Tools
Word / Character Counter
Hash GeneratorQR Code GeneratorPassword GeneratorUUID Generator
Base64 Encoder/DecoderURL Encoder/DecoderHTML Encoder/DecoderUnicode Encoder/DecoderASCII Encoder/Decoder
JSON ViewerCSV ViewerMarkdown ViewerJWT ViewerDiff Viewer
JSON → YAMLJSON → XMLJSON → TypeScriptJSON → CSVYAML → JSONImage ConverterCSV → JSON
Finance
Severance Pay Calculator
Daily
Date CalculatorD-Day Calculator100-Day Anniversary CalculatorRelationship Days CalculatorTime CalculatorPercentage CalculatorRatio CalculatorAverage CalculatorDiscount Calculator
Health
BMI CalculatorBMR CalculatorDaily Calorie CalculatorBody Fat CalculatorWater Intake Calculator
Study
GPA CalculatorExam Average Calculator
Utility
Unit ConverterArea CalculatorVolume CalculatorSpeed Calculator

Password Generator

Generate secure random passwords with customizable length, character types, and quantity.

4128
StrengthVery Strong

About Password Security

A secure password should have sufficient length and a mix of character types. • At least 12 characters recommended • Mix uppercase, lowercase, numbers, and symbols • Avoid dictionary words, birthdays, or phone numbers • Use a unique password for each site This tool uses crypto.getRandomValues() for cryptographically secure random number generation.

Password Strength Criteria

• Weak: under 40 bits (8 chars or fewer, single type) • Fair: 40–59 bits (8–11 chars, 2+ types) • Strong: 60–79 bits (12–15 chars, 3+ types) • Very Strong: 80+ bits (16+ chars, all 4 types)

FAQ

How long should my password be?
At least 12 characters, ideally 16+. GPU-based brute force can crack 8-character passwords in minutes, but 16+ characters makes it virtually impossible.
Are the generated passwords secure?
This tool uses the browser's Web Crypto API (crypto.getRandomValues). Nothing is sent to any server — all generation happens locally in your browser.
Do I need special characters?
Special characters increase the charset size and thus entropy. However, increasing length is more effective. A 20-character alphanumeric password is far stronger than an 8-character password with all character types.