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Browse the tool catalog - Security

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.

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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

Image Steganography Embed & Detect

Hide text in a PNG's least-significant bits, extract it back, and run the Westfeld–Pfitzmann chi-square steganalysis with a falling-p curve and LSB plane preview.

Cryptography

Hash Algorithm Comparator

Hash the same input with MD5, SHA-1, SHA-256, SHA-512, BLAKE2b, and BLAKE3 at the same time and compare them side by side: output length, hex/Base64 digest, security status (broken / modern), and a relative speed benchmark. Great for teaching, choosing a hashing algorithm, or sanity-checking checksums.

Security

HMAC Generator & Verifier

Compute an HMAC message-authentication signature over a message + shared secret using SHA-1/SHA-2/SHA-3/BLAKE2, or verify an incoming signature against the secret — with webhook presets for Stripe / Slack / GitHub and constant-time comparison

Security

JWK Generator & Parser

Generate JSON Web Keys (JWK) for RSA, EC (P-256/P-384/P-521/secp256k1), and OKP (Ed25519/Ed448/X25519/X448), or parse an existing JWK to inspect its parameters, thumbprint, and metadata

Security

JWT Inspector & Verifier

Decode a JWT (header + payload) with syntax highlighting, diagnose standard claims, and verify the signature with HS*/RS*/PS*/ES*/EdDSA keys — plus a tampered-token forgery demo

Validation

Heading Hierarchy Auditor

Audit heading structure from a live URL or pasted HTML, then flag skipped levels, multiple h1 usage, style-only heading abuse, and title metadata drift

Security

JWT Decoder & Security Auditor

Decode JWT header and payload, verify HS256 or RS256 signatures, and flag algorithm, expiry, and sensitive-claim security risks

Validation

IBAN Validator

Validate International Bank Account Numbers (IBAN)

Validation

Global Phone Validator

Validate phone numbers from multiple countries including China, US, and more with detailed formatting and carrier info

Validation

Global Postal Code Validator

Validate postal codes from multiple countries including US ZIP, UK Postcode, Canada, and more

Validation

JSON Schema Validator

Validate JSON data against a JSON Schema to verify structure and data types

Validation

IBAN & SWIFT Validator

Validate International Bank Account Number (IBAN) and SWIFT/BIC codes with checksum verification