Use this free safe browsing checker to see if Google lists a URL for malware, phishing or unwanted software. Get a verdict per thr…

Use this free blacklist checker to see if your domain or IP is listed on 20+ email blocklists. See each list's response in on…

Use this free suspicious domain checker to scan up to 20 domains at once and see Safe, Low, Medium or High Risk ratings. Check you…

Use this free MD5 generator to turn any text into an MD5 hash, plus SHA-1, SHA-256, SHA-384 and SHA-512, with one-click copy. Gene…

Use this free certificate decoder online to read a PEM certificate: issuer, expiry date, SANs, key size and fingerprints. Paste yo…

Use this free certificate key matcher to check if an SSL certificate matches its private key or CSR. See expiry, key size and SANs…

Check CSR online: paste your PEM request and see the common name, SANs, key size, key type and signature check result in seconds. …

Use this free CSR decoder to read your PEM certificate request. See common name, SANs, key size and signature status before you su…

Use this free CSR generator to create a certificate signing request and RSA private key. Pick 2048 or 4096-bit and SHA-256 to SHA-…

Use this free password encryption tool to hash any password into MD5, SHA-1, SHA-256, SHA-512 and bcrypt. Copy each result in one …

Use this free password generator to create random passwords from 4 to 64 characters. Pick character types, see entropy and crack t…

Use this free password strength checker to test any password. See crack time, entropy, a 5-level rating and fixes as you type. Che…

Use this free SSL checker to see if a certificate is valid, when it expires, who issued it and how the chain looks. Enter a domain…

Use this free SSL converter online to change certificates between PEM, DER and PFX. Add a private key and chain files for PFX, the…

Use this free SHA hash generator to create SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text in hex or Base64. Try it free,…

Use this free SPF record checker to look up any domain's SPF record, see every mechanism and qualifier in a table, and spot i…

Use this free DKIM record checker to look up any domain and selector. See the raw TXT record and parsed tags, spot revoked keys. C…

Use this free security headers checker to test any website. See your grade plus HSTS, CSP and X-Frame-Options status with fixes. C…

Use this free content security policy generator to build a CSP header from presets and 12 directives. Copy Apache, Nginx or meta t…

Use this free TOTP 2FA code generator to turn a Base32 secret into live 6 or 8 digit codes with a countdown, plus previous and nex…

Use this free bcrypt hash generator to hash a password with a cost factor from 4 to 14, or verify a password against a hash. Copy …

Use this chmod calculator to convert octal like 755 to rwx and back. Tick read, write, execute boxes, see binary, and copy the com…

Use this free email header analyzer to trace the delivery path, read SPF, DKIM and DMARC results, and spot spoofing. Paste headers…

Generate SQL injection test payloads for MySQL, MSSQL, Oracle, PostgreSQL, and SQLite. Try the free SQL Injection Tester to streng…

Generate XSS test payloads including basic, attribute, event handler, filter bypass, and DOM-based attacks. Try the free XSS Vulne…

Use this Caesar cipher decoder to encode or decode text with any shift, try all 26 shifts to crack a message, or switch to ROT13 a…