Strong and Secure Password Generator

About the Password Generator
How to Use the Tool
Why Use Strong Passwords?
Understanding Password Security Levels
The History and Trivia About Passwords
Take Care of Your Digital Security
Frequently asked questions about the subject

About the Password Generator

This online password generator will automatically create a password that you can use on websites, social networks, or anywhere you want.

You can customize the password by choosing to include uppercase letters, lowercase letters, numbers, and symbols, as well as set the desired length to ensure greater security.

The tool also evaluates the strength of the generated password, indicating whether it is weak, medium, or strong, helping you create more secure combinations to protect your accounts.

How to Use the Tool

To generate your password, just check or uncheck the checkbox options, select the password length, or click the 'Generate Password' button. See the descriptions of the fields below:

Password length: Here you select the number of characters in the password by typing the value directly in the field or using the slider;
Include lowercase letters: Check this option to include lowercase letters in the generated password;
Include uppercase letters: With this option checked, the generated password will contain uppercase letters;
Include numbers: This option includes numbers in the password;
Include special characters (^@&{[<;!?*%-+.,$#]}): Check this option to include special characters in the password;
Exclude ( ) [ ] { } < >: This option excludes the characters ( ) [ ] { } < > from the password;
Do not repeat characters: Check this option so that the generated password does not contain repeated characters;
Generate password: Click this button to generate the password;

Why Use Strong Passwords?

Let’s be honest: no one wakes up excited thinking, “Today I’m going to create the strongest password in the world!” But the truth is, this should be a priority. Using weak passwords like 123456 or password123 is pretty much like leaving your front door wide open with a sign that says “come on in!” In an increasingly digital world, where our lives are stored in emails, social networks, banks, and even food delivery apps, using strong passwords isn’t just important — it’s essential.

Strong passwords are like shields. They make it harder for attackers and bots to guess combinations through automated attacks. When you use a weak password, those attacks can break it in seconds. Now, when you generate a password with uppercase letters, lowercase letters, numbers, symbols, and decent length, you’re basically throwing up a wall of entropy in front of the virtual thief. And walls are good. Very good.

“But I’ve never been hacked.” Okay, great. But you’ve probably never left the gas on either, and yet you wouldn’t go playing with matches in the kitchen, right? Security isn’t just about what’s already happened — it’s about what you prevent.

And don’t stress trying to come up with a strong password on your own. That’s why our generator is here: to help you create nearly unbreakable passwords without complicating your life. Just click, choose your settings, and boom: a strong password ready to protect what’s yours.

If there’s anything worth putting effort into, it’s your password. After all, no one wants to see their email sending spam about bitcoins to their entire contact list.

Understanding Password Security Levels

Not all passwords are created equal. Some are as fragile as a cardboard door, while others are true digital fortresses. But how can you know if the password you created is really secure? That’s where security levels come in.

In our password generator, we use a metric based on entropy — a technical way of saying "how unpredictable your password is." The higher the entropy, the harder it is for a computer (or a malicious person) to guess your password, even with programs that try millions of combinations per second.

We translate this complexity into something easier to understand by dividing passwords into three main levels:

Weak: usually short passwords or composed only of lowercase letters. A typical example would be something like “joao123”. These are very easy to crack and should be avoided.
Medium: include a better mix of characters, like uppercase letters and numbers. These are much better than weak ones but can still be broken by more advanced attacks.
Strong: long passwords that mix uppercase and lowercase letters, numbers, and symbols. Example: Gz#7bL!wQ9. These are tough for any hacking attempt and ideal for protecting sensitive information.

Our password strength bar (the one with colorful blocks) visually shows this level, so you can see in real time whether your password is more like a desk drawer lock or a bank vault.

Remember: a secure password today can save you a lot of headaches tomorrow.

The History and Trivia About Passwords

Passwords are part of our digital lives, but did you know they’ve been around for thousands of years? Long before the internet, passwords were already used to protect information, ensure restricted access, and keep secrets safe.

In Ancient Rome, soldiers used oral passwords (or “signum”) to identify themselves when entering a military camp. If you didn’t know the password of the day, you simply weren’t allowed in. It was a practical and effective way to prevent infiltrators.

As technology advanced, passwords moved from the battlefield to the digital world. The first computer password was created in 1961 at MIT, when researchers needed to control access to a mainframe — a massive computer used by multiple users. The idea was simple: each person would have a login and password to access their files.

Since then, passwords have evolved (or at least, they should have). The problem is, even in 2025, many people still use combinations like “123456” or “password123” — which appear every year on the list of the worst passwords in the world. In some cases, even “admin” or the website’s name is used as a password...

Another fun fact: some people believe that changing passwords every month is safer, but that’s not always true. The ideal is to have strong, unique passwords for each site and use a password manager so you don’t have to rely on memory.

At the end of the day, your password is the key to your online life. And by knowing a bit of its history, we understand that it has always played — and still plays — a crucial role in security.

Take Care of Your Digital Security

We live in an era where practically everything happens online: our conversations, our money, our documents, our memories, and even our identity. And amidst all this, passwords remain one of the main barriers protecting what is yours from being hacked or stolen. As simple as it seems, creating a strong password is still one of the most important actions you can take for your security.

The problem is that often, in the rush of daily life, we underestimate this detail. We reuse passwords, choose obvious combinations, rely on fragile memory, or jot everything down in insecure physical or digital notes. That’s when vulnerability knocks at the door — and often it comes silently, unnoticed, until it’s too late.

Using a password generator is a smart first step. It takes away the responsibility of creating something random and hard to guess, and it helps incorporate good practices like including uppercase letters, lowercase letters, numbers, and symbols. More than that, it avoids predictable patterns — like names, dates, or simple sequences — which are easily broken by automated attacks.

But it’s important to remember: a strong password alone doesn’t solve everything. Ideally, use different passwords for each service, enable two-factor authentication whenever possible, and, of course, stay extra cautious with suspicious emails and phishing scams, which often don’t even need your password if you click where you shouldn’t.

Digital education is also part of this journey. Knowing how attacks work, how your information can be exploited, and which tools to use to protect yourself is just as important as having a 20-character password. Knowledge here is your armor.

So, if you’ve read this far, you’ve probably understood the importance of taking your passwords seriously. Start right now by creating a strong password with this tool, and try to make this habit part of your online routine. It might seem like overkill, but a good password can save you a lot of headaches in the future.

Remember: digital security isn’t about paranoia — it’s about responsibility. And like in any other area of life, small consistent habits make all the difference. Choosing secure passwords is simple, free, and completely under your control. So take this chance to protect what’s yours with intelligence and practicality.

Your “future self” will surely thank you.

Frequently asked questions about the subject

What is an online password generator?

An online password generator is a tool that creates random and secure passwords based on criteria set by the user, such as using uppercase letters, lowercase letters, numbers, and symbols. It's useful for creating strong passwords that are hard for hackers or attack software to guess.

How does a secure password generator work?

The generator uses algorithms that combine different types of characters to form random and complex passwords. You can customize the password by choosing the length and allowed character types. This helps avoid common patterns and makes the password harder to crack.

Why use different passwords for each site?

Using the same password on multiple sites is a huge risk. If one of those sites is compromised, all others using the same password become vulnerable. Using different passwords drastically reduces the impact of a data breach.

Are passwords with symbols more secure?

Yes. Including symbols like @, #, & or ! increases password complexity, making brute-force attacks harder. The more diverse the character set, the higher the password entropy — and the stronger the security.

How many characters should a strong password have?

Ideally, a password should have at least 12 characters, but the longer, the better. Passwords with 16 or more characters tend to be much more resistant to attacks, especially if they mix different character types.

Is it safe to use online password generators?

Yes, as long as you're using a trusted tool. Password generators that run 100% in your browser (without sending data to servers) are safer, as they ensure your password is not stored or transmitted.

What is password entropy?

Entropy is a mathematical measure of a password's unpredictability. The higher the entropy, the harder it is for an attacker to guess or break the password. Long passwords with varied characters have high entropy and are more secure.

Why shouldn't I use dates or names in passwords?

Because they're easy to guess. Hackers use dictionaries with common names, birth dates, and other personal information to crack passwords quickly.

How can I protect my passwords from hackers?

Use strong and unique passwords, enable two-factor authentication (2FA), and never share your passwords. Also avoid unprotected public Wi-Fi networks.

What should I do if I forget my password?

Use the password recovery option on websites. That's why it's important to keep your email updated and secure. Password managers can also help avoid this problem.