Privacy and scope
Know where tool data is handled
Some tools run in your browser. Tools that need live lookup or enrichment may call a site API. Avoid sensitive inputs unless a tool clearly explains the handling boundary.
Tools
Tools
Browse practical cybersecurity utilities for vulnerability work, domains, email, certificates, data formats, detection, and reporting.
Tool categories
Choose the utility group that matches the task
Each category keeps a short purpose, a few tool links, and a route into related reference material.
Tool category
Vulnerabilities
Score, parse, compare, and prepare vulnerability evidence.
Tool category
Domain and Website
Inspect DNS, TLS, ranges, and web-facing clues.
Tool category
Review headers and mail-authentication records.
Tool category
Tokens and Certificates
Inspect tokens, certificates, hashes, passwords, and encoded strings.
Tool category
Data and Formats
Format, convert, compare, and parse analyst text.
Tool category
Detection
Draft and inspect detection material, hunts, IOCs, and ATT&CK mappings.
Tool category
Communication and Reporting
Build copyable notes, reports, handoffs, and evidence summaries.
Popular tools
Common utilities
CVSS Calculator
Score base severity from CVSS metric choices.
Open toolDNS Lookup
Review public DNS and ownership context.
Open toolTLS / Certificate Decoder
Inspect certificate metadata and dates.
Open toolEmail Header Analyzer
Review routing and authentication clues.
Open toolSPF / DKIM / DMARC Checker
Check mail-authentication DNS records.
Open toolJWT Decoder
Decode token header and claims locally.
Open toolJSON Formatter
Format JSON or inspect parse errors.
Open toolSigma Helper
Build a starter detection rule draft.
Open toolFiltered tool rows
Matching tools
Each row shows what the tool does, how it runs, and the input sensitivity note before opening it.
Related paths
Use context before turning output into a decision
Tools help inspect, format, calculate, or draft. Use related references and Intelligence pages before treating output as evidence.