Privacy & Security Tools
Free privacy and security tools — generate strong passwords, random data, and secure credentials. Runs locally in your browser.
Free privacy and security tools for generating secure passwords, hashing credentials with bcrypt, and protecting your digital identity. Everything runs client-side — your data never leaves your device.
Why Use Free Privacy Tools?
- → Generate cryptographically strong passwords and bcrypt hashes without trusting a third-party service with your credentials.
- → Every security tool runs client-side — your passwords and sensitive data are never transmitted over the network.
- → No account, no browser extension, no app permissions — open the page and generate what you need immediately.
How to choose the right tool
Start with the result you need, then choose the smallest tool that answers that question directly. If you are estimating, forecasting, or comparing options, use the calculator that matches the decision rather than a general spreadsheet. For example, a quick fee estimate belongs in a fee calculator, while a longer planning question belongs in a budgeting, ROI, or comparison tool. This keeps the inputs focused and makes the result easier to check.
What makes these tools private
The tools in this category are designed to run in your browser whenever possible. That means your numbers, text, files, or planning details stay on your device instead of being uploaded to an account dashboard. You can refresh the page, change the inputs, and compare scenarios without creating a login or storing personal work in our database.
A simple workflow
Use one tool for the first pass, copy the result you care about, then open a related tool if the decision needs more detail. Most people get the best answer by moving from a quick estimate to a more specific calculator, not by trying to force every question into one oversized form. Each page includes plain-language notes so you can understand the formula, common mistakes, and when the answer should be treated as an estimate instead of professional advice.
Before you rely on the result
Double-check the assumptions behind any calculator result before you use it for money, health, taxes, travel, legal, or work decisions. Small input changes can shift an estimate quickly, especially when rates, deadlines, file formats, or platform rules are involved. When a page includes a formula, source note, or last-updated date, use that context to decide whether the result is current enough for your situation.
If a result looks surprising, run the numbers again with simpler inputs and compare the answer against another trusted source before acting on it.
Frequently Asked Questions
What privacy tools are available?
Password generator (crypto.getRandomValues()), bcrypt hash generator and verifier.
Is the password generator truly random?
Yes — it uses the browser's native crypto.getRandomValues() API, which draws entropy from hardware sources. This is cryptographically secure randomness, not Math.random().
Can I use the bcrypt tool with real passwords?
Yes — bcrypt hashing runs entirely in your browser using bcryptjs. Your plain text password is never transmitted anywhere, making it safe to use with real credentials during development.
Why should I use a password generator instead of making up my own password?
Human-generated passwords follow predictable patterns. A 16-character randomly generated password has roughly 105 bits of entropy — exponentially harder to crack than any memorable password a person would invent.