PureDevTools

Security & Privacy Tools

Security tools that are safe to use: secret scanning, API key detection, JWT analysis, certificate handling, and key generation. All data stays in your browser — nothing uploaded.

13 tools — All free, no sign-up, runs entirely in your browser.

.env Secret Scanner

Scan .env files and code for exposed API keys, passwords, and tokens.

API Key Detector

Detect exposed API keys from 15+ providers in source code.

JWT Vulnerability Analyzer

Decode JWT tokens and check for security vulnerabilities.

Secrets Redactor

Auto-redact API keys, tokens, and passwords from code and logs.

SSL Certificate Decoder

Decode PEM X.509 certificates and view all fields.

Certificate Chain Validator

Validate SSL/TLS certificate chain order and expiration.

CSR Generator

Generate Certificate Signing Requests with RSA keys in browser.

SSH Key Generator

Generate RSA and ECDSA SSH keypairs in your browser.

PGP Key Generator

Generate RSA key pairs for encryption and signing in browser.

Password Entropy Visualizer

Visual breakdown of password strength with entropy and crack time.

RSA Key Generator

Generate RSA public/private key pairs for encryption.

OAuth Token Debugger

Decode and inspect OAuth tokens for debugging auth flows.

Test Credit Card Numbers

Reference list of test credit card numbers for payment testing.

Explore More Categories