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Password Generator

Random password generator with selectable length (4 to 128 characters) and character classes (upper, lower, digits, symbols, or a custom set). Default symbol set is !@#$%^&*?; optional modes include pronounceable output, exclusion of ambiguous characters (0, O, l, I, 1), and bulk generation of up to 20 passwords at once. Also validates existing passwords against the configured rules and produces a strength report; all generation runs in the browser.

Runs entirely in your browser

This tool sends nothing over the network. Everything you enter is processed on your device and never reaches our servers.

Privacy
Security
IT
Authentication
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Reference

Documentation

A password generator creates random passwords in the browser according to a configurable set of rules, and can validate an existing password against those same rules, without sending anything typed into it to a server.

Password length and the character classes included, uppercase, lowercase, numbers, symbols, or a custom character set, determine how much entropy the result carries and which policy or risk profile it satisfies. A custom character set restricts generation to exactly the characters a target system accepts.

Pronounceable mode generates a consonant-vowel pattern that reads more easily while still meeting the selected rules; numbers and symbols can still be added to raise entropy beyond what the base pattern provides. Excluding ambiguous characters removes look-alikes, 0, O, l, I, and 1, from the output, which matters when a password will be typed or read aloud rather than pasted.

Bulk generation produces a table of multiple passwords from one set of rules rather than one password at a time, useful when provisioning several accounts at once. Validating an existing password runs it against the same requirement checks used for generation and returns a strength rating alongside a detailed Requirements Report. The keyboard shortcuts Ctrl/Cmd+G to generate and Ctrl/Cmd+C to copy, when the output is not focused, work without reaching for the mouse.

A fast, client-side password generator addresses common security tasks, from day-to-day account creation to policy compliance.

  • Protect personal, work, and developer accounts by creating unique, high-entropy passwords that reduce reuse and credential-stuffing risk.
  • Meet password policy requirements by selecting minimum length, character classes, and custom sets for regulated environments.
  • Improve adoption with pronounceable options that remain random while reading more easily for nontechnical users.
  • Provision classrooms, labs, staging servers, and temporary test accounts with bulk password generation and one-click copy.
  • Audit strength quickly with the four-level strength meter and the detailed Requirements Report that flags missing criteria.
  • Rotate credentials on a fixed schedule by regenerating and copying new values to maintain good hygiene.

Onboarding, API key turnover, and periodic audits all run without exposing a secret to a remote service, since generation, validation, and storage stay entirely within the browser.

The strength meter reports one of four ratings, Poor, Weak, Better, or Strong, based on estimated entropy from character diversity and length. The Requirements Report shows which checks pass or fail: length thresholds, the presence of uppercase and lowercase letters, numbers and symbols, and the absence of repetition and predictable sequences. Raising strength generally means increasing length, adding character types, or switching to a custom character set built for a specialized system.

A high-security admin password sets 20 to 24 characters with uppercase, lowercase, numbers, and symbols, reaching a Strong rating. A readable Wi-Fi password uses pronounceable mode with length kept at 14 to 16 characters and numbers included for extra variety. Ten temporary passwords for a workshop come from bulk generation with a count of 10, each value copied from the table into a secure password manager. A custom set for a legacy system restricts symbols to those the system accepts, with the output validated against the report afterward.

Yes. Generation and validation both run entirely in the browser; no data is sent to a server, which limits exposure and protects privacy.

Strength comes from length and character variety together: combining uppercase, lowercase, numbers, and symbols while avoiding patterns, sequences, and repetition, and using a unique password for every account.

A consonant-vowel pattern improves readability while still meeting the selected rules; numbers and symbols can be added on top of that pattern to raise entropy.

Yes. Setting a minimum length, choosing required character classes, and defining custom characters, then checking the Requirements Report, verifies compliance before deployment.

Inputs, outputs, and what the Password Generator computes

What the Password Generator asks for and what it returns, as a plain list. Defaults, units, and ranges are the ones the form loads with.

Inputs

  • Generated password (text input)
  • Password Length (numeric input) · default: 8 · range: 4 to 128
  • Uppercase (A-Z) · default: on
  • Lowercase (a-z) · default: on
  • Numbers (0-9) · default: on
  • Symbols (!@#$%^&*?) · default: on
  • Pronounceable Passwords · default: off
  • Exclude Ambiguous Characters (0, O, l, I, 1) · default: off
  • Use Custom Character Set · default: off
  • Custom Characters (text input)
  • Bulk Generation · default: off
  • Count (numeric input) · default: 5 · range: 2 to 20
  • Show Requirements Report · default: off

Controls

Generate Secure Password · Copy · Reset

Example

A high-security admin password sets 20 to 24 characters with uppercase, lowercase, numbers, and symbols, reaching a Strong rating.