Laptop with a network dashboard beside a digital information display

Tartanleaf Open Source

Free Tools & Open-Source Projects

Practical resources that make everyday technology simpler — including a free browser toolkit and open-source software you can download, inspect, adapt, and share.

Technology That Stays Understandable

Tartanleaf develops small, practical resources around real problems. They are free community resources rather than subscription services or supported commercial products.

HomeNetCheck Windows app showing gateway, DNS, double NAT, and UPnP results
HomeNetCheck turns the homenet diagnostic engine into a plain-language graphical report. This interface image comes from an early build; current downloads are version 0.1.4. Network addresses in this example have been sanitized.

Recommended for most people

HomeNetCheck + homenet

One home-network diagnostic project, with two ways to use it. Both check common problems such as router reachability, DNS, double NAT, latency, internet speed, and Wi-Fi, then explain what the results mean.

  • HomeNetCheck is the graphical desktop app for Windows, macOS, and Linux. Download it, open it, and click Check my network.
  • homenet is the command-line engine for scripts, automation, remote support, and people who prefer a terminal.

Free and open source · MIT License · No subscription

View HomeNetCheck source · Send feedback
View the homenet CLI on GitHub →

See how HomeNetCheck fits with the book, free baseline pack and browser Toolkit →

HomeNetCheck downloads are not code-signed, so your operating system may show a first-run warning. The opening instructions explain why and what to check.

Free browser-based companion

Smart Tech Toolkit

Practical help for everyday technology decisions. Use the Network Helper, privacy and device planners, safety and scam checks, and plain-language guides without creating an account.

Free to use · No account · Answers stay on your device · Works offline once visited

Smart Tech Toolkit home screen showing safety checks, planning tools, and practical guides
Smart Tech Toolkit brings safety checks, planners, and plain-language guides together in one browser-based companion.
Tech Passport dashboard showing documented items, attention checks, and export reminders
Tech Passport’s empty dashboard keeps recovery planning visible without storing passwords or recovery secrets.

Local-first recovery planner

Tech Passport

Create an understandable record of the devices, accounts, backups, dependencies, and recovery information your life relies on. Tech Passport is a free, open-source browser app that works offline after its first load and requires no account.

Free and open source · No account · No analytics · Records stay in this browser profile

Back up your Passport: Clearing site data, changing browser profiles, or losing the device can remove your records. Export a JSON backup after setup and whenever you make important changes, then store it somewhere secure. Do not enter passwords, recovery codes, private keys, or seed phrases.

Local-AI observation and reporting tool · Desktop preview

AI Engine Room

A free, open-source desktop app that helps you see which supported local AI tools are running on your computer, understand what the app can observe, and create a plain-language report.

Windows and Ubuntu preview · Free and open source · No account or usage tracking

AI Engine Room browser-development preview showing runtime and system-observation cards with artificial fixture data
AI Engine Room browser-development preview. All values shown are artificial fixture data, not real system telemetry.
Open Lobby Board running at Gisele’s Inn in Baddeck, showing weather, events, guest information, and redacted example QR codes
Open Lobby Board running at Gisele’s Inn in Baddeck, Nova Scotia. The guest-network QR in this publication image encodes only redacted; no network credential is included.

For small hospitality spaces

Open Lobby Board

A local-first welcome board for hotels, inns, B&Bs, restaurants, event venues, and reception spaces. It runs on a Raspberry Pi connected to a lobby display, while staff update the board from a phone or computer on the same trusted local network.

There is no subscription, cloud account, advertising service, database, or hosted dependency. The sample content remains set in Baddeck, Nova Scotia, where the project was originally developed for Gisele’s Inn.

Free and open source · MIT License · Locally controlled

Questions and feedback on GitHub →

Read the case study: What a Local Lobby Display Changed at a Nova Scotia Inn

This is an example project for technically comfortable operators. It is designed for a trusted, non-routable local network and must not be exposed to the public Internet.

What These Tools Have in Common

Plain Language

Clear interfaces and documentation designed to reduce unnecessary technical friction.

Local Control

Tools that run on equipment you control, without turning ordinary functions into another subscription.

Open Source

Source code that can be inspected, adapted, shared, and improved under straightforward open-source licences.

Privacy and Local Control

The Smart Tech Toolkit requires no account and keeps your answers on your device. Tech Passport stores its records only in the browser profile where you use it and does not sync them to a server; clearing site data can erase those records, so export backups regularly. HomeNetCheck runs diagnostics from your own computer; network tests contact the services being tested, and saved reports remain on your computer unless you choose to share them. Open Lobby Board is designed to operate inside a trusted local network.

Community Resources, Not Supported Products

These resources were developed by Greg Weir and released by Tartanleaf.com Inc.. HomeNetCheck, homenet, Tech Passport, Open Lobby Board, and AI Engine Room are free, open-source community projects released under their respective licences. The Smart Tech Toolkit is a free browser-based companion resource. None are managed services or supported commercial Tartanleaf products, and they come without a promise of individual support, fixes, uptime, security monitoring, or continued development.

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