Synesis is indexed in the Emerging Sources Citation Index (ESCI) of the Web of Science. This index includes high-quality, peer-reviewed journals that are considered to be emerging sources in their respective fields. Being indexed in this database indicates that Lex Humana has been recognized as an important source of legal information and scholarship.

Synesis is also indexed in several databases and repositories of the EBSCO platform.

Other important repositories where Synesis is indexed include Diadorim, CiteFactor, DIALNET, DOAJ (Directory of Open Access Journals), Google Scholar, Latindex, MIAR, OALib (Open Access Library), OasisBR/IBICT, ProQuest, Redib (Red Iberoamericana de Innovación y Conocimiento Científico), SSOAR (Social Science Open Access Repository), Sumários, The Open Access Digital Library, and WorldCat.

Being indexed in these databases and repositories increases the visibility and accessibility of Synesis, facilitating access to its articles by scholars and researchers worldwide and contributing to the advancement of legal knowledge and increasing the impact factor of its authors.