SubNet Classer for Android by Libor Benes
Analyze IPv4 addresses for class, CIDR, binary, mask, wildcard, hosts, and subnets. Part of Professional Network Toolkit, along with SubNet Calc for Android.
Extension Metadata
About this extension
Professional Network Toolkit: SubNet Classer for Android and SubNet Calc for Android form a complete mobile networking solution for professionals. While SubNet Calc focuses on subnet calculations and network planning, SubNet Classer specializes in IP address analysis and classification - providing complementary functionality for comprehensive network management on mobile devices.
• Instant IP Analysis: Enter any IPv4 address with optional CIDR (e.g., 192.168.1.1/24) to get detailed class, binary, mask, wildcard, hosts, and subnet information.
• Mobile-Optimized Display: Clean, responsive interface designed for both portrait and landscape orientations with touch-friendly controls.
• Reference Tables: View complete IPv4 class table (A-E) with ranges, masks, CIDR values, and host counts.
• Expandable References: Access IPv4 subnetting formulas and IPv6 basics in collapsible, space-saving sections.
• Copy Functionality: One-tap copying of results as formatted plain text for documentation or use in other apps.
Security & Privacy Prioritization:
• Offline Operation: All calculations performed locally - no network access required, no data transmission.
• Zero Data Collection: No user data is collected, stored, or transmitted.
• Minimal Permissions: Requires only clipboard access for copying results.
• Safe Coding Practices: No innerHTML or eval; uses secure DOM manipulation methods.
• Input Validation: Comprehensive validation and sanitization of all user inputs.
• Mozilla Compliance: Adheres to Manifest v2 standards and Firefox Mobile requirements.
• No External Dependencies: Pure HTML/CSS/JS implementation for maximum reliability.
Perfect For:
• Network engineers needing quick IP analysis in the field.
• System administrators verifying configurations on mobile devices.
• IT professionals requiring instant subnetting references.
• Students studying networking concepts and IP addressing.
Key Features:
• Calculates IPv4 class (A, B, C, D, E) from any valid address.
• Displays 32-bit binary representation with mobile-optimized formatting.
• Computes subnet mask, wildcard mask, usable hosts, and subnet count.
• Highlights corresponding class in reference table for visual confirmation.
• Handles edge cases with clear, informative error messages.
Usage:
• Enter an IP address (with optional CIDR notation), tap Analyze, and get instant results. Tap Copy to save formatted output to clipboard.
• Instant IP Analysis: Enter any IPv4 address with optional CIDR (e.g., 192.168.1.1/24) to get detailed class, binary, mask, wildcard, hosts, and subnet information.
• Mobile-Optimized Display: Clean, responsive interface designed for both portrait and landscape orientations with touch-friendly controls.
• Reference Tables: View complete IPv4 class table (A-E) with ranges, masks, CIDR values, and host counts.
• Expandable References: Access IPv4 subnetting formulas and IPv6 basics in collapsible, space-saving sections.
• Copy Functionality: One-tap copying of results as formatted plain text for documentation or use in other apps.
Security & Privacy Prioritization:
• Offline Operation: All calculations performed locally - no network access required, no data transmission.
• Zero Data Collection: No user data is collected, stored, or transmitted.
• Minimal Permissions: Requires only clipboard access for copying results.
• Safe Coding Practices: No innerHTML or eval; uses secure DOM manipulation methods.
• Input Validation: Comprehensive validation and sanitization of all user inputs.
• Mozilla Compliance: Adheres to Manifest v2 standards and Firefox Mobile requirements.
• No External Dependencies: Pure HTML/CSS/JS implementation for maximum reliability.
Perfect For:
• Network engineers needing quick IP analysis in the field.
• System administrators verifying configurations on mobile devices.
• IT professionals requiring instant subnetting references.
• Students studying networking concepts and IP addressing.
Key Features:
• Calculates IPv4 class (A, B, C, D, E) from any valid address.
• Displays 32-bit binary representation with mobile-optimized formatting.
• Computes subnet mask, wildcard mask, usable hosts, and subnet count.
• Highlights corresponding class in reference table for visual confirmation.
• Handles edge cases with clear, informative error messages.
Usage:
• Enter an IP address (with optional CIDR notation), tap Analyze, and get instant results. Tap Copy to save formatted output to clipboard.
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Permissions and data
Required permissions:
- Input data to the clipboard
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0
- Size
- 22.69 kB
- Last updated
- 6 days ago (27 Dec 2025)
- Related Categories
- Licence
- Mozilla Public Licence 2.0
- Version History
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