About this generator
This preset creates a random database credential for a MongoDB application user. PwdGen is independent of MongoDB and does not connect to Atlas or receive the generated value.
This preset starts with characters mode and generates 10 independent results at a time. Every visible setting remains adjustable, and generated values are not sent to PwdGen.
When to use it
- Creating a new credential for this specific use case
- Replacing a reused or weak password
- Generating values locally before secure storage
Alphabet size, entropy, and brute-force assumptions
The theoretical entropy ceiling is calculated as H = L × log2(A), where L is the generated length and A is the number of currently permitted characters.
| Length | Alphabet | Search space | Entropy ceiling | Average at 10 billion guesses/s |
|---|---|---|---|---|
| 24 | 68 | 6824 | 146.1 bits | 1.51e26 years |
Important: these are mathematical estimates for uniformly random values. Required positions, restricted counts, repeated passwords, dictionary patterns, leaked credentials, and real password-hashing costs can change the result substantially. The figure is not a security guarantee.
MongoDB credential deployment guidance
Create separate database users for applications, administrators, backups, and automation. Give each identity only the roles it needs, and store credentials outside source code.
Generate a URL-safe value with Node.js
node -e "console.log(require('crypto').randomBytes(24).toString('base64url'))" - Store MONGODB_URI in a secret manager or protected environment variable.
- Percent-encode username and password components when required by the connection-string URI.
- Use SCRAM-SHA-256 for authentication and TLS for transport protection; one does not replace the other.
- Combine credentials with Atlas IP Access Lists or equivalent network controls.
- Rotate a credential when exposure is suspected and verify that old credentials are revoked.
How to use the result safely
- Check the destination’s current password rules
- Use a unique result and enable MFA where available
- Store recovery codes separately from the password
Generation and privacy method
The preset uses the browser Web Crypto API for random selection. Regenerating, changing settings, selecting, and copying results do not send generated credentials to PwdGen. The password crack-time estimator also runs locally and is an estimate, not a guarantee.
Mongodb Password Generator FAQ
Can I put a MongoDB password directly in a connection string?
Avoid hard-coding it. Store the connection string in a secret manager or protected environment variable, and percent-encode username or password characters when the URI format requires it.
Does SCRAM-SHA-256 replace TLS?
No. SCRAM authenticates the database user, while TLS protects traffic in transit. Production deployments generally need both plus appropriate network access controls.
Should every MongoDB application use a separate database user?
Yes. Separate application, administrator, backup, and automation identities make least-privilege roles, auditing, and credential rotation easier to enforce.