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Random RSA/EC Key Pair Demo - Online Cryptographic Visualization

Generate a dummy RSA or EC public/private key pair for educational visualization. Shows key structure and ASN.1 dump. Not for production use.

Education cryptography EC key pair RSA

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Subresource Integrity (SRI) Hash Generator - Online

Enter a CDN URL for a script or style and generate the integrity attribute with sha384 or sha512. Protect your site.

Developer Tools generate hash integrity SRI

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Regex Injection / ReDoS Tester - Online Safe Pattern Test

Test a regular expression against malicious inputs to detect catastrophic backtracking and ReDoS vulnerabilities. Educational.

Developer Tools injection ReDoS regex security

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Frontend JS Library Vulnerability Scanner - Online Check Version

Paste a URL or HTML to detect known vulnerable JavaScript library versions. Quick security audit. Client‑side only.

Developer Tools JavaScript scanner security vulnerability

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SSL Certificate & Key Pair Matcher - Online Verify Match

Paste an SSL certificate and private key to verify they belong together. Check if a CSR matches a private key. All local crypto.

Developer Tools certificate key match SSL

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Platform Authenticator Demo - Online Fingerprint & Face ID

Test your device's built‑in biometric (Touch ID, Face ID, Windows Hello) using the Web Authentication API. Register and verify.

API demo Face ID fingerprint WebAuthn

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Default Wi‑Fi Password Calculator - Online ISP Router Keygen

Enter a router's MAC address or serial and generate the common default WPA passphrase for major ISP brands. Educational purpose only.

Network generator password router Wi‑Fi

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PDF Script Inspector - Online See Embedded JavaScript

Drop a PDF and extract any embedded JavaScript or form actions. Check for malicious code. Privacy‑friendly analysis.

Document Tool inspector JavaScript PDF security

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Random Crypto Key Generator - Online Create API Tokens & Secrets

Generate strong random strings for API tokens, session secrets, or encryption keys. Uses crypto.getRandomValues().

Generator crypto generator key token

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Encrypted Note Taker - Online Write & Encrypt in Browser

Write notes that are encrypted in your browser before saving to localStorage. Only accessible with your passphrase.

Productivity AES encrypted notes secure

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Brute Force Time Estimator - Online Password Cracking Simulation

Enter a password and see the estimated time it would take to crack using brute force at different speeds. Educational.

Educational brute force crack password simulator

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Password Policy Visualizer - Online See Rules in Action

Define password rules and see a live checklist that updates as you type. Design better password UX for your app.

Security password policy rules UX visualizer

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PGP Message Viewer - Online Decode & Inspect

Paste an ASCII‑armored PGP message and view its packet structure. See the encrypted/plaintext blocks without decrypting.

Decoder message packet PGP viewer

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Hash Type Identifier - Online Guess MD5, SHA, Bcrypt

Paste a hash and the tool guesses which algorithm created it based on length and format. Useful for forensic analysis.

Forensics detect forensics hash identifier

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SQL Injection Simulator - Online Educational Sandbox

Test SQL injection inputs on a mock database and see the resulting query. Learn how to prevent SQLi. No real data.

Educational learn security simulator SQL injection

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XSS Payload Sandbox - Online Test Escape Characters

Paste a potential XSS vector and see if it executes in a sandboxed iframe. For security researchers and education.

Educational payload sandbox security XSS

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Security Headers Auditor - Online Check HSTS, CSP & More

Enter a website and check which security headers (HSTS, CSP, X‑Frame‑Options) are present. Get a security grade.

Network audit CSP HSTS security headers

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Zero‑Width Character Detector - Online Find Hidden Unicode

Paste text and instantly see if it contains hidden zero‑width characters often used in steganography. Reveal invisible payloads.

Security detector invisible Unicode zero width

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Reporting API Demo - Online See CSP & Deprecation Reports

Send a test CSP violation report and see the ReportingObserver in action. Understand how monitoring works.

Developer Tools CSP demo monitor Reporting API

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Image Metadata Remover - Online Clean Privacy Data

Remove all EXIF, IPTC, and XMP metadata from your photos. Strip GPS location. Protect your privacy before upload.

Image Tool EXIF metadata privacy remove

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Multi‑Format Checksum Generator - Online MD5, SHA, CRC

Paste text or drop a file and get checksums in multiple formats simultaneously. Compare with original. All local.

Developer Tools checksum MD5 multi‑format SHA

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BLAKE3 Hash Generator - Online Fast Cryptographic Hash

Generate a BLAKE3 hash of any text or file. Extremely fast. Perfect for checksums and content addressing. Local.

Developer Tools BLAKE3 checksum generator hash

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SHA‑3 / SHAKE Hash Generator - Online Extendable Output

Generate SHA‑3 and SHAKE hashes of any text with configurable output length. All local using js library.

Developer Tools generator hash SHA‑3 SHAKE

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Digital Signature Sign & Verify - Online Web Crypto

Sign a message with a private key and verify the signature with the public key. Learn digital signature flow.

Educational digital signature sign verify Web Crypto

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Web Crypto Key Generator - Online Generate RSA/EC Keys

Generate cryptographic key pairs using the Web Crypto API. Export as JWK or raw. No server needed; pure security.

Generator generator key RSA Web Crypto

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HTML Sanitizer API Demo - Online Safe Set HTML

Use the new Sanitizer API to safely insert raw HTML into the DOM. Blocks malicious tags. Experimental demo.

Developer Tools HTML safe Sanitizer API XSS

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Trusted Types API Demo - Online Prevent XSS

See how Trusted Types prevents unsafe HTML assignment. Test against injected scripts. Modern security practice.

Developer Tools demo security Trusted Types XSS

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JPEG EXIF Remover - Online Strip Metadata for Privacy

Remove all EXIF data (GPS, camera info) from a JPEG before uploading. Processed locally. Protect your privacy.

Image Tool EXIF JPEG privacy remover

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SSL Certificate Checker - Online Verify Expiry & Chain

Enter a domain and see its SSL certificate details: issuer, validity dates, and chain. Client‑side fetch.

Network certificate checker expiry SSL

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Password Pwned? Checker - Online k‑Anonymity

Check if a password appears in the Have I Been Pwned database using k‑Anonymity. Only the first 5 characters of the hash are sent.

Security breach checker password pwned

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SHA‑1, SHA‑256, SHA‑512 Hash Generator - Online

Generate SHA‑1, SHA‑256, SHA‑512, and SHA‑3 digests of any text or file. Verify integrity. All in your browser.

Developer Tools checksum generator hash SHA‑256

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Bcrypt Hash Generator - Online Password Hashing Tool

Generate a bcrypt hash from a password with configurable salt rounds. Verify a password against a hash. Entirely client‑side.

Generator bcrypt generator hash password

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AES Text Encrypt/Decrypt - Online Secure Message Tool

Encrypt and decrypt text using AES in the browser with a password. Uses Web Crypto API. No data sent to server.

Security AES decrypt encrypt secure

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SSL Cipher Suite Checker - Online Test TLS Security

Check which cipher suites a website supports and identify weak or outdated ones. Quick security audit from your browser.

Network checker cipher SSL TLS

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JWT Signature Verifier - Online HMAC/RSA/EC Check

Paste a JWT and a public key or secret to verify the signature. Supports HS256, RS256, ES256. All operations local.

Security HS256 JWT signature verify

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SSL Certificate Decoder - Online X.509 Viewer

Paste a PEM/DER certificate and decode all fields: issuer, subject, validity, SANs, and fingerprint. Pure JavaScript parser.

Developer Tools certificate decoder SSL X.509

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Email Header Analyzer - Online SPF, DKIM, DMARC Check

Paste raw email headers and see authentication results (SPF, DKIM, DMARC) in a readable table. Find spoofing attempts.

Network authentication email headers SPF

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DNSSEC Chain Validator - Online Check RRSIG & DS

Validate a DNSSEC chain by entering DS and RRSIG records. Verify that signatures match. Educational. Local algorithm.

Network DNS DNSSEC security validator

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Permissions‑Policy Header Parser - Online Decode & Check

Paste the Permissions‑Policy header and get a human‑readable table of allowed/blocked browser features. Understand how your site is restricted.

Parser header parser Permissions‑Policy security

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Content Security Policy Evaluator - Online Hash & Nonce Check

Test if a script or style will be allowed by a given CSP. Compute hash/nonce. Strengthen your site’s defense against XSS. Local.

Evaluator CSP evaluator security XSS

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WebAuthn Response Decoder - Online Unpack Attestation

Paste a raw WebAuthn attestation response (CBOR) and decode its fields: format, authenticator data, and extensions. Debug passkeys locally.

Debugging attestation decoder passkey WebAuthn

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Private State Token Demo - Online Anti‑Fraud Test

Issue and redeem Private State Tokens (formerly Trust Tokens). Understand how they help detect bots without cookies.

API anti‑fraud API privacy trust token

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WebAuthn Demo - Online Register & Authenticate

Create a passkey and authenticate using the Web Authentication API. Supports platform authenticators (TouchID, FaceID). No server.

API biometric passkey security WebAuthn

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X‑Frame‑Options Tester - Online Clickjacking Defense

Check if a URL can be embedded in an iframe. Test your site’s defense against clickjacking. Browser‑based.

Security clickjacking security test X‑Frame‑Options

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HSTS Header Checker - Online Strict‑Transport‑Security

Fetch a site’s HSTS header and validate its syntax, max‑age, and subdomain flags. Ensure your site enforce HTTPS.

Network checker header HSTS security

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Cross‑Origin Isolation Checker - Online COOP/COEP Test

Check if your site is cross‑origin isolated by examining the COOP and COEP headers. See if SharedArrayBuffer is available.

Diagnostic COEP COOP cross‑origin isolation

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CSP Analyzer - Online Test & Improve Policy

Paste a Content‑Security‑Policy header and get a human‑readable breakdown. See potential risks and suggestions.

Analyzer analyzer CSP header security

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Permissions‑Policy Header Generator - Online Security Config

Configure browser feature permissions (camera, microphone, geolocation) and generate the Permissions‑Policy HTTP header.

Generator generator header Permissions‑Policy security

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PBKDF2 Key Derivation Demo - Online Password‑Based Key

Derive a strong cryptographic key from a password using PBKDF2 with SHA‑256. Adjust iterations and salt. Educational and test tool.

Educational crypto key derivation password PBKDF2

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Self‑Signed TLS Certificate Generator - Online Testing

Generate a self‑signed X.509 certificate and private key for local development. All created in your browser. No server involved.

Developer Tools certificate generator self‑signed TLS

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CAA Record Generator - Online DNS Certification Authority

Create a CAA DNS record to specify which certificate authorities can issue SSL certs for your domain. Prevent mis‑issuance.

Network CAA certificate DNS SSL

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Argon2 Hash Generator - Online Modern Password KDF

Generate Argon2id hashes in the browser using a WASM compilation. Choose memory, iterations, and parallelism. Secure local hashing.

Generator Argon2 hash KDF password

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Bcrypt Hash Generator & Verifier - Online Password Hashing

Hash passwords using the bcrypt algorithm with configurable cost factor. Also verify a password against a stored hash. All local.

Generator bcrypt hash password verify

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HMAC Generator - Online SHA‑256/512 Message Authentication

Create an HMAC (Hash‑based Message Authentication Code) using SHA‑256 or SHA‑512 with a secret key. Verify data integrity. Local.

Generator authentication generator HMAC SHA‑256

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Text Encrypt/Decrypt (Web Crypto) - Online AES & RSA

Encrypt and decrypt text using the browser's Web Crypto API. Supports AES‑GCM and subtle key generation. No server required.

Security AES decrypt encrypt Web Crypto

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PGP Key Pair Generator - Online OpenPGP in Browser

Create a PGP key pair (RSA or ECC) directly in your browser with passphrase protection. Export public/private armored keys. No upload.

Generator generator key OpenPGP PGP

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BIP39 Mnemonic Generator - Online 12/24 Words

Generate cryptographically secure BIP39 mnemonic phrases (12 or 24 words) for HD wallet seeds. All entropy generated locally.

Generator BIP39 mnemonic seed wallet

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Certificate Signing Request (CSR) Generator - Online

Generate a CSR and private key pair in the browser using the Web Crypto API. Download both as files. No data sent to server.

Developer Tools certificate CSR generator SSL

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DMARC Record Generator - Online Email Policy Builder

Create a DMARC policy record with percentage, reporting addresses, and alignment mode. Validate and copy the final DNS TXT.

Network DMARC DNS email policy

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DKIM Record Generator - Online Public Key DNS Entry

Generate a DKIM DNS record from a public key and selector. Check syntax. Improve your domain’s email deliverability.

Network authentication DKIM DNS email