Password Generator
Generate strong random passwords or memorable passphrases using cryptographically secure randomness in your browser.
Local processingSecurity & Utilities
Passwords, hashes, QR codes, and privacy utilities. (8)
What these security & utility tools cover
Generate and check passwords or passphrases, generate random strings with secure randomness, calculate file checksums (SHA-256/512) to compare with a publisher’s digest, create or read QR codes (including Wi-Fi/email/phone payloads), convert colors and check contrast, and inspect screen/browser information for display troubleshooting.
How to choose a security or utility tool
Need a new secret → Password Generator; evaluate an existing password → Password Strength; opaque tokens → Random String; verify a download → File Checksum; share a link offline → QR Generator; scan a code → QR Reader; design colors → Color Converter; debug layout → Screen Info.
Processing notes
Password and checksum work runs in the browser. QR Reader may use the camera with your permission; review decoded URLs before opening them.
Password Strength Checker
Check the length, variety, common patterns, and estimated strength of a password directly in your browser.
Local processingRandom String Generator
Generate cryptographically secure hexadecimal, alphanumeric, or URL-compatible random strings. Choose a preset or define your own character set.
Local processingFile Checksum Calculator
Calculate a SHA-256 or SHA-512 checksum for a local file and compare it with a value supplied by the file publisher.
Local processingQR Code Generator
Create QR codes for URLs, plain text, Wi-Fi, email, and phone numbers. Export PNG or SVG locally.
Local processingQR Code Reader
Read a QR code from an image or your device camera. View the decoded text or address before choosing whether to open it.
Local processingColor Converter and Contrast Checker
Convert colors between HEX, RGB, HSL, and HSV and check text contrast against WCAG requirements.
Local processingScreen and Browser Information
View the browser's visible area, screen resolution, device pixel ratio, language, time zone, and User-Agent information to help investigate display issues.
Local processing