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Format, validate & beautify JSON
Generate QR codes from any text or URL
Decode and inspect JWT tokens
Build and understand cron expressions visually
Convert between Unix timestamps and dates
Convert between Simplified and Traditional Chinese
Calculate monthly mortgage payments & amortization
Calculate your Body Mass Index instantly
Calculate percentages, ratios & percentage change
Generate strong, random passwords instantly
Convert between HEX, RGB & HSL color formats
Encode and decode Base64 text and files
Encode and decode URLs and query strings
Generate SHA-1, SHA-256, SHA-384 & SHA-512 hashes
Compress images in your browser without uploading
Generate UUID v4 and ULID identifiers instantly
Format, validate & beautify JSON
Generate QR codes from any text or URL
Convert between Unix timestamps and dates
Calculate your Body Mass Index instantly
Calculate percentages, ratios & percentage change
Calculate exact age in years, months & days
Generate strong, random passwords instantly
Calculate sale prices, savings & discount percentages
Convert times between different time zones
Check password strength and security level
Validate credit card numbers using Luhn algorithm
Count days until or since any date
Check current time in major cities worldwide
Find international dialing codes by country
Generate valid test credit card numbers
Convert internationalized domain names to Punycode