Segurança Articles
Guias detalhados sobre SEO, produtividade e ferramentas online gratuitas — escritos para ajudá-lo a resolver tarefas reais e classificar palavras-chave de cauda longa.
Password Entropy & Crack Time Calculator: free online guide
Calculate information entropy (in bits) according to Shannon formula and estimate brute-force crack time. Free on ToolSphare. No sign-up. Open Password
SSL Certificate Checker & Expiry Inspector: free online guide
Inspect SSL/TLS certificate health, days until expiration, certificate authority (CA) issuer, and HTTPS handshake parameters. Free on ToolSphare. No
HTTP Security Headers Auditor: free online guide
Inspect and audit website HTTP response security headers: HSTS, Content-Security-Policy (CSP), X-Frame-Options, and Referrer-Policy. Free on ToolSphare
File Hash Generator (SHA-256, MD5): free online guide
Use File Hash Generator (SHA-256, MD5) free in your browser on ToolSphare. Free on ToolSphare. No sign-up. Open File Hash Generator (SHA-256, MD5).
AES Encrypt Decrypt: free online guide
Encrypt and decrypt text with AES-GCM in your browser. Free on ToolSphare. No sign-up. Open AES Encrypt Decrypt. Start free in your browser today.
HMAC Generator: free online guide
Compute HMAC-SHA256 signatures locally. Free on ToolSphare. No sign-up. Open HMAC Generator. Start free in your browser.
Random String PIN Generator: free online guide
Generate random strings, passwords, and PINs locally. Free on ToolSphare. No sign-up. Open Random String PIN Generator. Start free in your browser.
TOTP 2FA Generator: free online guide
Generate TOTP 2FA codes from a Base32 secret in your browser. Free on ToolSphare. No sign-up. Open TOTP 2FA Generator. Start free in your browser.
Cryptographic Hash Identifier: free online guide
Identify unknown hash types (MD5, SHA-256, Bcrypt, Argon2, NTLM) and analyze cryptographic bit length and security. Free on ToolSphare. No sign-up. Open
Bcrypt Hash Generator & Verifier: free online guide
Generate and verify cryptographically secure Bcrypt password hashes ($2a$, $2b$, $2y$) with configurable cost factor rounds and salt. Free on ToolSphare
HTML Sanitizer & XSS Cleaner: free online guide
Sanitize unsafe HTML markup, eliminate XSS vulnerabilities, remove dangerous script tags and event handlers with real-time preview. Free on ToolSphare. No
CSR Certificate Request Decoder: free online guide
Decode PKCS#10 Certificate Signing Requests (CSR) to verify Common Name, SANs, organization, key size, and signature algorithm. Free on ToolSphare. No
DMARC & SPF Record Generator: free online guide
Generate and validate DMARC and SPF DNS TXT records to protect your domain from email spoofing, phishing, and ensure delivery to Gmail and Yahoo. Free on
ROT13 & Caesar Cipher Encoder/Decoder: free online guide
Encode and decode text using the ROT13 substitution cipher and Caesar shift cipher with configurable rotation shift from 1 to 25. Free on ToolSphare. No
RSA Key Pair Generator (2048/4096-bit): free online guide
Generate secure 2048-bit and 4096-bit RSA public and private key pairs in standard PKCS#8 and SPKI PEM formats directly in your browser. Free on today.
Password Strength Checker: free online guide
Check password strength locally — nothing is uploaded. Free on ToolSphare. No sign-up. Open Password Strength Checker. Start free in your browser.
MS Access Password Recovery & DB Tools: free online guide
Use MS Access Password Recovery & DB Tools free in your browser on ToolSphare. Free on ToolSphare. No sign-up. Open MS Access Password Recovery & DB Tools.
Password Protect ZIP: free online guide
Password protect and encrypt multiple files into a secure ZIP archive directly in your browser. Free on ToolSphare. No sign-up. Open Password Protect ZIP.
