If you manage servers or troubleshoot networks, you know how messy it gets keeping all your tools organized. You open ten tabs for DNS lookups, pings, port checks, and IP calculations, then repeat the process the next time something breaks.
What is Networking Toolbox?
Networking Toolbox is a free open source web app from the developer behind Dashy and other well known self hosted projects. It brings together more than a hundred networking tools in one clean interface. You can host it yourself, use it offline, and handle everything from DNS lookups to IP calculations without switching between sites.
I first came across Networking Toolbox while browsing r/selfhosted on Reddit. It immediately caught my attention because it brings so many useful tools together in one place.
Offline-first collection of 100+ networking tools and utils
by u/lissy93 in selfhosted
Because it works offline and doesn’t depend on third party services when self hosted, it’s especially useful in air gapped environments or places where you can’t rely on external web tools.
Key Features
Here are some of the key features of Networking Toolbox:
- Supports self-hosting via Docker, static build or integration in a broader stack.
- Works offline – full diagnostics without needing external APIs or internet dependency.
- Includes hundreds of individual tools covering IP/subnet math, DNS/TLS/HTTP diagnostics, conversion utilities and more.
- Custom branding, theming and multi-language support if you deploy it yourself. GitHub
Deployment & Usage
Getting started is simple:
- Use Docker:
docker run -p 8080:80 lissy93/networking-toolbox(or choose a version tag) - Build from source: Clone the repo, install dependencies, and run build commands (supports Node, static, Docker, etc)
Final Notes and Thoughts
I found Networking Toolbox to be one of those tools that immediately feels useful. If you spend time working on subnets, DNS issues or HTTP/TLS diagnostics, having everything in one offline-capable package means less context switching and fewer browser tabs.
It’s still evolving but already stable and polished. If you like having tools you control, especially in self-hosted or isolated environments, be sure to check out the Networking Toolbox Github repo and give it a star!
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