The short answer
- Best overall: the generator in the password manager you already trust and use, provided it creates random values and saves them to the correct account.
- Best free manager-backed option reviewed: Bitwarden, because its official documentation provides password and passphrase generation across its apps and a no-account web generator.
- Best installed offline option reviewed: KeePassXC, for users who want a local encrypted database plus password and passphrase generation on Windows, macOS, or Linux.
- Best built-in option: Apple Passwords for Apple users or Google Password Manager in Chrome, because generation and saving happen during signup.
- Best standalone option on this site: Generate My Password when you need transparent local generation, unusual formats, or no account. It does not store or autofill the result.
- Best offline memorable method: physical dice with the EFF Diceware list.
Free password generators compared
| Option | Best for | Key tradeoff |
|---|---|---|
| Your trusted password manager | Most new account passwords | Best workflow when it generates, stores, and autofills; trust and recovery depend on the chosen manager. |
| Bitwarden | Free manager-backed generation | Password and passphrase modes plus storage integration; generated-item history behavior should be understood. |
| KeePassXC | Installed offline password software | Local encrypted database and configurable generation; the user is responsible for database backups and device security. |
| Apple Passwords | Apple devices and Safari | Strong generation, saving, and AutoFill in the Apple ecosystem; less useful outside it. |
| Google Password Manager | Chrome users | Generates and saves during account creation; tied to the user’s Chrome and Google Account workflow. |
| Generate My Password | Standalone local generation and exact formats | No account and many controls, but no vault, cross-device sync, or automatic storage. |
| Installable password generator app | Offline PWA after first load | Reopens without a network connection but intentionally does not store generated passwords. |
| Downloadable offline generator | Auditable single-file local use | No installation or remote dependencies; saving the generated result remains your responsibility. |
| Physical Diceware | Offline memorable passphrases | Verifiable physical randomness, but slower and requires careful recording and storage. |
Password generator software: which type should you use?
“Software” can mean four different workflows. Installed password-manager software is usually the strongest default because it can generate, store, and autofill the same credential. Browser- or operating-system tools reduce setup when you already use their ecosystem. An installable web app can work offline without maintaining a vault. A downloadable standalone generator handles unusual policies or isolated machines but leaves storage entirely to you.
KeePassXC documents a local encrypted database and separate password and passphrase generator, including character-set controls and browser integration. Bitwarden documents generator access in its web, browser, desktop, mobile, and command-line clients. This site’s installable app and downloadable offline generator cover generation without a vault; neither should be mistaken for password-management software.
Do you want to use a program or write one?
“Password generator program” has two common meanings. If you want a ready-made program, compare the installed, installable, and downloadable options above. If you want source code for a class project or your own application, use a language-specific guide instead of copying an unknown executable or a non-cryptographic example.
- Python password generator using the standard-library
secretsmodule - Java password generator using
SecureRandom - JavaScript password generator using Web Crypto in browsers and
crypto.randomInt()in Node.js - Command-line password generator for Bash, PowerShell, macOS, Linux, and Windows
- Password-generating algorithm guide for unbiased selection, required character groups, shuffling, entropy, and tests
How we evaluated “best”
No generator wins every use case. We scored the workflow rather than the brand name using six questions:
- Random source: does the documented process use cryptographic or physical randomness rather than ordinary pseudorandom helpers?
- Storage: can the result be saved immediately under the correct domain and username?
- Autofill: can users avoid repeated clipboard transfers and manual transcription?
- Formats: are random-character passwords, passphrases, and compatibility controls available?
- Transparency: does the provider document how generation works, what is stored, and what account is required?
- Cost: is useful password generation available without payment?
Why a password-manager generator usually wins
Generation is only the first step. A strong result still fails if it is lost, reused, pasted into the wrong site, or saved without the matching username and domain. A manager-backed generator can keep creation, storage, and autofill in one flow. Bitwarden documents generator access in its browser, desktop, mobile, web, and command-line clients. Apple and Google similarly document generation plus saving during account creation. See the current steps in our Chrome password generator guide.
That does not make every password manager equally suitable. Review its security model, independent assessments, recovery process, export options, device support, and current pricing before trusting it with a vault. This article compares generation workflows, not entire password-manager products.
When a standalone free generator is useful
A standalone generator helps when the password field is on another device, a legacy system imposes an unusual character rule, an administrator needs a temporary credential, or the installed password manager cannot produce the required format. This site uses the browser’s crypto.getRandomValues() through a rejection-sampling routine and generates results locally. The source repository is available for inspection.
The tradeoff is storage. This site intentionally has no vault or account. Save the result immediately in your chosen password manager, then verify it is associated with the correct site. A locally generated password can still leak through malware, an unsafe device, clipboard history, a browser extension, or careless handling.
Password generator or passphrase generator?
Choose a random-character password when software will store and autofill it. Choose a random-word passphrase when you genuinely need to type or remember the credential, such as a password-manager vault passphrase or device-encryption secret. The words must be selected independently; a quotation or personally meaningful sentence is not equivalent.
For a repeatable word workflow, use the local passphrase generator or the physical-dice mode. For ordinary accounts, use the longest random password the destination accepts and keep it unique.
Red flags in a free online password generator
- It asks you to enter an existing password, master password, recovery phrase, or personal information.
- It claims “unhackable” or guarantees a cracking time without explaining assumptions.
- It publishes a fixed list of passwords and invites users to copy one.
- It hides the length, character set, word list, or randomness method.
- It sends the generated value to a server without a necessary and documented reason.
- It encourages reuse or provides storage without explaining its security and recovery model.
For a deeper technical and practical checklist, read Are Password Generators Safe?
Frequently asked questions
Do I need to install password generator software?
Usually not. If your trusted password manager or browser already generates and saves unique credentials, another installation adds little. Install dedicated software when you specifically need a local vault, offline access, advanced policies, or command-line workflows.
Is a free password generator safe?
Price does not determine safety. Evaluate the random source, where generation occurs, whether the result is transmitted or retained, how it is stored, and whether the provider documents those choices.
Should I use an online generator or my password manager?
Use the password manager when its generator works for the account. It reduces the chance of losing the result or attaching it to the wrong login. Use a standalone generator for compatibility or one-off workflows, then store the result securely.
What length should I select?
Follow the destination’s actual limits. Current NIST public guidance recommends at least 15 characters when creating a password. Longer random values provide more search space when the service accepts them.
Does “generated locally” guarantee safety?
No. It removes one network transfer from the generation workflow, but it cannot protect an already compromised device or guarantee the behavior of other software, extensions, or clipboard tools.
Sources and review scope
Features and guidance were checked on October 4, 2026. Product behavior, pricing, and documentation can change. We reviewed official documentation and our own source code; we did not perform a new penetration test or cryptographic audit of any third-party product.