Privacy & Random

Calculate the exact total number of possible password combinations from character pool size and length.

Estimate effective throughput after VPN encryption overhead.

Estimate the approximate number of hashes needed for a 50% chance of collision using the birthday bound.

Estimate breach cost from number of records and an average cost per record.

Generate strong random passwords with browser cryptography.

Generate memorable passphrases from a bundled word list.

Estimate password strength locally without sending it anywhere.

Generate random integers in a chosen range.

Pick a random name or item from your list using a fair, uniform shuffle.

Split a list of names into random teams.

Roll dice for games, classrooms, and quick simulations.

Flip a fair virtual coin using cryptographically secure randomness.

Redact emails, phone numbers, URLs, and custom words locally.

Generate random hex, RGB, and HSL colors.

Generate placeholder Lorem Ipsum text locally, by word, sentence, or paragraph.

Generate random username ideas locally, combining adjectives, nouns, and numbers.

Pick a random item from a list with a simple wheel-style result.

Generate a starter set of common security headers for static sites.

Generate a starter Content-Security-Policy header.

Generate an HTTP Strict-Transport-Security header.

Generate a simple SPF TXT record from include, ip4, ip6, or mx mechanisms.

Generate a simple DMARC TXT record from policy and report address.

Estimate approximate collision probability for random IDs using the birthday bound.

Calculate one-time-password validity window from step size and allowed drift.

Estimate allowed requests in a period from rate limit and window size.

Estimate backup verification coverage from backups, sample size, and checks per month.

Estimate password entropy and calculate exact keyspace size from length and character set size.

Estimate brute-force time from keyspace size and guesses per second.

Calculate exact PIN combinations and entropy from digit count.

Estimate passphrase entropy from word count and word-list size.

Calculate exact one-time backup-code search space from code count, length, and alphabet size.

Calculate exact keyspace size and entropy for any length and alphabet size.

Calculate refresh timing from token lifetime and safety buffer.

Estimate active session window from idle timeout and absolute timeout.