PacketWizard

Engineer's toolbox

Dashboard Settings

Network

ASN Lookup Certificate Viewer CIDR Calculator DNS Health Analyzer DNS Lookup HTTP Inspector Internet Speed Test IP Intelligence Analyzer IPv4 Subnet Calculator IPv6 Subnet Calculator MAC Address Lookup OUI Lookup Port Check Reverse DNS TLS Inspector User-Agent Parser What Is My IP WHOIS / RDAP Lookup View all network

Mail Authentication

BIMI Inspector DKIM Inspector DMARC Analyzer DMARC Builder Exchange Header Analyzer MTA-STS Inspector SPF Builder SPF Inspector TLS-RPT Inspector View all mail authentication

Identity

Certificate Decoder Federation Metadata Inspector JWK Inspector JWT Generator JWT Inspector OAuth Inspector OpenID Discovery Viewer SAML Metadata Viewer SAML Response Viewer View all identity

Security

Password Generator Password Strength Security Headers SSL Checker View all security

Logs

Event Viewer Parser Generic Log Viewer IME Log Analyzer Windows Update Analyzer View all logs

Utilities

Base64 Encode/Decode Binary Encode/Decode Epoch Converter GUID Generator Hash Generator Hex Encode/Decode HMAC Generator HTML Encode/Decode JSON Formatter Markdown Preview Passphrase Generator Regex Tester Text Case Converter Text Diff URL Encode/Decode XML Formatter YAML Formatter View all utilities

AI

AI Troubleshooter Investigation Summary Root Cause Analyzer View all ai

System

Online

64

Tools

51

APIs

100%

Local

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Operational

PW

Certificate Viewer

Parse and display X.509 certificate details from PEM, Base64, or DER.

Certificate input

Paste a PEM/Base64 certificate or upload a file

Certificate

Field note

Validate the full chain on the endpoint, not just the leaf certificate shown in the browser.