CLIENT-SIDE TOOLKIT / NO SERVER REQUIRED
Security
workbench.
Fast utilities for common IT and security checks. Inputs stay in your browser for these tools.
CIDR Calculator
IPv4 network, broadcast and usable host range.
JSON Formatter
Validate and pretty-print JSON locally.
JWT Decoder
Decode JWT header and payload locally. Signature is not verified.
Unix Timestamp
Convert Unix seconds or a date to both representations.
Base64
Encode/decode text using browser APIs.
HTTP Header Reference
Quick security-oriented header checklist.
Content-Security-Policy
Strict-Transport-Security
X-Content-Type-Options
Referrer-Policy
Permissions-Policy
Cross-Origin-Opener-Policy
Cross-Origin-Resource-Policy