T-Tools Online Tool Suite
JSON parsing, encryption, formatting, QR codes & 100+ online tools
T-Tools is a completely free online tool suite platform designed for developers, designers, webmasters, and everyday users. We offer 100+ practical tools covering JSON parsing, encryption/decryption, code formatting, QR code generation, webmaster tools, financial calculators, and more. All tools work directly in your browser without any downloads or installations, ensuring your data privacy and security. Whether you need to quickly format code, generate QR codes, perform encryption, or calculate mortgage and taxes, T-Tools provides convenient and efficient solutions. Our goal is to make professional-grade tools accessible to everyone, boosting work efficiency at no cost.
Why Choose T-Tools?
100% Free
All tools are completely free to use with no hidden charges, registration, or login required.
Privacy First
All data processing happens locally in your browser. Your data never leaves your device.
Multi-Language Support
Available in English, Chinese, Japanese, and Portuguese for global accessibility.
No Installation
Works directly in your browser — no downloads, no installations, no plugins required.
JSON Parser
Validate, format, compress, escape & unescape JSON
JSON Compress
Remove redundant chars, escape special chars
JSON Viewer
Hierarchical JSON data editor & viewer
JSON/XML Converter
Bidirectional XML and JSON conversion
JSON Diff
Compare two JSON objects side by side
JSON to Entity
JSON to C#/Java/Go entity classes
JSON Minify
Compress JSON to single line
JSON to C#
JSON to C# class objects
JSON to Go
JSON to Go language structs
JSON to TypeScript
JSON to TypeScript interfaces
JSON Path
Query data using JSONPath
JSON Split View
Side-by-side JSON parsing
Encrypt/Decrypt
AES/DES/RC4 symmetric encryption
MD5 Hash
MD5 hash digest calculation
SHA Hash
SHA-1/SHA-256/SHA-512 hashing
Base64 Codec
Base64 encoding & decoding
Image to Base64
Convert image files to Base64 strings
Radix Converter
Binary/Octal/Decimal/Hex conversion
Hex-Text Converter
Hex string to text and vice versa
URL Encoder
URL encoding & decoding
HTML Encoder
HTML entity encoding & decoding
Unicode Codec
Unicode encoding & decoding
ASCII Converter
ASCII code to character conversion
UTF-8 Converter
UTF-8 encoding viewer & converter
JS Obfuscator
JavaScript code encryption & obfuscation
Morse Code
Morse code encoding & decoding
JS Formatter
JavaScript code formatting & compression
CSS Formatter
CSS style formatting & compression
XML Formatter
XML code formatting & compression
SQL Formatter
SQL statement formatting & compression
HTML Formatter
HTML code formatting & compression
JS Obfuscator
JavaScript code obfuscation
JSON Formatter
JSON data beautify & compress
Color Picker
Color selection & palette tool
Color Converter
HEX/RGB/HSL color conversion
Traditional Colors
Chinese & Japanese traditional color palette
Image Color Picker
Extract colors from images
Image Compressor
Online image compression
Image Converter
Online image format conversion
Image Resizer
Online image resize tool
Regex Tester
Regular expression online testing
Regex Generator
Common regex pattern generator
Chinese Converter
Simplified ↔ Traditional Chinese
Pinyin Tool
Chinese character to Pinyin lookup
Fullwidth Converter
Fullwidth ↔ Halfwidth character conversion
Timestamp Converter
UNIX timestamp ↔ date conversion
HTML Escape
HTML special character escaping
RMB Converter
Numeric amount to Chinese RMB words
Word Counter
Online word & character counting
JS/HTML Converter
JS and HTML code conversion
UUID Generator
Online UUID/GUID generator
QR Generator
Universal QR code generator
QR Decoder
QR code image decoder
QR Beautifier
QR code style customization
vCard QR
vCard business card QR code
URL QR Code
URL link QR code generator
WiFi QR Code
WiFi connection QR code
Phone QR Code
Phone number QR code
Email QR Code
Email address QR code
SMS QR Code
SMS message QR code
Text QR Code
Plain text QR code
HTTP Client
API endpoint testing tool
URL Shortener
Long URL shortening service
URL Restorer
Restore shortened URLs
DNS Lookup
Domain DNS record lookup
IP Lookup
IP address location lookup
Whois Lookup
Domain registration info lookup
TDK Checker
Page Title/Description/Keywords checker
HTTP Status Codes
HTTP status code reference
Robots.txt Gen
Robots.txt file generator
Sitemap Gen
Sitemap XML generator
Meta Tag Gen
HTML Meta tag generator
OpenGraph Gen
OpenGraph social tag generator
Page Source
Online webpage source viewer
URL Parser
URL parameter parser & builder
.htaccess Gen
Apache .htaccess file generator
Date Calculator
Calculate days between dates
Lunar Calendar
Lunar ↔ Solar calendar converter
Stopwatch
Online stopwatch timer
Countdown Timer
Online countdown timer
Solar Terms
24 Solar Terms lookup
Beijing Time
Standard Beijing time display
World Clock
World timezone clock display
Zip Code Lookup
Postal code query tool
Area Code Lookup
Telephone area code query
Calculator
Online scientific calculator
Random Generator
Random number & password generator
Password Generator
Secure random password generator
Text Dedup
Remove duplicate lines from text
Find & Replace
Batch text find & replace
Base Converter
Numeric base conversion
Color Picker
Screen color picker tool
Mortgage Calculator
Commercial mortgage payment calculator
Housing Fund Loan
Housing fund loan calculator
Combo Loan
Combined loan calculator
Equal Principal
Equal principal repayment calculator
Equal Payment
Equal installment repayment calculator
Prepayment
Loan prepayment calculator
Loan Comparison
Repayment method comparison
Income Tax
Personal income tax calculator
Salary Calculator
After-tax salary calculator
Deposit Interest
Deposit interest calculator
Car Loan
Auto loan calculator
Social Insurance
Social security & housing fund calculator
Investment Return
Investment return calculator
Currency Exchange
Currency exchange rate converter
VAT Calculator
Value-added tax calculator
File Diff
File content difference comparison
JWT Decoder
JWT token decode & parse
Cron Generator
Cron expression generator
Regex Tutorial
Regex learning reference
Markdown Editor
Markdown online editor & preview
Code Highlight
Code syntax highlighting
ASCII Art
ASCII art text generator
Lorem Generator
Lorem Ipsum placeholder text generator