Free Shodan Alternatives

The best free alternative to Shodan is Criminal IP. If that doesn't suit you, our users have ranked more than 25 alternatives to Shodan and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Shodan are Censys, ZoomEye, IVRE and Arachni.

Shodan alternatives are mainly Vulnerability Scanners but may also be Penetration Testing Tools or Network Monitors. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Shodan.

Filter suggestions

Free + Penetration Testing

Shodan

Freemium • Proprietary

Shodan is a search engine that lets you find specific computers (routers, servers, etc.) using a variety of filters. Some...

More about Shodan

Shodan alternatives page was last updated

Criminal IP
Is this is a good alternative?
Yes
No
Freemium • Proprietary
Vulnerability Scanner
Online
13 Criminal IP alternatives
Criminal IP protects IT assets and businesses by analyzing all years of cyber threats and prediciting exploits. Criminal IP provides real-time intelligence to enhance cybersecurity competencies in all aspects.
- - Criminal IP is the most popular Web-based alternative to Shodan.
- - Criminal IP is the most popular free alternative to Shodan.
Suggest and vote on features
Criminal IP Features
API Integration
Security focused
Search IP addresses
Comments about Criminal IP as a Alternative to Shodan
Almost everyone thinks Criminal IP is a great Shodan alternative.
all • positive • negative relevance • date
183xh1n
If you are looking for a free search engine, Criminal IP should be your choice. I mean, it's currently in beta stage and free so why not?
Top positive comment •
4

Guest
decent service with little limitations. i like that they let you see all prescanned info about websites without limits
Top positive comment •
0

dikocem681
Criminal IP has the benefit of being in Beta. They're completely free to use.
Positive comment •
0

yenexok620
the free service is appealing
Positive comment •
0

fofene4398
Certainly a good alternative to Shodan, I like how easy it is for us laymans.
Positive comment •
0

Show more comments ▾
5 of 18 comments
Censys
Is this is a good alternative?
Yes
No
Freemium • Open Source
Vulnerability Scanner
Online
24 Censys alternatives
Censys is a search engine that enables researchers to ask questions about the hosts and networks that compose the Internet. Censys collects data on hosts and websites through daily ZMap and ZGrab scans of the IPv4 address space, in turn maintaining a database of how hosts and...
- - Censys is the most popular Open Source alternative to Shodan.
Suggest and vote on features
Censys Features
Security monitoring
Network Scanner
Comments about Censys as a Alternative to Shodan
Most users think Censys is a great Shodan alternative.
Guest
Fresher data, more ports scanned
Positive comment •
0

Guest
no limit on number of searches, lots of filters
Positive comment •
0
ZoomEye
Is this is a good alternative?
Yes
No
Freemium • Proprietary
Online
26 ZoomEye alternatives
Network mapping service.
Suggest and vote on features
ZoomEye Features
Manual Pen-Testing
Network Mapping
Comments about ZoomEye as a Alternative to Shodan
Most users think ZoomEye is a great Shodan alternative.
hednkm
never imagined i could one day find myself a hacked website... cheers to the team!
Positive comment •
0

Guest
the best shodan alternative
Positive comment •
0
IVRE
Is this is a good alternative?
Yes
No
Free • Open Source
Network Monitor
Mac
Windows
Linux
Online
BSD
Self-Hosted
12 IVRE alternatives
Network recon framework, including a web interface to browse Nmap scan results.
- - IVRE is the most popular Windows, Mac, Linux & Self-Hosted alternative to Shodan.
Suggest and vote on features
IVRE Features
1. Command line interfaceIVRE either have CLI support or is a CLI-only app.
2. No registration requiredYou can use most of the features in IVRE without registration.
3. Works OfflineIVRE can be used without the need to connect to the internet.
Search IP addresses
Security focused
Network Scanner
Comments about IVRE as a Alternative to Shodan
Some users think IVRE is a great Shodan alternative, some don't.
nm17
Great for indexing local networks and such
Positive comment •
0

Guest
Because it's completely free and open-source and works exactly like Shodan.
Positive comment •
0

Guest
Because it's an open-source framework for scanning, indexing and researching data about connected device... Like Shodan.
Positive comment •
0
Arachni
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
16 Arachni alternatives
Arachni is an Open Source, feature-full, modular, high-performance Ruby framework aimed towards helping penetration testers and administrators evaluate the security of web applications.
Arachni has no features, suggest some!
Add a screenshot

Opinions about Arachni as a Alternative to Shodan
This alternative is disputed. Arachni is still a legitimate Shodan alternative, but it might have issues that some users think are important.
wapiti
Is this is a good alternative?
Yes
No
Free • Open Source
Windows
Linux
14 wapiti alternatives
Wapiti allows you to audit the security of your web applications. Wapiti is a command line tool.
Suggest and vote on features
wapiti Features
1. Command line interfacewapiti either have CLI support or is a CLI-only app.
Security focused
Add a screenshot

Opinions about wapiti as a Alternative to Shodan
This alternative is disputed. wapiti is still a legitimate Shodan alternative, but it might have issues that some users think are important.
skipfish
Is this is a good alternative?
Yes
No
Free • Open Source
Vulnerability Scanner
Mac
Windows
Linux
BSD
29 skipfish alternatives
A fully automated, active web application security reconnaissance tool. Key features: High speed: pure C code, highly optimized HTTP handling, minimal CPU footprint - easily achieving 2000 requests per second with responsive targets.
Suggest and vote on features
skipfish Features
1. Command line interfaceskipfish either have CLI support or is a CLI-only app.
Heuristic Detection
Discontinued
Skipfish is no longer maintained. Last version, 2.10 beta, released in December 2012, can be still downloaded from Google Code Archive