ToolKit

Security Tools

Free Online Security Tools

Browser-based security utilities that run entirely on your device. Generate cryptographically strong passwords, compute SHA hashes, decode JWT tokens, and create QR codes — without sending any data to a server.

Password Generator
Strong random passwords with custom settings
Live
Hash Generator
SHA-1, SHA-256, SHA-384, SHA-512 hashes
Live
Bcrypt Generator
Hash and verify passwords with bcrypt
Live
JWT Decoder
Decode and inspect JWT tokens
Live
Password Strength Checker
Analyse password strength and entropy
Live
HMAC Generator
Generate HMAC signatures with SHA-256 or SHA-512
Live
TOTP Code Generator
Generate time-based one-time passwords
Live
Random Token Generator
Cryptographically secure random tokens and secrets
Live
API Key Generator
Generate formatted API keys instantly
Live
QR Code Generator
Generate QR codes for URLs and text
Live
Text Encryption Tool
AES-256 encrypt and decrypt text in browser
Soon
SSL Certificate Decoder
Decode and inspect PEM SSL certificates
Soon

Specialized versions

WiFi Password GeneratorPassword Generator for Testing & Development20 Character Password GeneratorPassword Generator Without Special Characters8 Character Password Generator12 Character Password Generator32 Character Password Generator64 Character Password GeneratorNumber-Only Password GeneratorLetters-Only Password GeneratorAlphanumeric Password GeneratorHex Password GeneratorBank Account Password GeneratorEmail Account Password GeneratorGaming Account Password GeneratorSocial Media Password GeneratorSchool & Student Password GeneratorBulk Password GeneratorMemorable Password GeneratorPassphrase GeneratorPronounceable Password GeneratorPassword Generator for KidsWork & Corporate Password GeneratorTemporary Password GeneratorPIN Code GeneratorDatabase Password GeneratorSSH Key Passphrase GeneratorCrypto Wallet Password Generator

Why use browser-based security tools?

Every security tool on ToolKit runs 100% in your browser using the Web Crypto API. This means your passwords, plaintext inputs, and cryptographic keys never leave your device — there is no server to breach, no logs to leak, and no third party involved.

This is especially important for security-related operations. When you generate a password or compute a hash on a server-based tool, you're trusting that the operator doesn't log your input. With client-side tools, you don't need to trust anyone — the code runs locally and you can verify it using your browser's developer tools.

The OWASP Top 10 consistently lists broken authentication and cryptographic failures as the most critical web application security risks. Strong, unique passwords and proper hashing are the first line of defense against both.

Security best practices

Unique password per account
A single compromised password should never expose other accounts. Use a password manager to store unique generated passwords for every service.
Use SHA-256, not SHA-1
SHA-1 is deprecated and cryptographically broken. Use SHA-256 or SHA-512 for all new implementations.
Never hash passwords with SHA
SHA is too fast for password storage. Use bcrypt, Argon2id, or scrypt — algorithms designed to resist GPU brute-force attacks.
Verify file integrity with checksums
When downloading sensitive software, verify the SHA-256 checksum provided by the publisher against the hash you compute locally.

FAQ

Common questions

Are these security tools safe to use?

Yes. Every tool runs entirely in your browser using the Web Crypto API. No data — passwords, hashes, or keys — is ever sent to a server, stored, or logged.

What is the difference between hashing and encryption?

Hashing is one-way — you cannot reverse a hash. Encryption is two-way — data can be decrypted with the right key. Use hashing for integrity verification and password storage. Use encryption for data that needs to be recovered.

How long should a secure password be?

NIST recommends at least 15 characters for general accounts. For high-value accounts use 20+ characters with uppercase, lowercase, numbers, and symbols. Length matters more than complexity.

Should I use SHA-256 for storing passwords?

No. SHA-256 is too fast — attackers can try billions of guesses per second. Use bcrypt, Argon2, or scrypt for password storage.

What is a QR code used for in security?

QR codes are used for 2FA setup, sharing WiFi credentials, and encoding URLs. Use a client-side generator so sensitive data never leaves your device.

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