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Bulk generate strong, random passwords with custom rules. Perfect for secure multi-account management.
Click the button to start batch generation
Overview
Understand what the tool solves, how it works, and the boundaries of its data.
Choose a password length from 4 to 64 characters, then enable any combination of uppercase letters, lowercase letters, numbers, and symbols. Each enabled group contributes at least one character; remaining positions are selected from the combined enabled groups and the characters are shuffled. If all groups are disabled, the tool cannot make a valid password. The default length is 16 with all four groups enabled.
You can also exclude visually similar characters I, l, 1, O, and 0. This changes the available character pool, which can make copying or manually reading a generated password easier. The batch quantity is bounded by the maximum displayed for the current account. Each generated row has a strength label based on a simple length-and-character-category score.
Password characters are selected using the browser’s cryptographic random-value facility. The W3C Web Cryptography specification describes getRandomValues as generating cryptographically strong random values. That property does not establish that an account is protected against phishing, malware, unsafe storage, service breaches, or weak recovery controls.
The displayed “weak,” “fair,” “good,” or “strong” tag is a heuristic based on password length and how many character categories appear. It does not test whether a password is common or exposed in a breach, and it does not validate a particular website’s policy. NIST guidance treats length as a primary factor and cautions that composition rules alone have limits.
getRandomValues; checked September 28, 2026.Guide
Follow the workflow and verify inputs and outputs with practical examples.
Choose 4–64 characters. Check the receiving service’s own maximum and permitted symbols before generating a large batch.
Enable the groups allowed by the destination: uppercase, lowercase, numbers, and symbols. Every selected group is represented at least once in each password. Turn on the ambiguous-character option to remove I, l, 1, O, and 0.
Set the batch count within the displayed limit. Changing the length, groups, exclusion option, or count generates a new batch, so copy or download the current batch before changing settings.
Copy a single row or the full list, or download TXT for a simple line-separated list. CSV includes a row number, password, and heuristic strength label.
For example, if a service rejects symbols, disable that group and generate again; do not edit a password by hand and assume it retains the same random properties. A test database can use generated values to exercise form and import behavior. For real accounts, assign a distinct password to each account and store and deliver credentials through an approved secure workflow.
Use cases
See how the tool fits into real work and everyday tasks.
A QA team can produce a batch that matches a test field’s length and character restrictions, then import the TXT or CSV output into a controlled test dataset.
An administrator preparing initial credentials can generate a separate value for each account, check for repeats, and deliver each secret using the organization’s approved credential-sharing process.
A support or operations team can use TXT for one-password-per-line workflows or CSV when row numbers and the visible heuristic label help review the batch.
Q&A
Find concise answers to common questions and confusing cases.
No. The label is a simple heuristic based on length and character categories. It does not check breach corpora, common-password lists, or a service’s requirements.
No. Each password is generated independently and a duplicate is possible. Check the batch when uniqueness is a requirement.
The page regenerates the batch when the length, selected character groups, ambiguous-character setting, or batch count changes. Save the previous output before adjusting options.
Only when required for compatibility with the destination. NIST guidance emphasizes length and does not recommend universal composition rules; use the receiving service’s current policy rather than treating the category controls as a security standard.
Notes
Review scope, result limitations, and important precautions before use.
A strong random string does not protect an account from phishing, malware, reuse, insecure delivery, or a compromised service. The strength label is not a security rating, breach scan, or policy check. The tool does not guarantee a unique batch, and the length control permits values as short as four characters for compatibility testing; that minimum is not a recommendation for an account password. Check the destination’s rules, generate unique values, and save real credentials in an organization-approved password manager or other secure system. Avoid leaving exported secrets in shared folders or unattended downloads.
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