Best Free OSINT Tools of 2026

Gain a deeper understanding of your audience and take action by identifying visitors through their IP addresses, enhancing forms, targeting users on mobile devices, preventing online fraud, analyzing server logs, or executing geo IP-based redirections. Ipregistry stands out as a reliable and comprehensive source for IP geolocation and threat detection, proving advantageous for various sectors including publishers, ad networks, retailers, financial institutions, and e-commerce businesses. With our products, you can generate valuable insights that allow for the non-intrusive personalization of content tailored to users, customers, or leads based on factors like currency, location, time zone, and company or carrier information. Furthermore, these insights can be utilized to run targeted advertising campaigns and manage the distribution of digital media effectively while simultaneously thwarting online fraud by identifying suspicious activities such as requests from hosting nodes, users operating through Tor, public proxies, or those flagged as abusers across more than 220 OSINT threat feeds. This comprehensive approach not only enhances user experience but also fortifies your defenses against potential threats in the digital landscape.

XposedOrNot offers a web-based platform for monitoring and checking data breaches, catering to individuals, domain administrators, and security professionals. By entering an email address, users can discover associated public breaches, including the dates of those breaches and the types of data that were compromised, and they can also browse a searchable database of breach records. Users have the option to receive alerts when their email is found in newly recorded breaches. Additionally, organizations can confirm their control over a domain and track cumulative exposure, monitor for new breaches, and set up email notifications. The service includes detailed exposure analytics, a complimentary REST API with public keyless endpoints and rate limits, as well as official SDKs and integrations with various security and investigative tools like Microsoft Sentinel, Splunk, Wazuh, Maltego, MISP, TheHive/Cortex, and an MCP server. Both the website and the APIs are open source, while separate plans are available for commercial API usage at higher volumes. This comprehensive service aims to enhance data security and awareness for its users.

Maltego can be used by many users, including security professionals, forensic investigators and investigative journalists as well as researchers. You can easily gather information from disparate data sources. All information can be automatically linked and combined into one graph. Automately combine disparate data sources using point-and-click logic. Our intuitive graphical user interface allows you to enrich your data. You can detect patterns even in the largest graphs using entity weights. You can annotate your graph and then export it for further use. Maltego defaults to using our public Transform server. We have learned over the years that flexibility is important in choosing the right infrastructure for enterprise users.

Netlas.io, a network scanner on the Internet, is a search engine. Netlas scans DNS records for billions of domains names, hundreds and millions of HTTP responses, and SSL certificates. This information can be obtained using several tools. This tool allows you to search through the results of internet scans. Netlas scanners are non-intrusive and continuously scan internet-accessible hosts. They save their responses. DNS Search: This stores domain names and their IP addresses as well as other types of DNS records. IP WHOIS: Information on the owner and management a IP address including the IP address range and network provider name. Domain WHOIS: Information on the domain owner, including contact information, details of the registrar, registration dates and expiration dates. Certificates: A database containing SSL certificates from various sources. Netlas is a must-have tool for any cybersecurity professional.

Discover the leading OSINT tool designed for reverse lookups of emails and phone numbers. Utilize our platform to conduct reverse lookups for both emails and phone numbers, revealing associated social media profiles. Understanding the sensitivity of your inquiries, we ensure that none of your searches or outcomes are stored. Our methods strictly adhere to OSINT practices that maintain the anonymity of the target and do not trigger any alerts. You will receive instantaneous results from social networks, streamlining your investigative process and maximizing efficiency. With this tool, you can delve deeper into your research without the worry of compromising your privacy.

OSINT Industries stands out as a formidable open-source intelligence platform that significantly enhances the speed and precision of online investigations. Users can conduct reverse searches on various data points, including emails, phone numbers, usernames, names, and crypto wallets, effectively constructing detailed digital profiles by revealing connections to accounts, social media presence, geolocation details, and chronological activity records. Harnessing information from more than 1,000 global sources, the platform offers a comprehensive strategy for data analysis and extraction. Its cutting-edge geospatial capabilities empower investigators to map out the digital movements of subjects internationally, while dynamic timelines present a coherent sequence of online interactions. Prioritizing user privacy, OSINT Industries employs advanced encryption methods and refrains from retaining any search data. Furthermore, its innovative algorithms ensure the elimination of false positives, providing reliable intelligence consistently, making it an indispensable tool for both professionals and enthusiasts in the field of digital investigations. In an age where accurate information is crucial, OSINT Industries sets a new standard for intelligence gathering.

DNSdumpster.com serves as a complimentary tool for domain research, allowing users to identify hosts associated with a particular domain. For security assessments, uncovering visible hosts from an attacker's viewpoint is crucial. The swift identification of the attack surface is vital for those engaged in penetration testing or pursuing bug bounties. Moreover, network defenders gain numerous advantages through passive reconnaissance, as it aids in shaping their information security strategies. By grasping network-based OSINT, IT professionals can enhance their ability to operate, evaluate, and manage networks effectively. Integrating our attack surface discovery into your vulnerability assessment can significantly reduce both time and potential frustrations. Unlike traditional methods, we refrain from employing brute force subdomain enumeration, opting instead for open source intelligence resources to extract related domain information. This data is subsequently organized into a practical resource that proves valuable for both attackers and defenders of systems exposed to the internet. In summary, this tool not only streamlines the process but also empowers users to make informed security decisions.

Surfface functions as an OSINT (Open Source Intelligence) orchestrator and a people search engine tailored for businesses seeking to uncover the true identities of individuals they encounter online. Users can upload a facial photograph along with optional details such as a name or handle, allowing Surfface to analyze a variety of lawful, publicly accessible sources including social media profiles, posts, and videos. This comprehensive scanning process enables users to piece together the identity of a person behind an account, message, or transaction. Various teams, such as those focused on security, fraud prevention, and trust and safety, utilize Surfface to assess risks associated with social engineering, identify fraudulent accounts, and mitigate potential insider threats. Additionally, human resources and compliance departments leverage this tool to implement an extra layer of open-source verification for high-risk roles, vendors, or partners. Sales professionals and customer service representatives also benefit by gaining a deeper understanding of the actual individuals linked to significant accounts. Distinct from standard reverse image search tools, Surfface excels at identifying faces within social media content, associating them with specific profiles, and providing relevant context that aids in evaluating intent and risk—all while maintaining compliance and focusing primarily on the US market. This innovative approach ensures that businesses can navigate the complexities of online interactions with greater confidence and insight.

CYBORA serves as a comprehensive Cyber Risk Resilience platform that continuously links every identified risk to the active systems and controls that govern it, ensuring that exposure is assessed on an ongoing basis rather than being evaluated just once a year. Each risk is assigned an owner, treatment strategies, appetite thresholds, and is visualized on a 5x5 matrix, with control mapping aligned to standards such as ISO 27001, NIST CSF, SOC 2, PCI DSS, HIPAA, GDPR, CIS v8, DORA, and NIS2. Additionally, the platform evaluates third-party risks using 34 deterministic rules, including those related to DORA Article 28 concentration exposure. Assets and AI models are systematically registered and categorized to comply with the EU AI Act's risk requirements. The detection process feeds directly into the risk register, utilizing OSINT and darknet surveillance, tracking of Indicators of Compromise (IOCs), and managing security operations center (SOC) cases with MITRE ATT&CK framework integration, while also offering SIEM exports to platforms like Splunk, Elastic, and Sentinel. To ensure robust risk management, the system incorporates business impact analyses, continuity planning, and a dynamic crisis workspace, effectively closing the feedback loop. The service is provided from locations in Lithuania, the UK, and the US, allowing for a private tenant setup with the security of dual 256-bit encryption keys, options for self-hosting, and support for over 20 languages. This versatility makes CYBORA an essential tool for organizations aiming to enhance their cybersecurity posture.

Insomnia is an advanced AI-driven penetration testing and offensive security platform developed by CQR Cybersecurity. By targeting a specific system, its AI red team performs a comprehensive range of tasks including reconnaissance, vulnerability assessments, OSINT, CVE verification, exploitation, and privilege escalation, applicable to web applications, APIs, networks, cloud environments, and Active Directory, ultimately generating a professional report in PDF, DOCX, or HTML format that includes CVSS scores and recommended fixes. This all-in-one tool is equipped with over 275 security modules, encompassing SAST and DAST, live key validation for secret detection, dependency and CVE scanning, testing for APIs and GraphQL, wireless auditing, Active Directory assessments using BloodHound, an HTTP interception proxy, and capabilities to build CI/CD pipelines. Additionally, it includes Insomnia OS, a Debian-based operating system tailored for offensive security tasks. For users, there is a free Community Edition available alongside a complimentary SAST engine that supports pip, npm, Docker, Homebrew, and plugins for VS Code and JetBrains. The paid Advanced and Pro subscriptions enhance the experience with complete AI automation, access to a comprehensive database of over 30,000 CVEs, exploitation tools, OSINT capabilities, and mobile analysis functionalities, making it a robust choice for cybersecurity professionals.