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Security & Privacy Tools
Client-side security and privacy utilities. Analyze HAR traces, decode certificates, debug JWTs, and redact sensitive PII without uploading anything to a server.
verified_userSecure: Zero Uploads
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HAR File Viewer & Sanitizer
Analyze HTTP Archive (.har) logs with waterfall charts and sanitize auth tokens/cookies.
View HAR logarrow_forward
verified_user
SSL Certificate Decoder & CSR Generator
Decode X.509 PEM certificates and generate CSRs with private keys in your browser.
Decode certarrow_forward
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JWT Debugger & Secret Verifier
Decode JSON Web Tokens and verify HMAC signatures offline without sharing secrets.
Debug JWTarrow_forward
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PII Data Redactor & Anonymizer
Detect and mask emails, credit cards, IP addresses, and SSNs in text or logs.
Redact PIIarrow_forward
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More coming soon
We are building new browser-based tools every week.