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Browse the tool catalog - Security | Page 9

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 9.

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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

Password Strength Meter

Estimate real password strength with Shannon entropy, zxcvbn pattern matching (l33t, dictionary, sequences, repeats) and brute-force crack-time across attack scenarios (offline fast/slow hash, online). The password is evaluated locally and never sent anywhere.

Validation

OpenAPI / Swagger Validator

Validate OpenAPI 3.0/3.1 and Swagger 2.0 documents structurally: required fields, path/operation completeness, response codes, $ref resolution, operationId uniqueness, and component integrity

Validation

Passport Validator

Validate passport numbers from different countries (China, USA, Japan, etc.)

Security

Password Generator

Generate secure random passwords

Cryptography

PBKDF2 Generator

Generate PBKDF2 key derivation hash

Cryptography

PBKDF2 Validator

Validate password against PBKDF2 derived key

Security

Password Validator

Validate password strength and check against common security requirements

Security

PKCE Code Verifier & Challenge Generator

Generate, validate and verify OAuth2 / OIDC PKCE (RFC 7636) code_verifier and S256 code_challenge pairs. Three modes: (1) generate a fresh verifier + challenge from cryptographically secure random bytes at 256/384/512/768-bit entropy, (2) audit a verifier you already have against the RFC — length (43–128), charset [A-Za-z0-9-._~] and ≥256-bit entropy, and (3) verify a verifier/challenge pair by recomputing BASE64URL(SHA256(verifier)). Optionally build the full authorization-request URL and token-exchange body. Complements the generic nonce-generator (which only emits a verifier+challenge pair) with RFC-compliance auditing and pair verification.

Validation

Phone Validator

Validate and format phone numbers internationally

Security

ML-KEM / Kyber Keypair & Encapsulation Tester

Generate ML-KEM-512/768/1024 (FIPS 203 / CRYSTALS-Kyber) keypairs, encapsulate a random shared secret against the public key, decapsulate it with the private key, and verify both sides match — with the exact wire sizes of all three parameter sets checked live against the standard.

Security

Nonce & Token Generator

Generate cryptographically secure one-time tokens for web security scenarios — CSRF tokens, OAuth/OIDC state parameters, session nonces, and PKCE code_verifier/code_challenge (S256). Uses crypto.randomBytes, never Math.random.

Validation

Mod-11 Checksum Calculator

Validate or generate numbers using the Modulus-11 (ISO 7064) check-digit algorithm with ISBN-10 (10..2), Norwegian-ID (3,7,6,1,8,9,4,5,2) and generic 2-7 weight schemes.