Shodan AlternativesOnly Free apps categorised as Vulnerability Scanners

The best free Vulnerability Scanner alternative to Shodan is Criminal IP. If that doesn't suit you, our users have ranked more than 25 alternatives to Shodan and seven of them are free Vulnerability Scanners so hopefully you can find a suitable replacement. Other interesting free Vulnerability Scanner alternatives to Shodan are Censys, skipfish, LeakIX and Vulners API.

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Shodan alternatives are mainly Vulnerability Scanners but may also be Penetration Testing Tools or Network Monitors. Other popular filters includes Free + Penetration Testing and Free + Vulnerability Scanner. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Shodan.

Shodan

IP Address Lookup Tool
Freemium • Proprietary

Shodan is a search engine that lets you find specific computers (routers, servers, etc.) using a variety of filters. Some have also described it as a public port scan directory or a search engine of banners.

More about Shodan

Shodan alternatives page was last updated Jan 11, 2023

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Criminal IP
58 likes
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.
13 Criminal IP alternatives
License model
Freemium • Proprietary
Application types
Vulnerability Scanner
IP Address Lookup Tool
Platforms
Online
Properties
Security-focused
Features
API Integration
+2
Criminal IP VS Shodan
Is Criminal IP a good alternative to Shodan?
Comments about Criminal IP as an Alternative to Shodan

Comment summary: Criminal IP is considered a strong alternative to Shodan by users who appreciate its free beta access. Many users highlight the ease of use and the ability to find results that other search engines, like Google, cannot. Although Shodan offers more extensive data in some aspects, Criminal IP is valued for its comprehensive search results and the accessible nature of its services, attracting those who prioritize free access in their choice of IoT search engines.
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 •Jul 19, 2022
4
dikocem681
Criminal IP has the benefit of being in Beta. They're completely free to use.
Positive comment •Dec 30, 2022
0
yenexok620
the free service is appealing
Positive comment •Nov 23, 2022
0
Show more comments
3 of 18 comments
- Almost everyone thinks Criminal IP is a great Shodan alternative.
- Criminal IP is the most popular Web-based alternative to Shodan.
- Criminal IP is the most popular free alternative to Shodan.
- Criminal IP is Freemium and ProprietaryShodan is also Freemium and Proprietary
- Criminal IP is Security-focusedShodan is not according to our users

Censys
21 likes
Censys is a search engine that allows computer scientists to ask questions about the devices and networks that compose the internet.
24 Censys alternatives
License model
Freemium • Open Source
Application types
Vulnerability Scanner
Network Monitor
Platforms
Online
Censys Features
Security Monitoring
Network Scanner
Censys VS Shodan
Is Censys a good alternative to Shodan?
Comments about Censys as an Alternative to Shodan

Guest
Fresher data, more ports scanned
Positive comment •Dec 7, 2020
0
Guest
no limit on number of searches, lots of filters
Positive comment •May 5, 2020
0
- Most users think Censys is a great Shodan alternative.
- Censys is the most popular Open Source alternative to Shodan.
- Censys is Freemium and Open SourceShodan is Freemium and Proprietary

skipfish
13 likes
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.
27 skipfish alternatives
License model
Free • Open Source
Application type
Vulnerability Scanner
Platforms
Mac
Windows
Linux
BSD
skipfish Features
Command line interface
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
skipfish VS Shodan
Is skipfish a good alternative to Shodan?

LeakIX
4 likes
LeakIX is a search engine indexing open hosts on the internet. It focuses on listing the databases and table names and keeps a history of every successful connection.
6 LeakIX alternatives
License model
Free • Open Source
Application type
Vulnerability Scanner
Platforms
Online
Software as a Service (SaaS)
LeakIX Features
REST API
Data leak prevention
LeakIX VS Shodan
Is LeakIX a good alternative to Shodan?
Comments about LeakIX as an Alternative to Shodan

Guest
Has less data but is free for all. Also table names (mysql), collection names (mongo), index names ( elasticsearch ) and topic ( kafka ) names are searchable.
Positive comment •May 28, 2020
0
khen_su
Simple, too the point indexer with nice querying capacities
Positive comment •May 28, 2020
0
- Most users think LeakIX is a great Shodan alternative.
- LeakIX is the most popular SaaS alternative to Shodan.
- LeakIX is Free and Open SourceShodan is Freemium and Proprietary

Vulners API
1 like
Vulners is a high-quality correlated database of software vulnerabilities. Users can create a custom VM solution using our consolidated database through API, multiple vulnerability scanners, plugins, and many other security tools and integrations.
15 Vulners API alternatives
License model
Freemium • Proprietary
Application type
Vulnerability Scanner
Platforms
Linux
Online
Software as a Service (SaaS)
Vulners API Features
Vulnerability Assessment
Vulnerability management
Vulners API VS Shodan
Is Vulners API a good alternative to Shodan?

Netlas.io
27 likes
Enriched and structured information about every host on the Internet. Non-intrusive internet scanner, whois, domain names & SSL certs database.
6 Netlas.io alternatives
License model
Freemium • Proprietary
Application types
IP Address Lookup Tool
Vulnerability Scanner
Platforms
Mac
Windows
Linux
Online
Android
BSD
Software as a Service (SaaS)
Netlas.io Features
Network Scanner
Security Testing
Penetration Testing
OSINT
WHOIS API
Whois Data
Command line interface
Network Tools
Supports SSL Certificates
Netlas.io VS Shodan
Is Netlas.io a good alternative to Shodan?
- Netlas.io is the most popular Android alternative to Shodan.
- Netlas.io is Freemium and ProprietaryShodan is also Freemium and Proprietary

Grabber Web Application Scanner
Like this app
Grabber is a web application scanner. Basically it detects some kind of vulnerabilities in your website.
7 Grabber Web Application Scanner alternatives
License model
Free • Open Source
Application types
Vulnerability Scanner
Penetration Testing Tool
Platforms
Mac
Windows
Linux
Android
Grabber Web Application Scanner VS Shodan
Is this a good alternative to Shodan?