Visual UNIX/Linux file permissions calculator. Toggle Owner, Group, and Public read/write/execute permissions, calculate SUID/SGID/Sticky bits, perform bi-directional octal-to-symbolic conversions, and generate production-safe chmod commands with built-in security auditing.
Visual Linux/UNIX file permissions calculator. Toggle Owner, Group, and Public permissions, audit security risks, calculate SUID/SGID bits, and generate copyable CLI commands.
Interactive checkboxes, octal input (755), and symbolic strings (-rwxr-xr-x) sync immediately in real time.
Highlights dangerous 777 or world-writable configurations with explanations of best-practice alternatives.
Safely set 600 permissions on SSH keys or 755/644 on web server hierarchies.
Calculate network range, broadcast, usable host IPs, Cisco wildcard, and 32-bit binary breakdown.
Generate secure OpenSSL commands for CSRs, self-signed SAN certs, cert inspections, and PFX conversions.
Generate secure cryptographic RSA (2048-4096b) and ECDSA (P-256/384/521) key pairs with PEM, JWK, and live sandbox testing.