Browse free open source Python OSINT Tools and projects below. Use the toggles on the left to filter open source Python OSINT Tools by OS, license, language, programming language, and project status.

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  • 1
    AttackSurfaceMapper

    AttackSurfaceMapper

    Automated tool for mapping & expanding organization’s attack surface

    AttackSurfaceMapper (ASM) is a reconnaissance and attack surface discovery tool designed to automate the process of mapping potential targets within an organization's infrastructure. It combines open source intelligence (OSINT) with selective active reconnaissance techniques to expand and analyze a target’s external attack surface. Users can supply domains, subdomains, or IP addresses as input, and applies multiple discovery methods to identify additional related assets such as new subdomains, associated IP ranges, and hosts within the same network ownership. It performs both brute-force and passive enumeration techniques to uncover infrastructure components that may not be immediately visible. After building an expanded list of targets, AttackSurfaceMapper collects intelligence such as screenshots of web applications, information about exposed services, and possible vulnerabilities identified through integrated services. It can also search for publicly exposed credentials.
    Downloads: 1 This Week
    Last Update:
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  • 2
    CrossLinked

    CrossLinked

    LinkedIn employee enumeration tool using search engine scraping

    CrossLinked is an open source LinkedIn enumeration tool designed to collect employee names associated with a target organization. Instead of accessing LinkedIn directly or relying on its API, it performs search engine scraping using services such as Google and Bing to discover public LinkedIn profile results. By analyzing these search results, CrossLinked extracts employee names and processes them into usable formats for security assessments or reconnaissance activities. This approach allows the tool to operate without credentials, authentication tokens, or LinkedIn account access. CrossLinked is commonly used by penetration testers and security professionals during the reconnaissance phase to identify potential usernames or email address formats for a target organization. It also supports customizable naming templates, enabling users to generate usernames or email formats that match corporate account conventions.
    Downloads: 1 This Week
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  • 3
    DNSGen

    DNSGen

    Intelligent DNS permutation tool for subdomain discovery

    DNSGen is an open source DNS name permutation tool designed primarily for security researchers and penetration testers who need to discover potential subdomains during reconnaissance and attack surface mapping. It analyzes existing domain names and generates numerous intelligent variations that may represent valid subdomains within an organization’s infrastructure. These generated permutations help identify hidden or unlisted services that may not appear in standard DNS queries or public records. DNSGen applies multiple permutation techniques to create realistic domain combinations based on modern infrastructure naming patterns, including cloud environments, DevOps tools, and microservice architectures. It can also extract meaningful keywords from existing domain names and incorporate them into newly generated permutations. The resulting domain list can be further processed by DNS resolution tools such as MassDNS to determine which generated domains actually exist.
    Downloads: 1 This Week
    Last Update:
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  • 4
    FavFreak

    FavFreak

    Favicon hash–based reconnaissance tool for security research

    FavFreak is an open source reconnaissance tool designed to assist security researchers, bug bounty hunters, and penetration testers in identifying web technologies using favicon hashes. It works by taking one or more URLs as input and automatically retrieving the favicon.ico file associated with each target website. After fetching the favicon, it calculates a hash value and organizes the scanned domains, subdomains, or IP addresses according to these hashes. FavFreak then compares the generated hashes against a predefined fingerprint dictionary that maps known favicon hashes to specific technologies or services. If a match is found, it displays the corresponding technology information in the output, helping researchers quickly identify potential targets or related infrastructure. This approach is particularly useful during reconnaissance phases of security assessments because many web services share identical favicon hashes.
    Downloads: 1 This Week
    Last Update:
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  • 5
    HostHunter

    HostHunter

    OSINT reconnaissance tool for discovering hostnames from IP addresses

    HostHunter is an open source reconnaissance tool designed to discover and extract hostnames associated with a large set of IPv4 or IPv6 addresses. It helps security professionals map IP addresses to virtual hostnames using a combination of OSINT data sources and active reconnaissance techniques. This approach enables users to identify hidden or additional services that may be hosted behind a single IP address. By correlating hostname information from certificates, APIs, HTTP headers, and other sources, the tool helps reveal the broader attack surface of an organization or infrastructure. HostHunter is commonly used in penetration testing, bug bounty reconnaissance, and security assessments where identifying virtual hosts is critical. HostHunter supports multiple output formats, making it easier to integrate the results into other security tools or workflows.
    Downloads: 1 This Week
    Last Update:
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  • 6
    IntelOwl

    IntelOwl

    Centralized platform for automated threat intelligence analysis

    IntelOwl is an open source platform designed to manage and enrich threat intelligence data at scale. It provides a centralized environment where security analysts can gather information about suspicious files and observables such as IP addresses, domains, URLs, or hashes using a single API request. The platform integrates numerous online intelligence sources and advanced malware analysis tools, enabling users to obtain comprehensive threat intelligence without manually querying multiple services. IntelOwl was created to automate repetitive investigation tasks typically performed by security operations center (SOC) analysts, helping teams focus on deeper analysis and incident response. The system features a modular architecture built around plugins that allow new analyzers, connectors, and integrations to be added easily. These plugins can collect data from external intelligence platforms or generate insights using internal analysis tools such as YARA or static malware analyzers.
    Downloads: 1 This Week
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  • 7
    Mantis

    Mantis

    Automated framework for asset discovery and vulnerability scanning

    Mantis is an open source security framework designed to automate the workflow of asset discovery, reconnaissance, and vulnerability scanning for organizations and security teams. Mantis operates through a command line interface and accepts targets such as top level domains, IP addresses, or network ranges as input. From these inputs, it automatically discovers associated digital assets including subdomains and SSL certificates, allowing users to map the attack surface of a system. After discovery, the framework performs reconnaissance on active assets to gather technical information such as open ports, technologies, network details, and hosting infrastructure. Mantis then conducts security scans to identify vulnerabilities, exposed secrets, configuration weaknesses, and potentially malicious phishing domains. It integrates both open source and custom security tools to automate multiple phases of a security assessment in a single workflow.
    Downloads: 1 This Week
    Last Update:
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  • 8
    Phishing Catcher

    Phishing Catcher

    Real-time phishing domain detection via Certificate Transparency logs

    phishing_catcher is a security monitoring tool designed to detect potential phishing domains in near real time by analyzing TLS certificate issuance events. It listens to Certificate Transparency (CT) logs through the CertStream API and evaluates newly issued certificates as they appear. Each certificate often contains one or more domain names, which the tool analyzes to determine whether they resemble suspicious or phishing-related domains. phishing_catcher applies a configurable scoring mechanism that assigns numeric values to certain keywords, patterns, or top-level domains found within certificate domain names. When a domain’s score exceeds predefined thresholds, it is flagged as potentially malicious and reported accordingly. It operates continuously, processing certificate updates as they arrive and displaying or logging domains that appear suspicious. This approach allows analysts, researchers, and security teams to identify phishing infrastructure early.
    Downloads: 1 This Week
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  • 9
    ReconSpider

    ReconSpider

    Most Advanced Open Source Intelligence (OSINT) Framework

    ReconSpider is most Advanced Open Source Intelligence (OSINT) Framework for scanning IP Addresses, Emails, Websites, and Organizations and find out information from different sources. ReconSpider can be used by Infosec Researchers, Penetration Testers, Bug Hunters, and Cyber Crime Investigators to find deep information about their target. ReconSpider aggregate all the raw data, visualize it on a dashboard, and facilitate alerting and monitoring on the data. Recon Spider also combines the capabilities of Wave, Photon and Recon Dog to do a comprehensive enumeration of attack surfaces. Reconnaissance is a mission to obtain information by various detection methods, about the activities and resources of an enemy or potential enemy, or geographic characteristics of a particular area. A Web crawler, sometimes called a spider or spiderbot and often shortened to crawler, is an Internet bot that systematically browses the World Wide Web, typically for the purpose of Web indexing (web spidering).
    Downloads: 1 This Week
    Last Update:
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  • 10
    dnstwist

    dnstwist

    Detects phishing and lookalike domains using DNS fuzzing techniques

    dnstwist is an open source cybersecurity tool designed to identify malicious or suspicious domain names that imitate legitimate websites. It works by generating a large set of domain name permutations based on a target domain and analyzing whether any of those variants are actively registered or used. These permutations simulate common techniques used in phishing attacks, typosquatting, and brand impersonation campaigns. Security teams can use the tool to discover potential threats where attackers attempt to deceive users with lookalike domains. dnstwist also helps detect phishing activity by comparing web page content and visual similarity between domains using fuzzy hashing and perceptual hashing techniques. By automating DNS fuzzing and analysis, it provides organizations with an additional source of targeted threat intelligence. The tool can output results in structured formats, making it easier to integrate with security workflows or further analyze suspicious domains.
    Downloads: 1 This Week
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  • 11
    reNgine

    reNgine

    Automated framework for web application reconnaissance and scanning

    reNgine is an automated reconnaissance framework designed to simplify and enhance the process of gathering information about web applications during security assessments. It provides a streamlined workflow for penetration testers, bug bounty hunters, and security teams who need to perform reconnaissance efficiently and at scale. The platform integrates multiple open-source reconnaissance tools into a unified environment with a configurable scanning engine and an intuitive web interface. reNgine focuses on improving traditional reconnaissance workflows by organizing collected data in a database and correlating results to make them easier to analyze. This approach helps security professionals avoid manually searching through scattered files and instead work with structured, searchable reconnaissance data. The framework supports continuous monitoring of targets and can automatically notify users about newly discovered assets or vulnerabilities.
    Downloads: 1 This Week
    Last Update:
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  • 12
    Fav-up

    Fav-up

    Look up IP addresses using favicon hashes via Shodan

    fav-up is an open source reconnaissance utility designed to identify servers and websites by analyzing favicon hashes and querying the Shodan search engine. It calculates the hash of a favicon image and then uses that value to search Shodan for other hosts that use the same icon. This technique is commonly used in security research and OSINT investigations to discover related infrastructure or services that may belong to the same organization. fav-up can retrieve favicon data from several sources, including local files, direct favicon URLs, or full web pages where the favicon is automatically extracted. fav-up then computes the favicon hash and performs Shodan queries to locate IP addresses that match the same hash. To support larger investigations, the tool can iterate over lists of URLs, domains, or favicon files in bulk. Results can be printed to the console or exported into structured formats such as CSV or JSON for further analysis and reporting.
    Downloads: 0 This Week
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  • 13
    IVRE

    IVRE

    Open source framework for large scale network reconnaissance and analy

    IVRE is an open source network reconnaissance framework designed to collect, process, and analyze intelligence gathered from network scans and traffic data. It provides tools for both active and passive reconnaissance, enabling users to understand how networks behave and identify exposed services or infrastructure. The framework integrates with well known security and scanning tools such as Nmap, Masscan, ZGrab2, ZDNS, and Zeek to gather large amounts of network intelligence. IVRE stores the collected data in a database and offers multiple ways to explore and analyze it, including a web interface, command line tools, and a Python API. This allows security professionals to query scan results, inspect network flows, and identify patterns across large datasets. The project can be used to build self hosted alternatives to internet scanning services such as Shodan or Censys, giving organizations full control over their own reconnaissance infrastructure.
    Downloads: 0 This Week
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  • 14
    OneForAll

    OneForAll

    OneForAll is a powerful subdomain collection tool

    OneForAll is a comprehensive subdomain enumeration and reconnaissance tool primarily used in penetration testing and bug bounty workflows. Built in Python, it aggregates results from numerous DNS, certificate transparency, search engine, and threat intelligence sources to uncover hidden subdomains. The tool is particularly notable for incorporating many Chinese data sources that are often missed by Western-focused recon tools, increasing discovery coverage. It supports brute-force subdomain discovery, recursive scanning, and takeover detection to help identify potential attack surfaces. OneForAll also performs validation and enrichment of discovered domains, producing structured outputs for further analysis. Overall, it is a powerful asset discovery platform designed to maximize subdomain visibility during security assessments.
    Downloads: 0 This Week
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  • 15
    Somedo

    Somedo

    Social Media Downloader

    Social Media Downloader for Open Source Intelligence purpos. Supportes so far: Facebook Instagram Twitter
    Downloads: 0 This Week
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  • 16
    TIDoS

    TIDoS

    Python web penetration testing framework with modular security tools

    TIDoS-Framework is an open source web application penetration testing framework designed to assist security researchers and ethical hackers in identifying vulnerabilities in web systems. It provides a comprehensive environment for performing multiple phases of security assessment, including reconnaissance, scanning, enumeration, vulnerability analysis, and exploitation. Its modular architecture contains more than one hundred modules organized into several testing phases, allowing users to automate or manually run different security checks against a target application. The framework includes both graphical and command-line interfaces, enabling flexible interaction depending on the user’s workflow and preferred interface. A console interface inspired by tools like Metasploit allows testers to execute modules, manage targets, and perform operations efficiently. TIDoS is implemented in Python and supports multiprocessing to speed up scanning and testing operations.
    Downloads: 0 This Week
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  • 17
    cloud_enum

    cloud_enum

    Multi-cloud OSINT tool for discovering public cloud resources

    cloud_enum is an open source reconnaissance and OSINT tool designed to discover publicly accessible cloud resources across major cloud providers. It focuses on enumerating assets in Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform using keyword-based discovery techniques. It works by taking user-provided keywords and generating variations through mutation wordlists, then testing these combinations against common cloud service naming patterns. cloud_enum performs both HTTP probing and DNS lookups to identify resources such as storage buckets, cloud applications, and databases that may be exposed or accessible. cloud_enum uses concurrent processing to speed up scanning, enabling efficient enumeration of large numbers of possible resource names. It can identify both publicly accessible and protected resources, helping security researchers understand the external cloud footprint of an organization.
    Downloads: 0 This Week
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  • 18
    gasmask

    gasmask

    All-in-one OSINT tool for reconnaissance and domain intelligence

    GasMasK is an open source OSINT (Open Source Intelligence) tool designed to perform reconnaissance and information gathering on domains and online targets. It is implemented as a Python-based command-line utility that collects data from numerous publicly available sources across the internet. It aggregates intelligence such as domain details, email addresses, hostnames, and subdomains by querying search engines, DNS records, certificate transparency logs, and security databases. GasMasK integrates with a wide range of platforms and services including search engines, social media platforms, and security APIs to retrieve relevant information about a target. These sources include services like Shodan, Censys, Netcraft, VirusTotal, GitHub, and various DNS-related services, allowing investigators to build a comprehensive profile of a domain or organization. GasMasK is commonly used by penetration testers, red teams, and security researchers who need to collect reconnaissance data.
    Downloads: 0 This Week
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  • 19
    secator

    secator

    Automated framework for running pentesting tools and workflows

    Secator is a task and workflow runner designed to streamline security assessments by integrating many well-known penetration testing and reconnaissance tools into a unified framework. It acts as a centralized automation platform that helps security professionals run tasks, workflows, and scans more efficiently from a single command-line interface. It supports dozens of established security tools and organizes them into structured workflows, enabling users to perform complex reconnaissance and vulnerability discovery processes with minimal manual effort. By standardizing input parameters and output formats across different tools, Secator simplifies how results are collected and processed during security testing. Secator is built to improve productivity for penetration testers, bug bounty hunters, and security researchers who frequently chain multiple tools together during assessments.
    Downloads: 0 This Week
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