NETWORKING TOOLS
NetITPro · Free Resources
Free Networking
Tools
Professional-grade networking calculators and generators for network engineers and CCNA/CCNP students. No sign-up, no paywalls on the essentials.
100% free core tools
No sign-up required
CCNP level depth
Updated 2026
Networking tools
3 tools
Free
CCNA
CCNP
Networking
Subnet Calculator
Enter any IPv4 address and CIDR prefix to instantly calculate network address, broadcast address, subnet mask, wildcard mask, usable host range, and full binary breakdown. Includes IP class detection and RFC 1918 identification.
Network address
Broadcast
Subnet mask
Wildcard mask
Binary breakdown
RFC 1918
Open tool
Free
CCNP
Networking
VLSM Calculator
Allocate variable-length subnets from any IPv4 network. Add subnet names and required hosts — the calculator assigns optimised CIDR blocks using the largest-first algorithm. Visual address space bar and CSV export included.
Largest-first
Unlimited subnets
Address space bar
CSV export
Efficiency meter
Open tool
Developer & utility tools
5 tools
Free
Developer
Base64 Encode / Decode
Instantly encode text or data to Base64 and decode Base64 strings back to plain text. Useful for API payloads, JWT tokens, and email attachments.
EncodeDecodeJWTAPI
Open
Free
Security
Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 cryptographic hashes from any text input. Useful for checksums, password verification and data integrity checks.
MD5SHA-1SHA-256SHA-512
Open
Free
Developer
JSON Formatter
Format, validate and minify JSON with syntax highlighting. Paste raw JSON to beautify it, or minify formatted JSON for production use. Catches syntax errors instantly.
BeautifyMinifyValidateSyntax check
Open
Free
Security
Strong Password Generator
Generate cryptographically secure random passwords with customisable length, uppercase, lowercase, numbers and special characters. Never store your passwords online.
Custom lengthSpecial charsSecure random
Open
Free
Networking
What Is My IP Address
Instantly detect your public IP address, ISP, approximate location, and connection type. Useful for firewall rules, remote access setup, and VPN verification.
Public IPISPLocationIPv4 / IPv6
Open
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