SubNet Classer for Android 作者： 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.
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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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