
A comprehensive collection of online tools for network engineers, including subnet calculators, password generators, OUI lookups, and more.
Subnet Calculator
Effortlessly calculate network subnets, IP address ranges, broadcast addresses, and subnet masks for any network configuration. Perfect for network planning and troubleshooting.
VLSM Calculator
Design an efficient IP addressing scheme using Variable Length Subnet Masks (VLSM). Optimize your address space by allocating subnets based on the specific host requirements of each segment.
Route Summarization Calculator
Calculate the most efficient summary route (supernet) for a given list of IP network prefixes. Essential for optimizing and scaling routing tables.
Data Transfer Time Calculator
Estimate the time it will take to transfer a file over a given network bandwidth. Useful for planning data migrations and downloads.
Throughput Calculator
Calculate the actual data throughput of a network connection in various units (Kbps, Mbps, Gbps) based on the amount of data transferred over a period of time.
QoS Cheat Sheet
A quick-reference for Quality of Service values. Look up DSCP and CoS markings, their meanings, and typical use cases for prioritizing network traffic.
Bandwidth Converter
Quickly convert between different bandwidth units, such as megabits per second (Mbps) to megabytes per second (MB/s), to understand transfer speeds and storage equivalents.
Cabling Distance/Loss Calculator
Determine the maximum recommended length for various network cable types (Copper and Fiber) and estimate the signal attenuation (loss) over the specified distance.
MAC Address Converter
Convert Media Access Control (MAC) addresses between common formats used by different vendors and systems, like Cisco, IEEE 802, and plain hexadecimal.
Cable Pinout Guide
An interactive visual guide for T568A, T568B, and Crossover ethernet cable pinouts, including details on Power over Ethernet (PoE) standards.
IP Address Converter
Translate any IPv4 address between its decimal, binary, and hexadecimal representations. A useful tool for understanding network masks and addresses at a lower level.
OUI Lookup Tool
Find the manufacturer of a network device by its MAC address OUI (Organizationally Unique Identifier).
Common Ports Tool
Quickly look up common TCP/UDP network ports to identify the services associated with them. A handy reference for firewall configuration and security analysis.
Secure Password Generator
Generate strong, random passwords with customizable length and character sets (uppercase, lowercase, numbers, symbols) for network devices and services.
What's My IP?
Quickly display your current public-facing IP address as seen by the internet. Useful for checking VPN connections or firewall configurations.
WHOIS Lookup
Retrieve the public registration data for any domain name or IP address. Find information about the domain owner, registrar, and name servers.
JSON & XML Converter
A versatile tool to format, validate, and convert data between JSON (JavaScript Object Notation) and XML (eXtensible Markup Language) formats.
URL Encoder/Decoder
Encode strings into a percent-encoded format for safe use in URLs, or decode them back into a human-readable format.
Base64 Converter
Encode text or data into a Base64 string, or decode a Base64 string back to its original form. Commonly used for data transmission in text-based formats.
Unix/Epoch Timestamp Converter
Convert between Unix/Epoch timestamps (the number of seconds since January 1st, 1970) and human-readable dates in your local timezone and UTC.
Cron Job Generator
Easily create and validate cron schedule expressions for scheduling automated tasks on Unix-based systems. Translate complex schedules into valid cron syntax.
Wifi Standards Reference
An interactive guide to 802.11 wireless standards (from 802.11b to Wifi 7). Compare max speeds, frequencies, channel widths, and key features.
Cisco DHCP Option 43 Converter
Generate the specific hexadecimal value for DHCP Option 43, used to inform Cisco Lightweight Access Points about the location of their wireless controller.
Wifi Channel Visualizer
Visualize the available, overlapping, and non-overlapping channels across the 2.4 GHz, 5 GHz, and 6 GHz Wifi bands for different channel widths.
Fresnel Zone Calculator
Calculate the required clearance for a wireless point-to-point link to avoid signal obstruction and ensure optimal performance.
EIRP Calculator
Calculate the Effective Isotropically Radiated Power (EIRP) of a wireless system by considering transmitter power, cable loss, and antenna gain.