Browse free open source DNS software and projects below. Use the toggles on the left to filter open source DNS software by OS, license, language, programming language, and project status.

  • Build Secure Enterprise Apps Fast with Retool Icon
    Build Secure Enterprise Apps Fast with Retool

    Stop wasting engineering hours. Build secure, production-grade apps that connect directly to your company’s SQL and APIs.

    Create internal software that meets enterprise security standards. Retool connects to your business data—databases, APIs, and vector stores while ensuring compliance with granular permissions and audit logs. Whether on our cloud or self-hosted, build the dashboards and admin panels your organization needs without compromising on security or control.
    Learn More
  • Outgrown Windows Task Scheduler? Icon
    Outgrown Windows Task Scheduler?

    Free diagnostic identifies where your workflow is breaking down—with instant analysis of your scheduling environment.

    Windows Task Scheduler wasn't built for complex, cross-platform automation. Get a free diagnostic that shows exactly where things are failing and provides remediation recommendations. Interactive HTML report delivered in minutes.
    Download Free Tool
  • 1
    CartoReso intends to facilitate enterprise computer network mapping.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 2
    FatNS Analyzes and Tests Name Servers. It is a PCAP-based security tool intended to sniff and detect common attacks on the DNS system, and is designed to be easily expandable with additional attack detectors.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3
    Dave's Naughty Stuff Blocker. This is an open source solution to allow administrators to filter and redirect selected "inappropriate" sites based on a list of specific sites and/or strings.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    DNScat is a "swiss-army knife" tool to tunnel traffic through DNS servers. It is a small, yet powerfull tool, similar to netcat. In conjunction with PPP server, it allows to build a VPN using DNS packets. DNScat is a useful tool for penetration testing.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

    Ideal for internal IT departments or managed service providers (MSPs)

    Atera’s AI agents don’t just assist, they act. From detection to resolution, they handle incidents and requests instantly, taking your IT management from automated to autonomous.
    Learn More
  • 5
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    A rewrite from scratch of BIND 9 for OpenBSD and FreeBSD.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next