Wachtwoord Sterkte Checker

Gratis online tool test your password strength instantly with real-time analysis. get entropy scores, crack time estimates, and actionable security tips. free online, private, no sign-up.

Wat is Wachtwoord Sterkte Checker?

A powerful developer tool designed to help you work more efficiently. Password Strength Checker provides accurate results instantly with a clean, intuitive interface. Perfect for developers, engineers, and IT professionals.

Formule

entropie (bits) = Length × log₂(Pool Size)

Pool Size = 26 (lower) + 26 (upper) + 10 (digits) + 33 (special) = 95 max

Score based on: length (50%), case mixing (15%), digits (15%), special chars (20%)

Hoe te berekenen

Enter your input in the field above.
Configure any available options to customize the output.
View the results instantly with real-time updates.
Copy or export your results for use in your projects.

Voorbeeld

The wachtwoord "Tr0ub4dor&3" scores ~56 bits of entropie (Good). It would take days to months to crack. A better approach: "blue-elephant-dances-midnight" has ~98 bits (Very Strong).

Belangrijkste voordelen

Get accurate results instantly in your browser.
Save time with real-time calculations as you type.
No data leaves your device - complete privacy.
Free to use on any device, no sign-up required.

Veelgemaakte fouten

Using dictionary words or veelvoorkomend phrases
Letters vervangen door gelijkaardige tekens (bijv. 0 voor O)
Using personally identifiable informaation
Wachtwoorden te kort of te eenvoudig maken

Pro-tips

Gebruik passphrases — long sentences that are easy to remember
Never reuse wachtwoords across different accounts
Activeer 2FA on all accounts that support it
Use a wachtwoord manager to genereren and store unique wachtwoords

Sleutelbegrippen

entropie: Measure of unpredictability in bits
Brute-force-aanval: elke combinatie proberen
Dictionary attack: Trying veelvoorkomend words/phrases
Wachtwoordzin: een wachtwoord gemaakt van meerdere woorden

Veelvoorkomende toepassingen

Testing new wachtwoords before use
Evaluating existing wachtwoord sterkte
Learning wachtwoord security best practices
Auditeren van organisatorische wachtwoordbeleid

Veelgestelde Vragen

How is wachtwoord sterkte calculated?

sterkte is calculated using entropie (bits of willekeurigness), length, character diversity, and patroon analysis. Higher entropie and diverse characters result in stronger wachtwoords.

What is a good entropie score?

entropie above 60 bits is good, above 80 bits is strong, and above 100 bits is very strong. A 12-character mixed-type wachtwoord typically scores 70+ bits.

Waarom is lengte belangrijker dan complexiteit?

Length exponentially increases wachtwoord sterkte. A 20-character lowercase-only wachtwoord (95 bits) is stronger than a 10-character mixed-type wachtwoord (66 bits). Length always wins.

Is this hulpmiddel storing my wachtwoord?

No. All analysis happens in uw browser. For security, consider typing a similar wachtwoord rather than uw actual one.

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