175 Free Security Tools — Passwords, Hashes & Keys
Generate secure passwords, hash data, and manage keys safely in your browser. No signup required.
Password Tools
· 15Password Generator
Configurable strong password generator
Password Strength Checker
Score and analyze password strength
Passphrase Generator
Diceware-style memorable passphrases
Password Entropy Calculator
Compute Shannon entropy in bits
Password Pattern Analyzer
Detect common patterns and weaknesses
Common Password Checker
Check against a list of common passwords
Password Length Estimator
Estimate crack time by length
PIN Generator
Random PIN codes of any length
Memorable Password Generator
Word + symbol blended passwords
Password Comparison Tool
Compare two passwords side by side
SoonPassword Policy Validator
Validate against a custom policy
SoonRandom Username Generator
Generate privacy-friendly usernames
SoonPassword Aging Calculator
Estimate password rotation windows
SoonPassword History Auditor
Detect reuse across local list
SoonMaster Password Helper
Derive site passwords from a master
Cryptography
· 25AES Encryption/Decryption Tool
AES-GCM encrypt/decrypt in browser
RSA Key Generator
Generate RSA keypair in browser
SoonRSA Encrypt/Decrypt Tool
RSA-OAEP encrypt and decrypt
SoonRSA Sign & Verify Tool
RSA-PSS sign and verify
Elliptic Curve Key Generator
Generate ECDSA keypair in browser
SoonECDSA Sign & Verify Tool
Sign and verify with ECDSA
SoonPGP Public Key Formatter
Reformat PGP public key blocks
SoonPGP Message Formatter
Wrap text into PGP armor
SoonDES/3DES Educational Tool
Educational legacy cipher demo
SoonChaCha20 Encryption Tool
Local ChaCha20 encrypt/decrypt
Caesar Cipher Tool
Classic shift cipher
Vigenère Cipher Tool
Polyalphabetic key cipher
XOR Cipher Tool
XOR-based stream cipher
One-Time Pad Generator
Generate true random pads
SoonSubstitution Cipher Tool
Monoalphabetic substitution
SoonTransposition Cipher Tool
Columnar transposition cipher
Rail Fence Cipher Tool
Zig-zag transposition cipher
SoonPlayfair Cipher Tool
5x5 digraph cipher
Base64 Security Encoder
Base64 with safety options
SoonCrypto Algorithm Comparison
Compare algorithms reference
SoonDiffie-Hellman Visualizer
Walk through DH key exchange
SoonKey Derivation Reference
KDF reference (PBKDF2/HKDF)
SoonNonce Generator
Generate cryptographic nonces
SoonIV Generator
Generate initialization vectors
SoonCipher Suite Reference
TLS cipher suite explorer
Hashing Tools
· 20MD5 Hash Generator
Compute MD5 digest (legacy)
SHA-1 Hash Generator
Compute SHA-1 digest
SHA-256 Hash Generator
Compute SHA-256 digest
SHA-384 Hash Generator
Compute SHA-384 digest
SHA-512 Hash Generator
Compute SHA-512 digest
SoonSHA-3 Hash Generator
Compute SHA-3 digest
SoonRIPEMD-160 Hash Generator
Compute RIPEMD-160 digest
SoonBLAKE2 Hash Generator
Compute BLAKE2 digest
SoonKeccak-256 Hash Generator
Compute Keccak-256 digest
HMAC Generator
Compute HMAC with SHA family
SoonArgon2 Hash Simulator
Argon2 parameters reference
SoonBcrypt Hash Generator
Bcrypt reference & simulator
Soonscrypt Hash Simulator
scrypt parameters reference
Hash Comparison Tool
Constant-time hash compare
File Hash Verifier
Verify file integrity by hash
SoonCRC32 Calculator
Compute CRC32 checksum
SoonAdler-32 Calculator
Compute Adler-32 checksum
SoonMurmurHash Reference
Non-cryptographic hash reference
SoonxxHash Reference
Fast non-crypto hash reference
SoonHash Iteration Simulator
Simulate iterative hashing
Encoding & Obfuscation
· 15Base64 Encoder/Decoder
Encode and decode Base64
Base32 Encoder/Decoder
Encode and decode Base32
Base85 Encoder/Decoder
Ascii85 encode and decode
Hex Encoder/Decoder
Encode and decode hexadecimal
ROT13 Encoder
Apply ROT13 transformation
URL Encode/Decode
Percent-encode and decode URLs
HTML Entity Encode/Decode
Encode/decode HTML entities
SoonJavaScript Obfuscator
Basic JS obfuscation
SoonUnicode Obfuscation Tool
Insert confusables and marks
Punycode Encoder/Decoder
IDN punycode conversion
SoonBinary Encoder/Decoder
Text ↔ binary representation
SoonOctal Encoder/Decoder
Text ↔ octal
SoonMorse Code Translator
Morse encode and decode
SoonQuoted-Printable Encoder
Encode quoted-printable
SoonUUEncode/Decode
Legacy uuencoding
Steganography
· 15Text Steganography Tool
Hide text using whitespace
SoonImage Steganography Tool
LSB image steganography in browser
SoonAudio Steganography Reference
Audio stego concepts reference
SoonSteganography Detector
Basic LSB anomaly detector
Zero-Width Character Inserter
Hide messages in zero-width chars
SoonInvisible Text Encoder
Encode using invisible Unicode
SoonHomoglyph Text Obfuscator
Swap with look-alike glyphs
SoonWatermarked Text Encoder
Embed invisible watermarks
SoonDigital Fingerprint Inserter
Unique tag per recipient
SoonCanary Token Reference Builder
Build canary token references
SoonWhitespace Steganography
Hide with tabs/spaces
SoonMarkdown Steganography
Hide in markdown comments
SoonEmoji Steganography
Hide bits in emoji variations
SoonComment Steganography
Hide in code comments
SoonMetadata Steganography
Use file metadata fields
Network & Web Security
· 15SSL Certificate Inspector
Inspect PEM certificate details
SoonCSR Decoder
Decode certificate signing requests
SoonPEM Certificate Decoder
Parse PEM-encoded data
SoonX.509 Certificate Parser
Parse X.509 fields
JWT Decoder
Decode JWT header & payload
JWT Encoder
Build a signed JWT (HS256)
JWT Validator
Validate JWT structure & claims
JWT Signature Verifier
Verify HS256 signatures
API Key Format Validator
Validate common API key formats
SoonOAuth 2.0 Flow Reference
Flow chooser reference
SoonCORS Preflight Reference
CORS header reference
SoonDNSSEC Reference
DNSSEC record explainer
SoonTLS Version Reference
TLS version comparison
SoonHSTS Header Builder
Build HSTS headers
SoonPublic Key Pinning Reference
HPKP/Expect-CT reference
Privacy Tools
· 15Personal Data Audit Checklist
Track your personal data exposure
SoonData Minimization Checklist
Reduce collected data
SoonPrivacy Risk Assessment
PIA template
SoonGDPR Rights Reference
GDPR data subject rights
SoonCCPA Rights Reference
CCPA consumer rights
SoonPrivacy Policy Analyzer
Privacy policy review template
SoonCookie Consent Checklist
Cookie banner requirements
SoonThird-Party Tracker Reference
Common trackers reference
SoonMetadata Cleaner Reference
Metadata removal checklist
SoonBrowser Fingerprint Reference
Fingerprinting vectors reference
SoonDNT Header Reference
Do Not Track header
SoonEmail Privacy Checker
Email leak/header reference
SoonPhoto EXIF Reference
EXIF privacy fields
SoonTelemetry Opt-Out Reference
Common opt-out steps
SoonPrivacy Settings Wizard
Walkthrough common services
Security Auditing
· 15OWASP Top 10 Reference
Browse OWASP Top 10 risks
SoonWeb Security Checklist
Build a custom checklist
SoonInput Validation Reference
Validation patterns reference
SoonXSS Prevention Checklist
Prevent cross-site scripting
SoonSQL Injection Prevention
SQLi prevention reference
SoonCSRF Prevention Reference
Mitigate CSRF attacks
SoonSecurity Header Checker
Manual header review tool
Content Security Policy Builder
Build a CSP directive
CSP Validator
Validate CSP in browser
Subresource Integrity Generator
Build SRI hashes for scripts
SoonClickjacking Prevention
X-Frame-Options reference
SoonMixed Content Checker
Find mixed content reference
SoonSameSite Cookie Reference
Cookie SameSite explainer
SoonPermissions-Policy Builder
Build Permissions-Policy
SoonReferrer-Policy Reference
Referrer-Policy options
Penetration Testing Reference
· 15Reconnaissance Checklist
Recon planning template
SoonVulnerability Assessment
VA template
SoonCVE Reference Browser
Manual CVE reference
SoonCVSS Score Reference
CVSS scoring reference
SoonThreat Modeling Canvas
STRIDE canvas
SoonAttack Surface Mapper
Manual surface mapping
SoonSecurity Test Case Builder
Build security test cases
SoonPayload Encoding Tool
Educational payload encoder
SoonSecurity Report Template
Report template builder
SoonBug Bounty Submission Template
Structured bounty report
SoonKill Chain Reference
Cyber kill chain explainer
SoonMITRE ATT&CK Reference
ATT&CK tactics reference
SoonOSINT Source Reference
OSINT sources catalog
SoonRed Team Playbook Template
Red team plan template
SoonBlue Team Playbook Template
Defender playbook template
Accessibility & Compliance
· 15WCAG 2.1 Compliance Checklist
WCAG checklist
SoonSection 508 Compliance Checklist
Section 508 reference
SoonISO 27001 Control Reference
ISO 27001 controls
SoonPCI DSS Requirement Reference
PCI DSS reference
SoonSOC 2 Criteria Reference
SOC 2 trust criteria
SoonHIPAA Privacy Rule Reference
HIPAA privacy rule
SoonIncident Response Checklist
Incident response steps
SoonData Breach Response Template
Breach notification template
SoonSecurity Policy Template Builder
Build a security policy
SoonSecurity Awareness Quiz Builder
Local quiz builder
SoonNIST CSF Reference
NIST CSF functions
SoonFedRAMP Reference
FedRAMP overview
SoonGDPR Compliance Checklist
GDPR compliance steps
SoonCOPPA Reference
Children's privacy reference
SoonFERPA Reference
Education records reference
Security Utilities
· 10UUID Generator
Generate UUID v4
Random Bytes Generator
Cryptographically random bytes
SoonTime-based OTP Reference
TOTP/HOTP reference
SoonQR Code Privacy Checker
QR safety checklist
SoonSecure Notes (local)
Encrypted local-only notes
SoonSecure Clipboard Reference
Clipboard hygiene tips
SoonFile Shredder Reference
Secure deletion guidance
SoonVPN Comparison Reference
VPN comparison template
SoonTor Usage Reference
Tor basics reference
SoonE2E Messaging Reference
Comparison of E2E messengers