Top 10 Best Open Source Intelligence Tools (OSINT Tools) for Penetration Testing – 2020

We all know very well that getting or gathering any information by using various tools become really easy. In this article, we have discussed various OSINT tools, as if we search over the internet, then there will be many different pages to pop out.

But the most problematic thing is to gather different information from multiple pages for an appropriate target within the project.

Hence, we have accumulated each and every detail about these tools and put all together in this post, and as a result, we will show you the 10 best OSINT tools.

Generally, OSINT tools are used by pen tester to find possible weaknesses and information in a company’s protection system that is working.

However, tools play a significant role, but without knowing the usage of tools, it would be worthless for the users to use it.

Hence, before moving towards the tools, let’s gain some knowledge about the OSINT and why do we need OSINT tools.

What is OSINT (Open Source Intelligence)?

As we have discussed above that OSINT stands for open-source intelligence, and it refers to a collection of data or information from public sources like companies, organizations, or about people.

Generally, OSINT techniques have been produced from openly available information for the public that is collected, utilized, and distributed in a suitable time to a suitable audience for directing a particular intelligence demand.

The internet is a wide range of a source of data which has enormous advantages and disadvantages as well as.

Hence if we talk about benefits, then we can say that the internet is free to access, and everyone can enjoy or use it until and unless it has been restricted by the organization or by the law.

On the other hand, if we talk about the disadvantages, then let me clarify that anyone with a wicked intention can easily misuse the information which is available on the internet.

The internet information can vary from time to time, like audio, video, text, website information, article or news, etc.

Why do We Need OSINT tools?

After knowing what is OSINT tools, now the question arises that why do we need OSINT tools? Suppose there is a situation where you have to find proper information related to a specific topic on the internet.

And for this, you have to do it in two ways, first, you have to analyze and gather all the information about the topic; its kind of laboring and time taking too.

Now, on the other hand, you can simply use the open-source intelligence tools, as the tools are directly connected to the different websites and check the topic if it’s present or not just in few seconds.

Hence, now we hope that for you it is clear that it saves a lot of time, and the users get proper information without remembering the information.

And not only that even we can also use various tools to collect all specific information about the topic that we are seeking.

Top 10 Best OSINT Tools

  • Google Dorks
  • TheHarvester
  • Shodan
  • Maltego
  • Metagoofil
  • Recon-Ng
  • Check Usernames
  • TinEye
  • SpiderFoot
  • Creepy

1. Google Dorks

OSINT tools
Google Hacking Techniques

We all know that Google is a well-known and the world’s most used search engine, but don’t be shocked! As the tech giant, Google is not an open-source tool, but we all use google to find the information that we want.

As the search engine simply provide us essential information, as well as they, also record important information.

And Google Dorks implements a flexible and easy way of searching for information by applying some operators, and conceivably it is also known as Google Hacking as well.

The result of this search engine comprises social media posts, ads, websites, images, etc. the operators of the search engine could easily make the information much better and more accessible for securing data.

As we know that Google uses operators to find information, and here are some operators that we have mentioned below:-

  • Intitle – Generally this operator is used to search the title.
  • Ext – This operator is used for a specific extension in the file.
  • Inurl – It simply helps us to find specific string mentioned in the URL.
  • Filetype – As its name itself states that with this operator you can simply know that it is used to find the file.
  • Intext – It helps us to find a particular text on a specific page.

2. TheHarvester

OSINT tools

TheHarvester is an outstanding tool if you want to find emails, user names, hostnames, or the domain associated information from different public search engines and PGP key servers.

This tool is a sub-part of the Kali Linux operating system and quite attractive for harvesting intelligence applied in the initial steps of a penetration test.

This tool is basically created to help the penetration tester on a more advanced stage, and it’s really efficient, manageable, and easy to use. Moreover, there are different sources are available which it supports are the Google for Emails and subdomains, PGP server for hostname/subdomains and users, and many more.


open-source intelligence tools

Shodan is an effective and powerful search engine generally used by hackers to see through all exposed assets.

It gives you the proper results that make more sense and associated with security professionals.

It mainly contains data linked to assets that are being connected to the network, and this tool can be accessed from computes, laptop, traffic signals, webcams, and different IoT devices.

Basically, this tool simply helps the security analyst in recognizing the target and test it for several vulnerabilities, services, passwords, ports, and many more. Moreover, it also provides flexibility in community searches as well.

4. Maltego


It is a part of kali Linux and a product of Paterva. This open-source intelligence tool is mainly used to perform an essential investigation toward various targets with the help of some in-built transforms.

If you want to use Maltego than you should be registered on the Paterva site, after proper registration, you can create your own desired machine, or you can simply run the machine to get the target.

The program that we use in Maltego is generally written in Java and it comes built-in pre-packaged with the Kali Linux.

There are several steps built-in inside Maltego through which you can easily collect information from different sources, based on the result, and not only that even it will also generate graphical results of the target as well.

5. Metagoofil


We can say that Metagoofil is an information-gathering tool generally used for extracting metadata of public documents of the targeted company or organization.

This tool offers a lot of features like searching for the record, extraction of metadata, reporting of the result, and local downloads.

After the result, it produces a report with usernames, software versions, and servers or specific machine names that will serve Penetration testers in the information-gathering stage.

6. Recon-Ng


Recon-Ng is generally used to perform surveillance on the target and one of the best OSINT Tools in the list, furthermore its also built into Kali Linux.

Recon-ng has several modules inbuilt, which is it’s one of the most powerful features, and not only that even its method relates to Metasploit.

Those users who have used Metasploit before can know the exact power of modular tools. To use a modular tool, you have to add the domain in the workspace and these workspaces are mainly generated to carry out the operation inside it.

There are some great modules, like bing-domain-web and google-site-web, which are used to find additional domains associated with the first initial target domain.

The result of these domains will be stay as recorded domains to the search engines.

7.Check Usernames

Checkusernames Tool

As we discussed above that how time taking and laboring to find a username presence without using an open-source intelligence tool. Thus if you want to get any information about usernames without wasting time, then Check Usernames is one of the best tools for it.

It simply searches for a specific username at a time from more than 150 websites, and not only that even it also has a fantastic feature with which you can quickly check the presence of the target on a particular website so you can immediately attack or counter your target.


TinEye is the first reverse image search engine, and all you have to do is to submit a proper picture to TinEye to get all the required information like where it has come and how it has been used.

Reverse Image Tool

It uses different methods to function its tasks like image matching, signature matching, watermark identification, and various other databases to match the image instead of using keyword matching.

TinEye applies neural networks, machine learning, pattern recognition, and image identification technology rather than keywords or metadata.

In short, if you are searching for any tool like this for reverse image search then undoubtedly it is one of the best tools that you can find on the internet.


Threat Monitoring Tool

It is another open-source tool in OSINT Tools GitHub list that is available for both the well-known platforms, Linux and windows. It has been written in Python language, and it runs on any virtual platform. As it has automatically qualified to use questions over 100+ OSINT specialists to grasp the intelligence on emails, IP addresses, names, domain names, etc.

It basically combines with easy and interactive GUI with a powerful command-line interface. It receives and collects a wide range of information about the target, such as a web server, netblocks, e-mails, and many other things.

While Using Spiderfoot, you may able to target as per your need and requirement, as it simply collects the data by learning how they are linked to each other.

Moreover, it gives clear penetrations about possible hacking warnings like data leaks, vulnerabilities, and additional relevant information on the same.

Hence this insight will help to leverage the penetration test and improve the threat intelligence to notify before it gets attacked or looted.


geolocation Tool

It is an open-source Geolocation intelligence tool, which gathers information about Geolocation by using several social networking platforms and different image hosting services that are previously distributed somewhere else.

Generally, Creepy is classified into two primary tabs that are, ‘Targets’ and ‘map view’ tab. Basically, it shows the descriptions on the map, applying a search filter based on the exact location and date.

And not only that, even all these reports are accessible in CSV or KML format as well. Moreover, it is written in python language and also comes with a packaged binary for Linux distributions like Ubuntu, Debian, Backtrack, and also for the Microsoft windows as well.


In this article, we tried to cover all the information on OSINT tools, including OSINT techniques, what its need, and we have also discussed the top 10 best OSINT tools of 2019 as well.

Though the list can go on, the fact is that it depends on the selection of the right tool and proper techniques. Hence the above tools are free to use so that users can easily use it and can check which is more suitable for them.

So, what do you think about this? Simply share all your views and thoughts in the comment section below. And if you liked this post, then do not forget to share this post with your friends and on your social profiles too.

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