Life & fun · alternatives · 2026

zzzz.io is a free DynDNS replacement service that lets users maintain consistent domain names for devices with changing IP addresses. Created as a weekend project, it automatically updates DNS records when a user's IP… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. zzzz.io, a free DynDNS replacement I created on the weekend launched in 2014; newer entries below may have overtaken it.

1. 1
   nextdns.io – A Combination of Cloudflare DNS and Pi-Hole▲372

   NextDNS protects you from all kinds of security threats, blocks ads and trackers on websites and in apps and provides a safe and supervised Internet for kids — on all devices and on all networks.

   2019 · nextdns.io · its alternatives →

2. 2
   Domainz.io▲282

   Premium domains, for not so premium prices

   2018 · taixiuonline68.net · its alternatives →

3. 3AS
   A simple-to-update dynamic DNS service▲30

   2014 · dhcp.io · its alternatives →

4. 4
   Golang DNS server, including DNSSEC and DNS-over-TLS▲283

   Recursive and authoritative DNS server in go, including DNSSEC and DNS-over-TLS - tenta-browser/tenta-dns

   2017 · github.com · its alternatives →

5. 5
   IP Guide – Info on IP addresses, Networks, and ASNs▲363

   Hey all, wanted to share my recent weekend hack project. I wanted to improve upon the existing space for looking up information about IP addresses and ASNs. The backend is written in Rust and pulls BGP data every 8 hours from the RIPE RIS project to build up a routing table and also adds geolocation information. The frontend is using React and Tailwind. Would love any feedback or suggestions on what to improve.

   2023 · ip.guide · its alternatives →

6. 6
   Backname.io – every IP address gets its own domain▲46

   I was setting up tests involving DNS resolution recently, where something like 127.0.0.1.service.foo would have been tremendously useful. Back in the day, I'd have used xip.io - but sadly that service died. Well, every excuse is a good one when it comes to writing a DNS server! Backname.io joins nip.io and sslip.io in the wildcard DNS game.

   2023 · backname.io · its alternatives →

7. 7
   I built a guided Build your own DNS Server challenge▲57

   Hey everyone. It's Sherub here, author of the Build your own DNS Server challenge on CodeCrafters. Currently it’s available in Rust, Go, and Python and is free while in beta. https://codecrafters.io/dns-server I've kept the challenge accessible but still challenging for an intermediate developer. This challenge, like others from CodeCrafters, is self-paced. You can use any tools you prefer (terminal, editor, etc.) to build the project. At the end of the challenge, you will have created a DNS forwarding server. The server can create and read DNS packets and respond to DNS…

   2023 · app.codecrafters.io · its alternatives →

8. 8
   tunnelto.dev▲186

   Expose localhost to the internet with a public URL

   2020 · tunnelto.dev · its alternatives →

9. 9NS
   Nomina – Single Binary DNS and Nameserver with WebUI for Homelabs▲6

   Hey everyone, I was always tired of setting up PowerDNS, Bind and PiHole and I am trying to do more projects in Rust, so here is Nomina. It has: * Split Horizon DNS (return a different IP/record if remote IP is in a certain network etc) * DynDNS Support * Blocklist Integration * DHCP4+6 Server * AXFR/IXFR support * Rewriting of records It can replace most of the common Home Lab setups incl. PiHole AdBlocking etc. https://github.com/DatanoiseTV/Nomina

   Jun 2026 · its alternatives →

10. 10
    "q", a DNS query tool with support for UDP, TCP, DoT, DoH, DoQ and ODoH▲140

    A tiny command line DNS client with support for UDP, TCP, DoT, DoH, DoQ and ODoH. - natesales/q

    2022 · github.com · its alternatives →

11. 11
    Simple Dynamic DNS Using the Cloudflare API▲19

    Simple, free dynamic DNS via Cloudflare. Contribute to lyoshenka/cloudflare-ddns development by creating an account on GitHub.

    2015 · github.com · its alternatives →

12. 12
    RoachDNS▲7

    Dynamic DNS featuring Georouting and Failover

    2024 · its alternatives →

13. 13
    I built a DNS resolver from scratch in Rust – no DNS libraries▲115

    I built a DNS resolver that lets me use https://frontend.numa instead of localhost:5173 — auto-generated TLS certs, WebSocket passthrough, path routing. No mkcert, no nginx, no /etc/hosts.

    Apr 2026 · github.com · its alternatives →

14. 14
    Sinkzone DNS – Forwarder that blocks everything except your allowlist▲96

    Most site blockers work by blacklisting distractions. That never worked for me, the internet is too big, and there’s always something new to waste time on. I wanted the opposite: allowlist‑only browsing. Block everything by default, and explicitly allow only what I need. So I built Sinkzone: a local DNS forwarder with two modes: Monitor mode: lets all traffic through, but logs every domain so you can decide what to allow. Focus mode: only allowlisted domains resolve; everything else is blocked (NXDOMAIN). It’s open source, written in Go, and runs locally on macOS, Linux, and Windows. Works a…

    2025 · github.com · its alternatives →

15. 15TI
    The Internet Portal – Warp to a Random Website, Using ICANN CZDS Data▲96

    2020 · theinternetportal.net · its alternatives →

16. 16
    Our project, free DNS service EntryDNS.net▲13

    entryDNS - a DNS service and dynamic DNS.

    2011 · entrydns.net · its alternatives →

17. 17ED
    Essential Dynamic DNS▲17

    2014 · slimdns.com · its alternatives →

18. 18
    Zinc: AWS Route53 Policy Records on the Cheap▲17

    Route 53 zone manager. Contribute to presslabs/zinc development by creating an account on GitHub.

    2017 · github.com · its alternatives →

19. 19DD
    Dnsyo – DNS propagation checker▲56

    2013 · samarudge.github.io · its alternatives →

20. 20
    Mezz, a curl-able WiFi sandbox for IoT pentesting▲40

    A self-contained wifi sandbox for inspecting your own IoT devices - ABGEO/mezz

    May 2026 · github.com · its alternatives →

21. 21OT
    OctoDNS, Tools for managing DNS across multiple providers▲31

    After the major outages from AWS and Cloudflare, I began wondering how to make my own services more resilient. Using nameservers from different providers is doable but a bit tricky to manage. OctoDNS helps automate keeping the zones synced so AWS, Cloudflare, etc. are all serving the same information. In an age of centralized infrastructure, we can exploit the capabilities from the origins of the decentralized internet.

    Nov 2025 · octodns.readthedocs.io · its alternatives →

22. 22
    zeit.world▲7

    Free global DNS

    2016 · vercel.com · its alternatives →

23. 23
    ZaneOps▲17

    As a self-hoster myself, I've been missing some of the nicer features for other PaaS and wanted to have them for my own side projects, so i set out to build a custom platform as a service that is self-hosted. Today after a whole year of working on it and using it for all my projects, I put out an initial stable version for the project for everyone to try. website link : https://zaneops.dev repo link : https://github.com/zane-ops/zane-ops (PS: yes, the website for zaneops is hosted on zaneops) Would love to hear your thoughts

    2025 · zaneops.dev · its alternatives →

24. 24PD
    Privacy DNS – free, encrypted, no-logs, DoH, DoT, DoQ, DNSProxy▲14

    2024 · privacy-dns.pw · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →