Every strong online defense starts with a strong password — but creating one that’s both secure and memorable isn’t easy.
Random password generators solve that problem by creating complex, unpredictable passwords in seconds.
However, not all generators are built equally. Some use weak algorithms or transmit your data insecurely, putting your accounts at risk.
We asked cybersecurity professionals to share key factors they consider when choosing a random password generator — from cryptographic security and local generation to AI-resistant unpredictability — so you can protect your accounts with total confidence.
Choose Secure Sources for Password Generation
As a cybersecurity expert, the most important factor when using random password generators is ensuring the generator itself is secure.
I’ve seen businesses rely on weak or predictable tools that compromise every account they were meant to protect.
An insecure generator can use patterns that make passwords easier to guess, especially in offline cracking attempts.
I remember helping a client who used the same web-based generator across multiple accounts. Once attackers identified its predictable pattern, they accessed several systems within hours.
From experience, I always recommend using generators from trusted, audited sources. Reliable password managers—like Proton Pass or LastPass—offer built-in generators that work offline and use cryptographically secure methods. They also encrypt and sync passwords safely.
At Tech Advisors, we’ve helped clients switch to these tools after discovering that their previous “free” online generators stored passwords on external servers. Once they made the change, their security posture improved immediately.
My advice is simple: never trust random websites to create your passwords.
Look for tools that are transparent, open-source, and well-reviewed in the cybersecurity community. Always check for HTTPS and avoid generators that require you to input personal data. Password security starts with the foundation—the generator—and making the right choice there can prevent countless breaches later on.
Konrad Martin, CEO, Tech Advisors
Trust Only Local Password Generation
The most important consideration isn’t how complex the password looks, it’s where that randomness comes from and what happens to the password after it’s created.
If the generator runs online or sends data anywhere outside your device, you’re trusting a system you can’t verify. That’s a hidden risk.
A secure password generator should:
– Work locally or offline so nothing is transmitted.
– Use a cryptographically secure random function, not a simple pseudo-random one.
– Avoid storing or syncing passwords without strong encryption.
In short, a strong password means nothing if someone else had a copy first.
Demyd Maiornykov, CEO, Sekurno
Ensure Cryptographically Secure Randomness
Do you often use random password generators?
If so, you need cryptographically secure randomness to work properly!
Let’s say if the generator uses weak or predictable randomness instead of true cryptographic randomization, then your password will be easily cracked.
Thus, it is important that your generator uses a CSPRNG (Cryptographically Secure Pseudo-Random Number Generator), especially before you trust it with sensitive accounts.
Amy Mortlock, Vice President – OSINT Software, ShadowDragon
Prioritize Unpredictability Against AI Cracking
With AI-driven tools now capable of cracking predictable patterns faster than ever, password strength isn’t just about length or symbols anymore; it’s about unpredictability.
Many people still think that replacing letters with symbols, like using “@” for “a” or “$” for “s”, makes a password strong, but in reality, that’s now easily recognized by AI and brute-force algorithms.
So when using a random password generator, make sure that: The passwords are generated locally or through a trusted, encrypted service (not stored or transmitted insecurely).
You’re creating long, unique passwords for every account, ideally 14+ characters.
You’re using a password manager to store them securely, rather than reusing or recording them manually.
In short, randomness, uniqueness, and secure storage are what really keep you safe in an AI-powered world.
Callie Poston, Marketing Manager, Sunrise Technologies
Verify Origin of Randomness
The most important thing is the knowledge of the origin of the randomness.
Lots of online generators are based on pseudo-random number algorithms which generate predictable series when the seed or source of entropy is weak.
A secure generator has to seed a cryptographically secure random number generator (CSPRNG) using system-level entropy – preferably hardware-based randomness, like /dev/random on Unix or Windows CryptoAPI.
It is also vital to ensure that the location of password generation as well as storage is controlled.
Using an encrypted password manager or starting up a generator locally will remove exposure to any server logs or browser caches that might be storing output.
The tradeoff is often concealed by the convenience of online tools. The most suitable solution is to use a verifiably secure generator and a zero-knowledge vault so that randomness remains confidential and unrepeatable.
The password in itself is not what gives one true security; it is the trust in the randomness of the password that does.
Wayne Lowry, Marketing Coordinator, Local SEO Boost
Final Thoughts: Build Strong Passwords You Can Trust
Random password generators are incredibly powerful tools — when you choose the right ones.
Always favor local, verifiable, and cryptographically secure tools from trusted sources.
Avoid online generators that transmit or store your data, and make sure your passwords are unpredictable enough to outsmart even AI-driven cracking attempts.
When in doubt, use a reputable password manager with offline generation. Security starts with randomness — and that randomness starts with you choosing wisely.
Leave a Reply