Security Tools

Generate passwords, QR codes, hashes, and encrypt data securely.

24 tools: all 100% client-side

Password Generator

Generate secure passwords with custom length and character sets.

Password Strength Checker

Test password strength with entropy and crack time estimates.

OTP Generator

Generate TOTP 2FA codes with countdown timer and auto-refresh.

AES Encrypt/Decrypt

Encrypt and decrypt text securely using AES-GCM 256-bit client-side.

RSA Key Generator

Generate cryptographically secure public/private RSA key pairs client-side.

Public/Private Key Matcher

Verify if a public key matches a private key for RSA, DSA, or ECDSA.

SSH Key Generator

Generate standard SSH keys (ED25519, RSA) with passphrase option entirely client-side.

PGP Encrypt/Decrypt

Encrypt/decrypt text and manage keys using OpenPGP completely in browser.

HMAC Signature Validator

Verify message integrity and authenticity against an expected HMAC signature.

Checksum Verifier

Verify file and text integrity against MD5, SHA-1, SHA-256, and SHA-512 values.

Secure Notes Encryptor

Write, encrypt, and download password-protected notes locally in your browser.

Random Token Generator

Generate cryptographically secure random tokens (Hex, Base64, Base32, Custom).

API Key Generator

Create standard-compliant API keys (Stripe, GitHub, OpenAI format) with prefixes.

Common Ports & Services Reference

Educational guide for network ports, vulnerability risks, and firewall advice.

Security Headers Evaluator

Parse and audit raw HTTP response headers for security configuration best practices.

QR Code Generator

Generate QR codes from any text or URL: download PNG or SVG.

Barcode Generator

Generate barcodes — CODE128, EAN-13, UPC, and more.

JWT Encoder

Encode JWT tokens with custom header, payload, and secret key.

Hash File

Generate SHA-1, SHA-256, SHA-384, SHA-512 hash of any file.

IP Address Lookup

Look up your public IP address with geolocation, ISP, and timezone info.

DNS Lookup

Query DNS records for any domain: A, AAAA, MX, NS, TXT, CNAME.

SSL Checker

Check SSL certificate details for any domain: issuer, expiry, chain.

Password Breach Checker

Check if a password has been exposed in data breaches: privacy-first k-anonymity.

CSP Evaluator

Analyze Content Security Policy headers for security issues and best practices.