• DES Encrypt / Decrypt
• RC4 Encrypt / Decrypt
• Rabbit Encrypt / Decrypt
• TripleDES Encrypt / Decrypt
• SHA / SHA-256 Hash
• Hash Algorithms
• Morse Code Encode / Decode
• Password Generator
• UUID Generator
• GUID Generator
• htpasswd Generator
• Barcode Generator
• IP / Integer Conversion
• Image to Base64
• UTF-8 to GBK
• Unicode / ASCII Converter
• ASCII Encode / Decode
• URL Encode / Decode
• Native / Unicode Converter
• Keyboard Key Codes
• Android Key Codes
• Keyboard Tester

API & Security

• OpenAPI Explorer
• OpenAPI Validator
• OpenAPI Diff & Breaking Changes
• OpenAPI Docs Studio
• API Response Validator
• JSON Schema Validator
• JWT Inspector & Generator
• JWT / JWK Pro Verifier
• OIDC Config & PKCE
• PEM / Certificate / JWK Inspector
• Webhook Signature Tester
• CSP & Security Headers
• API Request Security Check
• cURL ⇄ Fetch ⇄ Axios
• HTTP Header Reference
• JSON Formatter

Text & Numbers

• HTML Editor
• Content Extractor
• Text Replace
• Text Diff
• Word Count
• Vertical Text
• Text Flip
• Duplicate Content Check
• Text Effects
• String Minifier
• Camel Case ↔ Snake Case
• Full-width / Half-width Converter
• Letter Case Converter
• Random Number Generator
• Unix Timestamp Converter
• Base Converter
• RGB Color Converter

Network

• IP Geolocation Lookup
• WebSocket Tester
• Browser Information
• Public DNS
• US DNS

Web Ops

• .htaccess to Nginx
• Cron Expression Parser
• ENV Parser & Validator
• Log Parser & Analyzer
• Docker Compose Validator
• Dockerfile / CI / Kubernetes Check
• HAR File Analyzer
• Technical SEO HTML Inspector
• Desktop Shortcut Generator
• rem ↔ px Converter
• ICO Icon Generator
• Meta Tag Generator
• Timed URL Refresh
• Color Palette
• Gzip Compression Check
• Broken Link Check
• WHOIS Lookup
• Meta Tag Analyzer
• Keyword Density Check
• HTTP Status Lookup

Calculators

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

Utilities

• Online Drawing Board
• Online Clock
• World Time
• World Capitals
• World Currencies
• Country Codes & Time Zones
• World Holidays
• Special Characters
• Today in History

Reference

• Common User-Agent
• Content-Type Reference
• HTTP Request Methods
• HTTP Header Reference
• HTTP Status Codes
• ASCII Reference
• HTML Character Escapes
• Common Ports
• Bootstrap Icons
• Android Manifest Permissions
• Common Linux Commands