Open Source Shodan Alternatives

The best open source alternative to Shodan is Censys. If that doesn't suit you, our users have ranked more than 25 alternatives to Shodan and nine of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Shodan are LeakIX, Arachni, wapiti and skipfish.

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.

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Shodan

Freemium • Proprietary

Online
Google Chrome
Firefox

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

Learn more about Shodan

Censys
Do you think this is a good alternative?
Yes
No
Freemium • Open Source
Vulnerability Scanner
Online
24 alternatives to Censys
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...
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Censys Features
Security monitoring
Network Scanner
Censys vs Shodan opinions
Most users think Censys is a great alternative to Shodan.
Guest
Fresher data, more ports scanned
Positive comment•
0

Guest
no limit on number of searches, lots of filters
Positive comment•
0
LeakIX
Do you think this is a good alternative?
Yes
No
Free • Open Source
Vulnerability Scanner
Online
Software as a Service (SaaS)
6 alternatives to LeakIX
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.
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LeakIX Features
REST API
Data leak prevention
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LeakIX vs Shodan opinions
pros, cons and recent comments
khen_su
Simple, too the point indexer with nice querying capacities
Positive comment•
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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•
0
Arachni
Do you think this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
16 alternatives to Arachni
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!
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wapiti
Do you think this is a good alternative?
Yes
No
Free • Open Source
Windows
Linux
14 alternatives to wapiti
Wapiti allows you to audit the security of your web applications. Wapiti is a command line tool.
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wapiti Features
1. Command line interfacewapiti either have CLI support or is a CLI-only app.
Security focused
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skipfish
Do you think this is a good alternative?
Yes
No
Free • Open Source
Vulnerability Scanner
Mac
Windows
Linux
BSD
29 alternatives to skipfish
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.
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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
Grabber Web Application Scanner
Do you think this is a good alternative?
Yes
No
Free • Open Source
Vulnerability Scanner
Penetration Testing Tool
Mac
Windows
Linux
Android
7 alternatives to Grabber Web Application Scanner
Grabber is a web application scanner. Basically it detects some kind of vulnerabilities in your website.

Grabber Web Application Scanner has no features, suggest some!
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Natlas
Do you think this is a good alternative?
Yes
No
Free • Open Source
Linux
Self-Hosted
Software as a Service (SaaS)
9 alternatives to Natlas
Natlas is an open source project designed to provide scalable network scanning and an interface to search through the results. For more information, visit github.com/natlas/natlas
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Natlas Features
Network Scanner
Vega
Do you think this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
7 alternatives to Vega
Vega is a free and open source scanner and testing platform to test the security of web applications. Vega can help you find and validate SQL Injection, Cross-Site Scripting (XSS), inadvertently disclosed sensitive information, and other vulnerabilities.
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Vega Features
SQL Injection Protection
IVRE
Do you think this is a good alternative?
Yes
No
Free • Open Source
Network Monitor
Mac
Windows
Linux
Online
BSD
Self-Hosted
12 alternatives to IVRE
Network recon framework, including a web interface to browse Nmap scan results.
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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
IVRE vs Shodan opinions
Most users think IVRE is a great alternative to Shodan.
nm17
Great for indexing local networks and such
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

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