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Browse the tool catalog - Security | Page 2

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Focused on Security. Page 2.

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Math, Date & Finance638

Calculators, numerics, date logic, statistics, and finance tools

Images, Audio & Video585

Image, audio, and video processing, conversion, and optimization tools

Design & Color291

Color, layout, graphics, visual styling, and design helper tools

Text & Writing203

Writing, cleanup, formatting, extraction, and text analysis tools

Developer & Web172

Developer utilities, networking, web debugging, and automation helpers

Conversion & Encoding169

Format, file, archive, unit, and encoding conversion tools

A/B Experiment Design, Sample Size, and Statistical Power

AGEX Secure File Packaging and Handoff

AGEX Secure Package Review Before Handoff

AI Face Analysis: Detection, Comparison, and Recognition Workflows

API Contract Definition, Schema Validation, and Change Testing

Docs Pricing About Terms of Service Privacy Policy Contact

Security

SP 800-56C HKDF Extract and Expand Walkthrough

Show each HMAC step of HKDF Extract+Expand for protocol key derivation, including PRK, T(n), and OKM.

Security

Secure Random Generator

Generate cryptographically secure random key material driven by entropy budget — request N bits of entropy, get hex/base64/base64url output. Also supports custom-alphabet strings via crypto.randomInt (rejection-sampled, no modulo bias). Use this instead of Math.random()-based tools for any secret/key/token.

Security

Security Headers Checker

Audit HTTP response headers for security compliance — parses the raw headers you paste (no network) and grades them against the OWASP secure-header set with value-level checks: HSTS max-age, CSP unsafe-inline/eval, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP/COEP/CORP and more. Outputs a letter grade (A+ to F) plus per-header findings with copy-ready fix recommendations.

Security

Shamir Secret Sharing

Split a secret into n shares where any k (the threshold) are required to reconstruct it — Shamir's k-of-n scheme over GF(256). Pure in-process cryptography (crypto.randomBytes for polynomial coefficients), no network. Split a password/key/passphrase into shares held by separate people, then combine any k of them to recover it. Confidentiality only — no authenticity.

Security

RSA Encrypt / Decrypt

Encrypt text with an RSA public key or decrypt ciphertext with the matching private key, using OAEP padding (SHA-1 or SHA-256). Handles long messages by chunking. Keys and data stay local. PKCS#1 v1.5 is intentionally not offered (Node disables it for decryption due to Bleichenbacher attacks).

Security

RSA Key Pair Generator

Generate an RSA key pair (2048/3072/4096-bit) as PEM-encoded public and private keys. Optionally encrypt the private key with a passphrase. PKCS#8 (recommended) or PKCS#1 private key format. Everything runs locally.

Security

SSH Key Pair Generator

Generate an SSH key pair (Ed25519 recommended, RSA 4096, or ECDSA P-256) with an OpenSSH-format public key ready for ~/.ssh/authorized_keys, a SHA256 fingerprint, and a PEM private key. Optional passphrase encryption. Runs locally.

Validation

ABA Routing Number Validator

Validate 9-digit US ABA bank routing numbers (RTN) with MICR check-digit verification, Federal Reserve district lookup and ABA institution breakdown.

Validation

SEDOL Validator

Validate 7-character UK/Irish SEDOL securities identifiers with weighted mod-10 check-digit verification and SEDOL-7 structure breakdown.

Validation

Robots.txt Lint Validator

Lint robots.txt syntax, flag risky rules, and test important URLs before you ship crawler directives

Validation

Screen Reader Simulation Tester

Simulate the reading order and spoken semantics a screen reader may expose from a URL or raw HTML, then flag likely accessibility gaps

Security

SQL Injection Detector

Detect common SQL injection attack patterns in input strings