Free Tools / AGR Networks
Free utilities for network engineers and IT professionals. Everything runs in your browser — no signup, no tracking, no data sent anywhere.
Networking
Subnet analysis, host ranges, and network breakdowns.
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Hardware
OUI vendor lookup and MAC address analysis.
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Security
Searchable database of 100+ TCP/UDP ports.
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Security
Secure passwords and passphrases with strength analysis.
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Tool 01 / 04
Enter a network address in CIDR notation to get a complete subnet breakdown — host ranges, masks, capacity, and binary representation.
Quick prefix
Examples
Tool 02 / 04
Decode any MAC address to identify the vendor, address type, and all common notation formats. Accepts colon, hyphen, and Cisco dot notation.
Examples
Tool 03 / 04
Searchable database of common TCP/UDP ports. Filter by protocol, category, or search by port number or service name.
85 ports · Click a highlighted row for security notes
Commonly exploited or high-risk port·Click to view security notes
Tool 04 / 04
Generate cryptographically secure passwords and passphrases with customizable complexity. Includes strength analysis and estimated crack time.
Generated Password
Generating…
Strength
ExcellentEntropy
103 bits
Pool Size
88 chars
Crack Time
millions of years
Options
Quick Presets
Bulk Generate
Click "Generate" to create 5 passwords at once.
Built by AGR Networks — we design, deploy, and manage the networks these tools help you work with. Learn more →
