# Security

Security Developer Tools

Free browser-based security developer tools. 56 tools — no installs, no sign-ups, open and use instantly.

56 tools available
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Binary XOR Calculator
Binary XOR Calculator for faster developer workflows
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CSV Row Deduplicator
Find and remove duplicate rows from CSV data by one or more key columns
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HTML Input Type Explorer
HTML Input Type Explorer for faster developer workflows
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JS Event Listener Debugger
JS Event Listener Debugger for faster developer workflows
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JSON Type Analyzer
JSON Type Analyzer for faster developer workflows
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Meta Description Generator
Generate compelling meta descriptions within the 155-character limit
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Page Title Analyzer
Page Title Analyzer for faster developer workflows
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Password Entropy Calculator
Password Entropy Calculator for faster developer workflows
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Private Key Format Converter
Private Key Format Converter for faster developer workflows
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SHA-3 Hash Generator
SHA-3 Hash Generator for faster developer workflows
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TOTP Code Generator
TOTP Code Generator for faster developer workflows
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Bcrypt Hash Generator
Hash passwords with bcrypt
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Bcrypt Hash Verifier
Verify a password against a bcrypt hash
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CSRF Token Generator
Generate cryptographic tokens for form protection
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File Content Hash Checker
Compute md5, sha-256 of any file — no upload needed
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HTTP Header Analyzer
Paste headers → detect misconfigs in one click
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OAuth State Generator
Generate secure state tokens to prevent CSRF in OAuth flows
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Passphrase Generator
Create strong, memorable word-based passphrases
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Password Policy Tester
Define rules, test compliance, enforce standards
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PGP Key Info Parser
Extract fingerprint, algorithm, and uid from pgp keys
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Secret Key Generator
Generate secure random secrets instantly
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Secure Random Bytes Generator
Generate cryptographically secure random bytes
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SHA-256 Hasher
Generate sha-256 digest client-side, zero server contact
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SQL Injection Pattern Tester
Scan inputs for sql injection patterns instantly
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XSS Input Sanitizer
Escape html entities to block xss attacks
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Advanced Password Generator
Generate strong custom passwords
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Hex Encoder / Decoder
Encode and decode hexadecimal text
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Base32 Encoder / Decoder
Encode and decode Base32 data
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Base58 Encoder / Decoder
Encode and decode Base58 data
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Base85 Encoder / Decoder
Encode and decode Base85 data
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ASCII / Unicode Converter
Convert characters between ASCII and Unicode
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Unicode Code Point Inspector
Inspect Unicode code points
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Data URI Generator
Generate Data URI strings
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PEM Formatter
Format PEM certificates and keys
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PEM Inspector
Inspect PEM block contents
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CSR Decoder
Decode certificate signing requests
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SSH Public Key Parser
Parse SSH public keys
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Checksum Verifier
Verify file checksums quickly
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Random String Generator
Generate random strings with rules
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Nonce Generator
Generate secure nonce values
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UUID Validator
Validate UUID formats
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ULID Validator
Validate and inspect ULID values
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Nano ID Generator
Generate Nano ID strings
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Hash Compare Tool
Compare hashes and digests
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JWT Claims Inspector
Inspect JWT payload claims
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X.509 Name Parser
Parse certificate subject fields
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API Key Generator
Generate random API keys
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Webhook Signature Verifier
Verify webhook signatures locally
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Password Generator
Password Generator — free online tool
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Password Strength Checker
Check password strength in one click
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Bcrypt Generator
Bcrypt Generator — free online tool
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RSA Key Generator
RSA Key Generator — free online tool
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SSL Certificate Decoder
Encode and decode ssl certificate
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CSP Generator
CSP Generator — free online tool
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CORS Header Generator
CORS Header Generator — free online tool
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Password Vault Tester
Test password vault security