To facilitate the review, evaluation and analysis of scientific literature, the lit-tag R Shiny application provides a convenient interface for users to generate a citation database with custom, user-defined tags and notes. Lit-tag is not subject-specific and is useful for any field of research. Starting with a table of citations exported from a Zotero library and a user-generated Excel file describing a set of tags and notes fields, lit-tag provides tools for assigning tags and notes to papers ("lit-tag-builder" module) and for exporting, graphing, and generating reports from the resulting database ("lit-tag-viewer" module). The app fills a need not met by the limited tagging tools available in bibliographic software and does not require database programming skills.

翻译：为促进科学文献的评审、评估与分析，lit-tag R Shiny应用程序提供了一个便捷界面，使用户能够生成带有自定义标签和注释字段的引文数据库。Lit-tag不限定学科领域，适用于任何研究领域。该软件以从Zotero文献库导出的引文表格以及用户生成的描述标签与注释字段集的Excel文件为起点，提供为论文分配标签和注释的工具（"lit-tag-builder"模块），以及从生成的数据库中导出、绘制图表和生成报告的功能（"lit-tag-viewer"模块）。该应用程序填补了书目管理软件中有限的标注工具所未能满足的需求，且无需用户具备数据库编程技能。