An effective open-source intelligence (OSINT) tool for gathering important data from a variety of sources is theHarvester.

theHarvester is a powerful open-source intelligence (OSINT) tool designed for extracting valuable information from diverse sources.


  • theHarvester aggregates data from various sources, including search engines, PGP key servers, LinkedIn, Shodan, and more. This versatility ensures comprehensive information gathering during OSINT operations.
  • Users can fine-tune their searches by specifying the target domain, data sources, and the type of information they seek. This flexibility allows for precise and targeted data retrieval.
  • theHarvester specializes in e-mail harvesting, collecting email addresses related to the target domain. This feature is particularly valuable for expanding the scope of an investigation and identifying potential targets.
  • For enhanced functionality, theHarvester supports the use of API keys with certain data sources, enabling users to maximize their access to specific platforms and gather more comprehensive information.
  • theHarvester provides results in various formats, including HTML, XML, and CSV, facilitating easy analysis and integration with other tools in the OSINT workflow.


Use the following command to install theHarvester via the official Kali Linux repositories:



To run the tool use:


Start a basic search by specifying the target domain. For example:



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