Calculator tool
A strong password uses uppercase, lowercase, numbers, and symbols. Password entropy = log2(charset^length). 128 bits of entropy (20+ mixed characters) is considered extremely secure.
Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.
How long should a password be?
At least 12 characters for everyday accounts, 16+ for important accounts. Use a password manager to generate and store unique passwords for each site.
Base64 Encode / Decode
Encode plain text to Base64 or decode Base64 strings to readable text.
Open toolURL Encode / Decode
Encode special characters into percent-encoded URL format or decode them back to plain text.
Open toolBandwidth Calculator
Calculate how long it takes to transfer a file at a given bandwidth, or what bandwidth you need.
Open tool