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Security Tools

Free Security Tools

Generate cryptographically secure passwords with the Web Crypto API and calculate MD5, SHA-1, SHA-256, or SHA-512 hashes for text and files in your browser.

2 tools, all free, no sign-up

Password Generator

Generate cryptographically secure random passwords. Customize length, character types, and exclusions. Uses Web Crypto API.

GeneratorSecurity

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes instantly. Hash text or files client-side with HMAC support. No data sent to servers.

DeveloperSecurity
Security tools generate or verify the building blocks of basic digital hygiene: strong passwords and cryptographic hashes. A cryptographic hash is a fixed-length string derived from input data such that any change to the input, even a single character, produces a completely different output, which is why hashes verify that a file or message has not been altered rather than encrypt it. They are used by anyone setting up a new account who wants a password stronger than a memorable phrase, and by developers who need to generate or check a hash (MD5, SHA-1, SHA-256, SHA-512) for a file or string. A concrete example: someone setting up a new email account wants a genuinely random 20-character password rather than a pattern they will reuse elsewhere, so they generate one instead of typing something memorable but guessable. Password generation here uses the Web Crypto API for randomness, not a simple pseudo-random function, which is the meaningful difference between a real password generator and a toy one.

Frequently Asked Questions

Should I use MD5 or SHA-256 for a hash?▾
MD5 and SHA-1 are fine for checksums or verifying a file has not changed, but are not considered secure for passwords. Use SHA-256 or SHA-512 for anything security-sensitive.
Are passwords generated here stored anywhere?▾
No. Passwords are generated in your browser using the Web Crypto API and are never sent to or stored on a server.
Are these Security Tools tools free to use?▾
Yes, all 2 tools in this category are completely free. No sign-up, no account, and no payment required. Every tool works instantly in your browser.
Do these tools work on mobile phones?▾
Yes. All tools are mobile-responsive and work on iOS, Android, and desktop browsers. Touch events are supported where applicable.
Is my data sent to a server?▾
It depends on the tool, so each tool page says which it is. Most run entirely in your browser and send nothing. Some fetch public data to work, such as price charts and currency rates. A few, like the dynamic QR generator, need an account and store what you create, because that is the feature.
How many Security Tools tools are available?▾
There are 2 tools in this category. All are free and require no sign-up. Browse the list above to find the tool you need.