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SPECIFICTION
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NxFilter

nxfilter.org

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Spec score 8.3 #9 of 60 in DNS Filtering Services

What it is

NxFilter is a lightweight DNS filter for controlling DNS queries across a network. It supports URL keyword filtering, custom blocklists, safe search controls, filtering schedules, and policies for individual users or groups. Screen time limits and data caps add controls, while reports provide daily, weekly, and user-level views; logs can be retained for up to 400 days. NxFilter caches responses from an upstream DNS server and serves cached results locally. Authentication options include Active Directory integration. Remote Windows and Android devices can use filtering agents, while iOS devices can be filtered through DNS over HTTPS. For roaming iOS or Android devices, NxFilter can provide DNS over HTTPS when an SSL certificate is installed and users authenticate with NxFilter. Clustering supports one master and up to four slave nodes for load balancing and fail-safe operation. The maker offers Windows executable, Debian package, and ZIP downloads, and points users to third-party RPM packages and Docker images. NxFilter itself is freeware for commercial or non-commercial use. Paid list options include Jahaslist Monthly at $7 a month for 50 users, Jahaslist Annual at $60 a year for 50 users, and Cloudlist Annual at $150 a year for 50 users.

Spec sheet

Product
NxFilter is a lightweight DNS filter that filters DNS queries on a network.Read 5 Oct 2026 · nxfilter.org
Privacy
The maker's EULA says the software may send Jahastech a usage report that does not contain end user personal information.Read 5 Oct 2026 · tutorial.nxfilter.org
Support
The maker lists a support forum and the email address [email protected] for contact.Read 5 Oct 2026 · nxfilter.org
License
The maker's license says NxFilter is freeware for commercial or non-commercial use and prohibits selling the software in its original form.Read 5 Oct 2026 · tutorial.nxfilter.org
Headquarters
Seoul, Republic of KoreaRead 28 Sep 2026 · nxfilter.org
Authentication
It supports user authentication methods including Active Directory integration.Read 5 Oct 2026 · nxfilter.org
Clustering
NxFilter supports clustering for load balancing and fail-safe with one master and up to four slave nodes.Read 5 Oct 2026 · tutorial.nxfilter.org
Deployments
The maker provides Windows executable, Debian package, and ZIP downloads, and points to third party RPM packages and Docker images.Read 5 Oct 2026 · nxfilter.org
DNS cache
NxFilter caches DNS responses from its upstream DNS server and serves cached responses locally.Read 5 Oct 2026 · nxfilter.org
DNS over HTTPS
NxFilter can provide DNS over HTTPS for roaming iOS or Android devices, subject to requirements including an installed SSL certificate and NxFilter user authentication.Read 5 Oct 2026 · tutorial.nxfilter.org
Filtering
It offers URL keyword filtering, user and group policies, screen time control, data caps, and user level reports.Read 5 Oct 2026 · nxfilter.org
License limit
NxFilter counts unique usernames and client IP addresses daily; exceeding the licensed user limit creates a visual blocked warning in logs, with no actual blocking.Read 5 Oct 2026 · nxfilter.org
Maker location
The site identifies Jahastech and lists its address in Seocho-gu, Seoul, Republic of Korea.Read 5 Oct 2026 · nxfilter.org
Remote devices
Its filtering agents support remote Windows and Android devices, and iOS devices can be filtered using DNS over HTTPS.Read 5 Oct 2026 · nxfilter.org
Reporting
NxFilter can retain log data for up to 400 days and generate daily, weekly, and user level reports.Read 5 Oct 2026 · tutorial.nxfilter.org

Plans and prices

NxFilter Free Freeware; commercial and non-commercial use Free for all purposes Read 5 Oct 2026 · nxfilter.org
Jahaslist Monthly $7 a month $7 / 50 user 50 users · local database · dynamic classification · clustering license free Read 5 Oct 2026 · nxfilter.org
Jahaslist Annual $60 a year $60 / 50 user 50 users · local database · dynamic classification · clustering license free · multi-year discount Read 5 Oct 2026 · nxfilter.org
Cloudlist Annual $150 a year $150 / 50 user 50 users · cloud database · dynamic classification · clustering license free Read 5 Oct 2026 · nxfilter.org

Every NxFilter plan and price →

Strong points and limits

Strong points

  • Freeware license permits commercial and non-commercial use
  • Supports user and group filtering policies
  • Logs can be retained for up to 400 days
  • Clustering supports one master and four slaves

Limits

  • Roaming DNS-over-HTTPS requires an SSL certificate
  • Roaming users must authenticate with NxFilter
  • Exceeding the licensed user limit creates a warning in logs

Who it suits

NxFilter suits administrators managing DNS access for network users and remote devices, especially those who need user-level policies, reporting, or clustering. Its DNS-over-HTTPS setup has specific certificate and authentication requirements.

Verdict

NxFilter combines network DNS filtering with reports, caching, remote-device options, and clustering. Check the setup requirements for roaming devices and the applicable 50-user list plan before deployment.

Where Specifiction places it

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