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Batch Password Generator

Used by developers, writers, and creators worldwide.

A batch password generator solves the tedious, error-prone task of creating dozens of secure credentials by hand. Security engineers, sysadmins, and QA teams use it to provision employee accounts, seed test databases, or verify that an auth system handles different character sets correctly. Generating passwords one at a time simply doesn't scale. This tool produces up to 50 unique passwords per run, entirely in your browser — nothing touches a server. You control three inputs: how many passwords to generate, how long each should be, and which character set to use. Options range from letters-only (for legacy systems that reject symbols) to the full letters-plus-numbers-plus-symbols mix that modern security policies require.

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How to use

  1. Choose your options above
  2. Click Generate
  3. Copy your result

Detailed instructions

  1. Set the Count field to the number of passwords you need, up to 50 per batch.
  2. Set the Length field to match your password policy — 16 is a solid default for most use cases.
  3. Choose a Character Set: use letters plus numbers plus symbols unless a legacy system restricts special characters.
  4. Click Generate to produce the full list instantly in your browser.
  5. Select all output text, copy it, and paste directly into your spreadsheet, import template, or password manager.

Use Cases

  • •Provisioning 30 temporary credentials for a company onboarding sprint
  • •Seeding a Postgres staging database with randomised test user passwords
  • •Generating letters-only passwords for a legacy system that rejects symbols
  • •Supplying workshop attendees with pre-generated lab credentials via a CSV
  • •Populating a Cypress or Jest auth test suite with varied password fixtures

Tips

  • →Set length to 20+ when generating passwords for service accounts or API integrations where a human never types them.
  • →If a target system rejects your pasted password, switch the character set to letters plus numbers — many older systems silently block symbols like quotes or backslashes.
  • →Generate two batches back-to-back and spot-check for accidental duplicates before using in production; true collisions are rare but worth ruling out for large provisioning runs.
  • →Pair this generator with a spreadsheet: Column A for usernames, Column B for passwords pasted from here, then export as CSV for one-click bulk import into most identity systems.
  • →For workshop or training labs, use length 12 and letters plus numbers only — easier to type manually if participants need to enter credentials on unfamiliar devices.

FAQ

are batch-generated passwords safe to use for real accounts

Yes — the generator uses your browser's built-in cryptographic random source, not the predictable Math.random(). Nothing is sent to a server, so the passwords never appear in a log or network request. Copy them straight into a password manager like Bitwarden or 1Password, which both support bulk CSV import.

what password length should I set for most use cases

NIST recommends at least 12 characters for standard accounts and 16 or more for admin or privileged accounts. For service accounts and API keys where memorability doesn't matter, 20–32 characters is common. The default 16-character length covers the majority of modern password policies.

which character set option should I pick

Letters + numbers + symbols gives the highest entropy and is the right choice for most modern systems. Switch to letters + numbers if your target system rejects symbols — some legacy databases and older SaaS tools do. Letters-only is rarely appropriate unless you're working with a constrained legacy system.