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More free IT tools

Windows and Microsoft 365

Commands: PowerShell, CMD and Bash side by side
Exchange builder: Permissions, forwarding, mailboxes
Entra and Intune commands: Graph PowerShell for users and devices
Error code lookup: Windows, Office and Intune codes
Event ID lookup: What an event means and where to look
Keyboard shortcuts: Windows, Outlook, Teams and run commands

Utilities

Password generator: Temporary passwords and passphrases
File hash checker: Compare SHA-256 against the vendor's
Encode and decode: Base64, URL and JWT
Time zone converter: Schedule a change window across offices

Networking

RJ45 pinouts: T568A and B, crossover, rollover
Subnet calculator: Size by device count or address
Port reference: Common ports with test commands
DNS lookup: A, MX, TXT, SPF and DMARC records
MAC vendor lookup: Find who made a device on the network
IPv6 calculator: Prefixes, ranges and shorthand

Software and news

Clean downloads: Enterprise installers and winget scripts
Admin portals: Microsoft, AWS, Google, Okta, Zoom and more
Service status: Is Microsoft 365, Zoom, Claude or OpenAI down?
Daily IT news: Security, advisories and IT headlines