| Title | Description | Language |
|---|
| Corpus Thomisticum | This project collects all the works of Thomas Aquinas, one of the most important philosophers of the Middle Ages, as well as a comprehensive bibliography and other relevant research tools. | English, Latin |
| De Gruyter Open Philosophy | A philosophy journal from De Gruyter with open access. The journal features a variety of articles in different fields of philosophy. | Multiple languages |
| Glossarium Græco-Arabicumt | A lexicon and reference dictionary of medieval Arabic translations of classical Greek texts, with an emphasis on philosophy. | English, Arabic, Ancient Greek |
| History of Philosophy - Without Any Gaps | A database of academic podcasts on the history of philosophy from King's College. It includes a categorization into subcategories. | English |
| Internet Encyclopedia of Philosophy | A free online encyclopedia with peer-reviewed articles that contain long entries and comprehensive bibliographies on a wide range of key topics, philosophers, and philosophical movements. You can search by topic, alphabetically, or by the popularity of a specific entry. | English |
| IsisCB Explores | A bibliographic search tool based on the Isis Bibliography of the History of Science. The database allows you to search for citations related to the history of science, bibliographic information about authors in the field, and other tools. It is an efficient resource for finding sources on the history of science. | English |
| Islamic Philosophy Online | A database containing hundreds of full texts on Islamic philosophy, from the early days of Islam to modern texts. The website also offers PDF files available for free download. | Arabic, English |
| Medieval Philosophy Digital Resources | A database that includes numerous primary sources in the field of medieval philosophy (full texts, manuscripts, etc.), along with secondary sources such as articles and bibliographic records. | Multiple languages |
| PhilPapers | A bibliographic database and index for philosophical works of various types. The database includes journals, books, and archives with open access. Searches can be made by different categories, including various genres within the field of philosophy. The database is managed by an editorial team, and the materials published undergo a rigorous review process. | English |
| PhilSci-Archive | An online archive that includes early versions (preprints) of current papers in the philosophy of science. The archive provides access to such papers, several open-access journals, and an advanced search covering a wide range of topics. | Multiple languages |
| Rational Sciences in Islam | A database from McGill University that includes Islamic texts from the years 1100–1900, including manuscripts and secondary sources. | Arabic, English |
| Stanford's Encyclopedia of Philosophy | An online encyclopedia of philosophy from Stanford University, featuring around 1,800 entries on various philosophical topics, each written by an expert in the field. The encyclopedia is updated quarterly. | English |
| The Blackwell Guide To Ancient Philosophy | A comprehensive review of the central figures and most important movements in Greek philosophy, from the Classical period to Late Antiquity. | English |
| The Great Thinkers | A database that focuses on texts related to important philosophers, with an emphasis on modern philosophy. The database also includes links to full texts. | Multiple languages |
| The Latin Library | A collection of key Latin texts, with an emphasis on philosophy and history. In addition to the texts themselves, the database also includes secondary materials, such as Latin lexicons and articles about the period from which the texts were drawn. | English, Latin |
| The Rome Project | A collection of resources and sources about Greece and Rome, with an emphasis on philosophical and religious texts. In addition to primary sources, the site also features modern articles on the subject. | English, Ancient Greek, Latin |
