
SubNet Classer by Libor Benes
Analyze IPv4 addresses for class, CIDR, binary, mask, wildcard, hosts, and subnets.
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Extension Metadata
About this extension
Accurate IPv4 analyzer, complementing SubNet Calc.
• Enter an IPv4 address and optional CIDR (e.g., 192.168.1.1/24) to get detailed output.
• Copy results as plain text for documentation or monospaced editors (e.g., Notepad++, Excel).
• View IPv4 class table.
Security Prioritization:
• Minimal Design: Compact sidebar.
• Offline Operation: All calculations are local, ensuring privacy. No user data is collected or transmitted.
• Minimal Permissions.
• Safe Coding.
• Mozilla Compliance.
• Safe Error Handling.
• No Dependencies.
• Enter an IPv4 address and optional CIDR (e.g., 192.168.1.1/24) to get detailed output.
• Copy results as plain text for documentation or monospaced editors (e.g., Notepad++, Excel).
• View IPv4 class table.
Security Prioritization:
• Minimal Design: Compact sidebar.
• Offline Operation: All calculations are local, ensuring privacy. No user data is collected or transmitted.
• Minimal Permissions.
• Safe Coding.
• Mozilla Compliance.
• Safe Error Handling.
• No Dependencies.
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Permissions and dataLearn more
Required permissions:
- Input data to the clipboard
More information
- Add-on Links
- Version
- 1.0
- Size
- 17.54 KB
- Last updated
- 2 months ago (Aug 16, 2025)
- Related Categories
- License
- Mozilla Public License 2.0
- Version History
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