1
Domain Tools
whois.domaintools.comAlso covers dns lookup, domain ip dns, and whois lookup
DomainTools provides WHOIS lookups, domain availability searches, IP history, traffic data, and other domain research information.
Alternatives
The Best Free online network tools Alternatives in 2026
24 alternatives1 free · 1 open source
Looking for something like Free online network tools? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 1 are open source.
About Free online network toolscentralops.net/co
VisitCentral Ops offers network diagnostic tools including traceroute, nslookup, and WHOIS lookups.
Top picks at a glance
First suggestionDomain ToolsDomainTools provides WHOIS lookups, domain availability…Free or freemium optionCloudflare DNSCloudflare DNS provides public DNS resolution and…Open source optionCloudFlare DDNS UpdaterCloudflare DDNS Updater updates dynamic DNS records so…Another optionWhoxyWhoxy provides a WHOIS API for looking up domain…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Domain Tools | — | Not stated | Web |
| 2 | Whoxy | Paid | Not stated | Web |
| 3 | digger.tools | — | Not stated | Web |
| 4 | Netlas: | — | Not stated | Web, Windows |
| 5 | dnslytics | — | Not stated | Web |
| 6 | whois | — | Not stated | Web |
| 7 | Website Information | — | Not stated | Web |
| 8 | RDAP | — | Not stated | Web |
| 9 | GreyNoise Intelligence | — | Not stated | Web |
| 10 | Whois | Paid | Not stated | Web |
All Free online network tools alternatives
2
Also covers dns lookup, domain ip dns, and whois lookup · same kind of online tool
Whoxy provides a WHOIS API for looking up domain registration records from a database of historical records.
3
digger.tools
digger.toolsAlso covers dns lookup, domain ip dns, and whois lookup · same kind of online tool
Domain Digger looks up DNS, WHOIS, IP data, SSL history, and subdomains for a domain.
4
Netlas:
netlas.ioAlso covers dns lookup and domain ip dns · same kind of online tool
Netlas provides search tools for internet infrastructure, including DNS, WHOIS, and IP lookups.
5
dnslytics
dnslytics.comAlso covers dns lookup and domain ip dns · same kind of online tool
DNSlytics provides reverse IP, NS, MX, WHOIS, and domain lookup tools.
6
whois
whois.b1s4.xyzAlso covers dns lookup and domain ip dns · same kind of online tool
Look up DNS records and RDAP domain information with whois_, which supports common record types and network entities.
7
Website Information
one-plus.github.io/WebsiteInformationAlso covers dns lookup and domain ip dns · same kind of online tool
OSINT Toolkit page listing website, IP, domain, email and MAC lookup tools; some tools need a known identifier to run.
8
RDAP
client.rdap.orgAlso covers dns lookup and domain ip dns · same kind of online tool
Look up domain, IP, autonomous system, and entity records with RDAP.org RDAP-based lookup tool.
9
GreyNoise Intelligence
greynoise.io/vizAlso covers dns lookup and domain ip dns · same kind of online tool
GreyNoise Intelligence analyzes untargeted internet scanning and provides context about IP addresses seen probing networks.
10
Also covers dns lookup and domain ip dns · same kind of online tool
Check domain registration details and availability with Whois.com, which also sells domain names and hosting.
11
Whois Search
webwhois.verisign.com/webwhois-ui/index.jsp?la…Also covers dns lookup and domain ip dns · same kind of online tool
Verisign Whois Search provides information about domain name registrations, including .com and .net records.
12
Also covers dns lookup and domain ip dns · same kind of online tool · free
Cloudflare DNS provides public DNS resolution and authoritative DNS services.
13
IP search - Network Entity Reputation Database
nerd.cesnet.cz/nerd/ipsAlso covers dns lookup and domain ip dns
Network Entity Reputation Database lets users search IP details and reputation information through its interface.
14
Also covers dns lookup and domain ip dns · open source
Cloudflare DDNS Updater updates dynamic DNS records so users can reach a home network through a custom domain.
15
Wappalyzer
wappalyzer.com/lookupAlso covers dns lookup and domain ip dns · same kind of online tool
Wappalyzer identifies technologies used to build websites, showing frameworks, analytics, and hosting components.
16
IWantMyName
iwantmyname.comAlso covers dns lookup and domain ip dns · same kind of online tool
IWantMyName registers domain names across more than 500 extensions and offers related plugins.
17
Domainr
domainr.comAlso covers dns lookup and domain ip dns · same kind of online tool
Domainr searches domain names and provides an API covering top-level domains.
18
SD Finder
subdomainfinder.c99.nlAlso covers dns lookup and domain ip dns · same kind of online tool
Scan a domain for subdomains with Subdomain Finder, which offers private scans that are not logged or indexed.
19
Website search tool
aware-online.com/en/osint-tools/website-search…Also covers dns lookup and domain ip dns · same kind of online tool
Website search tool provides OSINT utilities for investigating a website and its associated infrastructure.
20
Merklemap
merklemap.comAlso covers dns lookup and domain ip dns · same kind of online tool
Find subdomains and certificates linked to a website with Merklemap search and enumeration tools.
21
DomainTyper
domaintyper.comAlso covers dns lookup and domain ip dns · same kind of online tool
DomainTyper searches for available domain names across extensions as users type.
22
Pyfunceble
pyfunceble.github.ioAlso covers dns lookup and domain ip dns · same kind of online tool
PyFunceble checks whether domains, IP addresses, and URLs are available or syntactically valid.
23
Whois
github.com/b1s4/whoisAlso covers dns lookup and domain ip dns
This Whois command-line tool looks up DNS and RDAP records for a domain.
24
Also covers dns lookup and domain ip dns
Google Transparency Report publishes data about requests and activity affecting Google services.
No alternatives match this filter.
Alternatives to similar tools
Google Transparency Report24 alternativesCloudflare DNS24 alternativesNetlas:24 alternativesWebsite Information24 alternativesRDAP24 alternativesIP search - Network Entity Reputation Database24 alternatives
What is the best alternative to Free online network tools?
Based on features, tags and platforms, the closest alternatives to Free online network tools are Domain Tools, Whoxy, and digger.tools.
Is there a free alternative to Free online network tools?
Yes. Cloudflare DNS is free or offer a free plan.
Are there open-source alternatives to Free online network tools?
Yes: CloudFlare DDNS Updater.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative