I've been running Technitium DNS Server for a while now. It's honestly one of the best self-hosted DNS solutions out there - powerful as hell, actively maintained, and packed with features. But the default web UI? It gets the job done, but let's just say it wasn't winning any beauty contests.

So I built my own.

Isotope is a clean, fast web interface for Technitium DNS Server. It's built with React 19, Tailwind CSS v4, and shadcn/ui - basically all the modern stuff that makes building UIs not suck.

Why "Isotope"?

Technetium is element 43 on the periodic table. Fun fact: in nature, it has no stable isotopes. Now it does.

Features

Isotope covers pretty much everything you'd want to do with your Technitium server:

• Dashboard - Real-time stats with query charts, top clients, top domains, the works
• Zone Management - Full DNS record editing with support for all record types
• Cache Browser - Browse and manage cached records with domain-level controls
• Block & Allow Lists - Manage your DNS filtering with a curated blocklist picker
• DHCP - Scope and lease management if you're using Technitium for DHCP
• DNS Client - Test queries without leaving the UI
• Logs - Query and server log viewers with advanced filtering
• Admin Panel - Users, groups, sessions, permissions - all that good stuff
• Cluster Support - For when one DNS server isn't enough
• Dark Mode - Because we're not savages
• Responsive - Works on your phone too, which is honestly more useful than I expected

Getting Started

The easiest way to run Isotope is with Docker:

1docker run -d \
2  -p 8080:80 \
3  -e TECHNITIUM_API_URL=http://your-technitium-server:5380 \
4  --name isotope \
5  ghcr.io/drudge/isotope:latest

Then hit up http://localhost:8080 and you're good to go.

Check out the README for Docker Compose examples and other deployment options.

Related Links

• GitHub Repository
• Docker Image
• Technitium DNS Server