Laravel Password Generator

Common use cases

• Testing and development (seed a known login)
• Creating a user manually (admin user setup)
• Resetting a password directly in the database
• Database seeding and fixtures
• Fixing broken accounts after a migration

How to manually update a Laravel user password in MySQL

The typical reason developers search for a “Laravel password generator” is to set a password for an existing user row. The process is simple, but you must be careful, especially on production systems.

1. Back up your database (or at least the users table) before editing anything.
2. Generate a bcrypt hash using this page (or generate it inside Laravel using Hash::make).
3. Update the user’s password column with the generated hash.
4. Log in to confirm the new password works, then remove any temporary credentials.

Example query (replace the email and hash):

UPDATE users
SET password = '$2y$12$REPLACE_WITH_YOUR_HASH_HERE'
WHERE email = '[email protected]'
LIMIT 1;

If your app uses a different table or column name, update the query accordingly. If you use Laravel guards or a custom user provider, make sure you are updating the correct user model’s table.

Technical deep dive: $2a$, $2y$, and $2b$ bcrypt prefixes

Bcrypt hashes start with a version prefix that looks like $2a$, $2y$, or $2b$. All of them refer to the bcrypt algorithm, but the prefix indicates which variant/version the hash was produced by.

• $2y$: The prefix produced by PHP’s password_hash (and therefore Laravel) for bcrypt.
• $2b$: A modern prefix used by many other implementations and libraries.
• $2a$: An older prefix you may still see in legacy systems.

In practice, bcrypt hashes with these prefixes share the same structure: version, cost, salt, and hash. Laravel will typically store hashes that begin with $2y$, so this tool normalizes the output prefix to match.

Why Laravel uses bcrypt (and why MD5/SHA1 is dangerous)

Bcrypt is designed for passwords: it is intentionally slow and includes a configurable cost factor. That slowness is a security feature because it makes brute-force guessing dramatically more expensive. In contrast, simple hashes like MD5 or SHA1 are fast and were designed for integrity checks, not password storage. Fast hashing makes it easier for attackers to try billions of guesses per second using GPUs.

The bcrypt cost (sometimes called “rounds”) controls how expensive hashing becomes. Many Laravel applications run with a cost of 10–12 by default, but the correct value depends on your server performance requirements. Increasing cost improves resistance to offline attacks, but it also increases CPU usage during login.

FAQ