GeoLite databases and web services from MaxMind provide free geolocation and limited network data for IP addresses. The data is less accurate than MaxMind's paid GeoIP products. A free GeoLite account is required to download databases or query the web services, which use the same integration methods and documentation as GeoIP with minor modifications.
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The Global Terrorism Database is an open-source database of terrorist events worldwide from 1970 through 2020, with more than 200,000 cases. Each incident entry covers the date and location, weapons used, target nature, casualties and, when identifiable, the responsible group or individual. Data is drawn from open media sources and added only after source credibility is determined.
Internet-based database of comic book information.
Grim Dawn Tools is a collection of tools for the action role-playing game Grim Dawn. The site lists a build calculator, world map, checklist, item database, monster database, and pet database, plus sections for modifications including Reign of Terror, Diablo 3 Classes, and GD League Season 7. It states it is not affiliated with Crate Entertainment.
QRZ callsign database for searching amateur radio operators, call signs, and station details.
The HMS LINCS Database is a Harvard Medical School project providing access to publicly available LINCS datasets. It includes information on experimental reagents such as small molecules, cells, antibodies and proteins, along with experimental and data analysis protocols. Datasets can be browsed or searched, and detailed protocol and results information is available for each entry.
An arXiv paper on discovering skylines over hidden web databases whose search interfaces enforce a top-k output constraint. It examines how search interface controls affect discovery cost and develops algorithms for one-ended range, free range and point predicates, combined for mixed interfaces. Experiments over real-world online and offline databases are reported.
An arXiv paper on digging deeper into hidden web databases limited by the top-k output constraint. It presents the GetNext meta-algorithm, which retrieves the next ranked tuple through a restrictive interface without prior knowledge of the ranking function, and algorithms that generate and execute multiple reformulated queries. Theoretical analysis and experiments over synthetic and real-world databases are reported.
The Human Mortality Database is a scientific data resource on mortality in developed countries. It provides harmonized mortality and population estimates to researchers, students, journalists, and policy analysts. The database follows open data principles and is organized into zipped data files for rapid downloads, with summary indicators and data by country.
IANA database listing top-level domains, registry operators, and root zone delegation data.
The Institut d'Astronomie et d'Astrophysique at Université Libre de Bruxelles maintains databases for nuclear and spectroscopic data relevant to astrophysics. Listed resources include BRUSLIB, a collection of nuclear data, NetGen, a tool for generating nuclear-reaction rates on user-defined networks, and an updated compilation of reaction rates. Spectroscopic databases and molecular linelists are also listed.
The Internet Game Cars Database is a reference site listing vehicles seen in video games, both playable and unplayable, with image captures and additional information. Visitors can search by video game, make or model. The site also provides pictures taken directly from games and allows members to contribute comments and images.
Research movies and television through Internet Movie Cars Database's searchable title, cast, production, and viewing information.
The Network Entity Reputation Database IP search is a CESNET page that searches and lists IP addresses with hostname, ASN, country, events, reputation score, threat category, other properties, time added and last activity. It provides links to services including Shodan, Censys, AbuseIPDB, Talos Intelligence Center, Greynoise Visualizer and DShield. Results shown include DShield reports and OTX pulses.
Genamics JournalSeek is a categorized database of scholarly journal information. It records journal descriptions, abbreviations, homepage links, subject categories and ISSNs, and the site states the database contains 39226 titles. Searching this information helps identify journals to publish in. The site notes that JournalSeek does not contain articles or abstracts.
KeePass is a free open source password manager that stores passwords in an encrypted database unlocked with a single master key. Database files can use AES-256, ChaCha20 and Twofish encryption. It supports password groups, search, auto-type and a plugin architecture, and the database is a single file that can be transferred between computers.
The KIT Whole-Body Human Motion Database is a large-scale database of captured whole-body human motion. Motion is normalized with the master motor map reference model, and recordings are manually annotated with tree-structured tags for searching. The data include object positions and subject–object relations.
The LaunchBox Games Database provides game images and metadata for gaming platforms, best viewed in LaunchBox. It lists platforms, developers, publishers and genres, with platform pages that include release dates, media and game entries.
LGA World Database is a miscellaneous web resource for discovery, directories, archives, web culture, or useful tools.
McGill archive database for searching Montreal Council of Social Agencies historical records.
The NASA/IPAC Extragalactic Database is a database of extragalactic sources drawn from the astronomical literature. Its September 2026 release highlights note ingestion of 221K sources, including 157K cross-matches with NED objects and 63K new objects, and describe suggested data publication practices for journal articles.
The National Institute of Polar Research Science Database is a metadata portal organizing polar science data into categories including space and upper atmospheric sciences, meteorology and glaciology, geoscience, and bioscience. It also covers governmental institutions, project monitoring, IPY, Arctic, and Umitakamaru. The database provides search, DOI attribution, and a data policy, and is licensed under Creative Commons Attribution 3.0 Unported.
The ICIJ Offshore Leaks Database contains information on more than 810,000 offshore entities from the Pandora Papers, Paradise Papers, Bahamas Leaks, Panama Papers and Offshore Leaks investigations. Records cover more than 80 years up to 2020. A Reconciliation API matches user data against database entities.
PalDat is an online publication and database on recent pollen, described as the world's largest database for palynological data. It presents pictures, species and genera records and lists latest publications. The site notes the release of version PalDat 3.4 and PONET datasets with light microscopy micrographs of hydrated pollen.