Tools
Handy, privacy-first utilities. All processing happens locally in your browser.
Age Calculator
Calculate your exact age in years, months, days, and even seconds.
Certificate Decoder
Decode and inspect SSL/TLS certificates. View details like common name, issuer, validity, and more.
Certificate Key Matcher
Verify if a private key matches a certificate. Ensure your SSL files are a valid pair.
Chmod Calculator
Calculate Linux file permissions in octal and symbolic notation.
Cron Expression Editor
Quick and simple editor for cron schedule expressions.
CSR Decoder
Decode Certificate Signing Requests (CSR). Verify your CSR content before submitting it to a CA.
Data Units Converter
Convert between KB, MB, GB, TB, bits, and more data storage units.
ETH Vanity Address
Generate custom Ethereum addresses with your desired prefix or suffix.
IP Calculator / IP Subnetting
Calculate network details from IP address and CIDR notation.
Password Generator
Generate strong, secure passwords or memorable passphrases instantly.
QR Code Generator
Generate customizable QR codes for URLs, text, WiFi, and more.
Split Bill Calculator
Easily split food delivery bills including delivery fees and discounts.