SmartDNS vs Technitium DNS Server
A side-by-side comparison of two self-hosted reverse proxy & gateways options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | SmartDNS | Technitium DNS Server |
|---|---|---|
| Deploy effort | Read-the-docs project | ≈5-minute setup |
| Health score | 93 · Excellent | 93 · Excellent |
| Category | Reverse Proxy & Gateways | Reverse Proxy & Gateways |
| License | GPL-3.0 | GPL-3.0 |
| Language | C | C# |
| Setup difficulty | Medium | Easy |
| Min. RAM | 64 MB | 256 MB |
| Deployment | binary, source | docker, binary |
| GitHub stars | ★ 11,314 | ★ 9,982 |
| First released | 2018 | 2017 |
| Replaces | Pi-hole, dnsmasq | Pi-hole, AdGuard Home |
What are SmartDNS and Technitium DNS Server?
SmartDNS
SmartDNS is an open-source local DNS server that queries multiple upstream servers and returns the fastest responding result. It supports ad-blocking and encrypted DNS for self-hosted networks.
- Fastest-result resolution
- Ad-blocking support
- DoH and DoT upstreams
- Runs on routers
Technitium DNS Server
Technitium DNS Server is an open-source authoritative and recursive DNS server with a full web console. It supports ad-blocking, DNS over HTTPS and TLS, and is designed for self-hosted privacy.
- Authoritative and recursive modes
- Web management console
- Encrypted DNS protocols
- Built-in ad-blocking
SmartDNS vs Technitium DNS Server: key differences
SmartDNS is written in C, while Technitium DNS Server is built with C#. SmartDNS is the lighter option, starting around 64 MB of RAM against 256 MB for Technitium DNS Server. Technitium DNS Server lists first-class Docker deployment; SmartDNS does not.
Why pick each one
Choose SmartDNS if…
- Released under the GPL-3.0 license
- Mature project with 11.3k GitHub stars
- Written in C
- Tiny footprint — runs in 64 MB RAM
Choose Technitium DNS Server if…
- Released under the GPL-3.0 license
- Easy to set up — beginner-friendly
- First-class Docker support for quick deployment
- Mature project with 10k GitHub stars
Frequently asked questions
Is SmartDNS or Technitium DNS Server better?
Neither is universally better. SmartDNS has the larger community, while Technitium DNS Server is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are SmartDNS and Technitium DNS Server free and open-source?
Yes. SmartDNS is licensed under GPL-3.0 and Technitium DNS Server under GPL-3.0. Both can be self-hosted at no software cost.
Can I run SmartDNS and Technitium DNS Server with Docker?
SmartDNS: check the project docs for container support. Technitium DNS Server: yes.
Which is lighter on resources, SmartDNS or Technitium DNS Server?
SmartDNS has the smaller minimum footprint at 64 MB of RAM, compared to about 256 MB for Technitium DNS Server. Real-world usage depends on library size, user count, and enabled features.