Developer Tools& Calculators
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Developer Tools
JSON Formatter
Format, minify, and validate JSON
Base64 Encode/Decode
Encode and decode Base64 text
UUID Generator
Generate v4 UUIDs in bulk
URL Encode/Decode
Encode and decode URL components
Timezone Converter
Convert times between timezones
Epoch Converter
Seconds since Jan 1, 1970
Regex Tester
Test regex with live highlighting
Hash Generator
MD5, SHA-1, SHA-256, SHA-512
JWT Decoder
Decode JSON Web Tokens
Color Converter
HEX, RGB, HSL with preview
Cron Parser
Explain cron in plain English
Markdown Preview
Live Markdown to HTML
Lorem Ipsum
Generate placeholder text
Diff Checker
Compare two texts visually
HTML Entity Encoder
Encode/decode HTML entities
CSS Minifier
Minify or beautify CSS
Password Generator
Strong random passwords
QR Code Generator
Text/URL to QR code
JSON ↔ YAML
Bidirectional conversion
SQL Formatter
Format & beautify SQL
Chmod Calculator
Unix file permissions
HTTP Status Codes
Searchable reference
Browser Info
User agent, screen, timezone
Slug Generator
URL-friendly text
CSV ↔ JSON
Bidirectional conversion
JS Minifier
Minify or beautify JS
Case Converter
camelCase, snake_case & more
Text Reverser
Reverse strings & words
Number Base
Binary, octal, hex
ASCII Art
Text to block letters
JSON to TypeScript
Generate TS interfaces from JSON
Regex Library
Common regex patterns to copy
HTML to JSX
Convert HTML to React JSX
Git Command Generator
Build git commands visually
Env Variable Manager
Parse, edit & diff .env files
API Request Builder
Test HTTP APIs (mini-Postman)
Tailwind Class Sorter
Sort Tailwind CSS classes
Docker Compose Generator
Build docker-compose.yml visually
Crontab Generator
Visual cron expression builder
SQL to NoSQL
Convert SQL to MongoDB/DynamoDB
CSS Gradient Generator
Build beautiful CSS gradients
Box Shadow Generator
Visual CSS box-shadow builder
Flexbox Playground
Interactive flexbox visualizer
CSS Grid Generator
Visual CSS Grid layout builder
Border Radius Generator
Visual corner radius editor
CSS Animation Generator
Keyframe animation builder
Font Pair Suggester
Curated Google Fonts pairings
Image to Base64
Convert images to/from Base64
Image Resizer
Resize, compress & convert images
Color Palette Extractor
Extract dominant colors from images
Favicon Generator
Generate favicons in all sizes
SVG Optimizer
Minify & optimize SVG files
Screenshot Mockup
Place screenshots in device frames
SSL Certificate Decoder
Parse SSL/TLS certificate details
CSP Header Generator
Build Content-Security-Policy headers
CORS Header Builder
Generate CORS configuration
Subnet Calculator
IP subnet & CIDR calculations
Port Reference
Common port numbers & services
Nginx Config Generator
Build nginx.conf visually
.htaccess Generator
Apache redirect & rewrite rules
Text to Speech
Read text aloud with voice controls
Emoji Picker
Browse & copy emojis by category
String Escape/Unescape
Escape for JSON, HTML, URL, SQL, Regex, CSV
Markdown Table Generator
Build markdown tables visually
Whitespace Visualizer
Show spaces, tabs & line endings
README Generator
Build README.md with badges & sections
Placeholder Text
Lorem Ipsum & alternative styles
Calculators & Utilities
Mortgage Calculator
Monthly payments + amortization
Unit Converter
Length, weight, temp, speed, data
Percentage Calculator
X% of Y, % change, and more
BMI Calculator
Body Mass Index metric/imperial
Tip Calculator
Bill split with custom tip
Word Counter
Words, chars, reading time
Compound Interest
Investment growth calculator
Loan Calculator
Payments + amortization
Age Calculator
Exact age from birthday
Date Difference
Days between two dates
Scientific Calculator
Full-featured calculator
Currency Converter
Live exchange rates for 20+ currencies
Tax Calculator
Income tax estimation (US & Canada)
Retirement Calculator
Savings projections with inflation
ROI Calculator
Return on investment analysis
Discount Calculator
Sale price, savings & discount %
GPA Calculator
Grade point average on 4.0 scale
Matrix Calculator
Multiply, transpose, determinant
Statistics Calculator
Mean, median, mode, std dev & more