HailBytes Engineering Toolkit от HailBytes

HailBytes Engineering Toolkit is a comprehensive extension for network engineers, security professionals, and cloud architects.

Every calculation runs locally in your browser. No data is transmitted anywhere.

Free Tools:
Subnet Calculator (CIDR notation, host ranges, subnet masks)
IP Address Converter (decimal, binary, hex, class, RFC 1918)
Password Strength Checker (scoring and suggestions)
Base64 Encoder/Decoder
URL Parser (protocol, host, path, query params)
Epoch Timestamp Converter
AWS Cost Estimator

Pro Tools ($2.99/month):
VLSM Calculator
Bandwidth Calculator
DNS Record Reference (10 record types)
CIDR Range Expander
Hash Generator (SHA-256, SHA-1, MD5)
Common Ports Reference (55+ ports)
JWT Decoder
Security Headers Generator (CSP, HSTS, X-Frame-Options)
Network ACL Generator (Cisco IOS, iptables, AWS SG, nftables)
Multi-Cloud Resources (AWS, Azure, GCP)
Kubernetes Resource Calculator

Why this toolkit?
Privacy-first: zero network requests for calculations
Manifest V3 built for modern browsers
Designed by engineers for daily workflows
Source: https://github.com/hailbytes/engineeringtoolkit