Our IT Tools
We build and maintain free web tools designed specifically for IT professionals. Each tool is open, browser-based, and requires no installation or account.
Parse & diagnose logs instantly
Log Analyzer
Analyze Windows Event Viewer, Syslog, IIS, Apache, and other log formats. Identify errors, warnings, and patterns with instant visual highlighting.
Active Directory diagnostics made simple
DCDiag Analyzer
Paste your DCDiag output and get an instant, color-coded analysis. Quickly identify failing tests, replication issues, and DNS problems in your AD infrastructure.
Network planning & CIDR calculations
Subnet Calculator
Calculate subnet masks, network ranges, broadcast addresses, and usable host counts. Supports CIDR notation and splits networks into subnets with ease.
Plan your VLAN segmentation
VLAN Calculator
Design and calculate VLAN configurations for your network. Assign IDs, plan trunk ports, and visualize Layer 2 segmentation for your infrastructure.
Cryptographically strong passwords
Password Generator
Generate secure, random passwords with customizable rules: length, complexity, special characters, and entropy strength. Includes bulk generation and policy compliance checks.
Visualize your server rack layouts
Rack Designer
Design professional server rack diagrams with drag-and-drop simplicity. Add 1U/2U/4U equipment, manage power density, and export clean rack documentation.
All our tools are free to use, no account required.