The best free alternative to No-IP is Duck DNS, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to No-IP and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to No-IP are FreeDNS, Dynu Dynamic DNS, deSEC and NameCoin.
Too many redirects and then ads.
Yo don't need to confirm your hostnames every month as you have to with no-ip
Almost everyone thinks Duck DNS is a great No-IP alternative.
Duck DNS is the most popular Web-based, Windows, Mac & Linux alternative to No-IP.
Duck DNS is the most popular Open Source & free alternative to No-IP.
Free DNS, Dynamic DNS, Static DNS services; 5 free shared hostnames, use anywhere; Unlimited number of domains per account (yes really);
Dynu offers free dynamic DNS service for yourname.dynu.com and yourname.com. It has a simple API(update URL) and offers free update client software.
No monthly check-in. Provides multiple DNS records even for free third level domains. SRV record is especially useful for me.
Provides all the features that No-IP offers but for less hassle and a cheaper price.
Very convenient and stable service. Have used it for many years now. I like the fact that I don't have to check in or do anything to keep the free service going.
Almost everyone thinks Dynu Dynamic DNS is a great No-IP alternative.
Namecoin is a distributed domain name system based on the Bitcoin technology. Namecoin extends Bitcoin to add transactions for registering, updating and transferring domain names. Namecoin provides an alternative to the existing domain name system (DNS), in which names can be...
Offers managed DNS with global Anycast and Unicast servers, instant worldwide updates, DDoS protection, DNS Failover, DNSSEC, mail forwards, web redirects, load balancing, free SSL, migration assistance, geolocation targeting, and 24/7 live chat support.
Free and simple IPv4 & IPv6 dynamic DNS for personal use. Register your own subdomains (for free) or use your own custom domains (you must own the domain name). Free subdomain registration.
Fast DynDNS, NoIP alternative. Free service, long-term hostnames (yearly update is enough), ipv6 compatible.
DNS-O-Matic (dnsomatic.com) provides you a free and easy way to announce your dynamic IP changes to multiple services with a single update.
This is a service that rides on top of "no-ip"; doesn't replace ni-ip (in fact, it will announce to "no-ip". Irony)
Dynamic DNS and Free DNS Hosting • Make your home network accessible from everywhere. • Host DNS records for your domains at YDNS.
Authoritative, dynamic and geo-DNS, traffic balancing, CDN offload, domain services and DNS firewall. With full DNSSEC support.
This Free DNS hosting service is provided to help people that don't want to lose time and money with providers not always reactive to DNS changes.
XName is the most popular Self-Hosted alternative to No-IP.
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Bailed on No-Ip.com as it's too big a pain -- major Captcha puzzle x2 each month. (Used to do no-ip paid, but price is now $25 instead of $14.) DuckDNS seems to do the job fine and it's no-nag free (for now).