Database Password Generator

Connection string safe, terminal safe, and confusion-safe passwords for database accounts.

100% in browser
Database Presets
Password Length

PostgreSQL has no password length limit, so 24 characters gives you plenty of entropy. Drops straight into a postgres:// connection string, psql, and .env files.

No look-alikes Connection-string safe Terminal-safe
Generated Password
Connection String

What makes a database password strong?

A weak database password is one of the easiest ways in for an attacker. These are the habits worth building, and the generator above already handles most of them for you.

Long passwords are best

Length beats complexity. Aim for 16+ characters for app users and 24+ for anything production-facing. Every extra character multiplies the cracking difficulty.

Mind your connection string

Characters like @ : / # break postgres:// URIs unless escaped. Our database presets avoid these annoying characters for this reason.

One password, one database

Never reuse credentials across databases or environments. A breach in staging should never hand someone the keys to production.

Keep secrets out of code

Store credentials in environment variables or a secrets manager, and never commit them to config files or version control. Rotate them periodically.

Key takeaway: This free database password generator creates connection-string safe, terminal-safe, and confusion-free passwords for PostgreSQL, MySQL, MongoDB, SQL Server, and Redis. Built for backend developers, DevOps engineers, and database administrators who need secure credentials that work reliably in URIs, CLI tools, and .env files — without manual escaping.

What is a Database Password Generator?

A database password generator is a specialized security tool that creates passwords optimized for database connection strings. Unlike general-purpose password generators, it avoids characters that break URI parsing (like @, :, /, #), removes visually ambiguous characters (like 0/O, 1/l/I), and ensures passwords are safe to paste into terminals without shell interpretation issues.

According to PostgreSQL documentation, there's no password length limit — meaning longer passwords provide exponentially better protection. Our default of 24 characters yields 136+ bits of entropy, far exceeding the 80-bit minimum recommended by NIST SP 800-63B.

How to Generate a Secure Database Password

  1. Select your database type (PostgreSQL, MySQL, SQL Server, MongoDB, or Redis)
  2. Adjust the password length — 24+ characters recommended for production
  3. Click "New" to generate a cryptographically random password
  4. Copy the password or the ready-to-use connection string
  5. Store it in your .env file or secrets manager — never in source code

Database Password Requirements Comparison

DatabaseMax LengthCharacters to AvoidOur Default
PostgreSQLNo limit@ : / # (in URIs)24 chars, ~136 bits
MySQL32 chars@ : / (in URIs)20 chars, ~113 bits
SQL Server128 chars; = (in ODBC strings)24 chars, ~136 bits
MongoDBNo limit@ : / % (in mongodb://)24 chars, ~136 bits
RedisNo limitSpaces (in redis-cli)32 chars, alphanumeric

Frequently Asked Questions

Why can't I just use a regular password generator for databases?

Regular password generators include characters like @, :, /, and # that break database connection strings (postgres://, mysql://, mongodb://). They also include shell-interpreted characters like $, !, and backticks that cause issues in terminal commands and bash scripts. Our generator specifically avoids these while maintaining high entropy.

How long should a database password be?

For production databases: 24+ characters minimum. For development: 16+ is fine. Length is the strongest factor in password security — a 24-character password with our character set provides 136 bits of entropy, which would take trillions of years to brute-force even at 10 billion attempts per second.

Is this tool safe? Can you see my generated passwords?

No. All password generation happens entirely in your browser using the Web Crypto API (crypto.getRandomValues). Zero data is sent to any server. You can verify by checking your browser's Network tab — no requests are made during generation.

Should I use the same password for dev and production databases?

Never. Each database and environment (development, staging, production) should have its own unique password. A breach in one environment should never compromise another. Generate separate passwords for each and store them in environment-specific .env files or a secrets manager like HashiCorp Vault or AWS Secrets Manager.

Where should I store my database password?

Store database credentials in environment variables (.env files), a secrets manager (Vault, AWS Secrets Manager, GCP Secret Manager), or encrypted CI/CD variables. Never commit passwords to git, hardcode them in source code, or store them in plain text config files that ship with your application.

How often should I rotate database passwords?

Rotate production database passwords every 90 days or immediately after any team member leaves. Automated rotation using tools like Vault's database secrets engine is ideal. For managed services (AWS RDS, Cloud SQL), enable automatic password rotation where available.

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Last updated: August 2026 · Uses Web Crypto API · Sources: PostgreSQL Docs, NIST SP 800-63B