🧹 BibTeX 去重（合并重复参考文献）BibTeX Duplicate Remover

使用说明与常见问题How-to & FAQ

「BibTeX 去重（合并重复参考文献）」是什么？What is the BibTeX Duplicate Remover?

合并多个 .bib 文件后一键找出重复参考文献：按 DOI、标题+年份（忽略大小写、标点和 LaTeX 命令）或相同引用键识别，选择保留第一条或字段最完整的一条，并列出被删除的条目和对应保留项，同时给出 \cite 键替换表。Find duplicate references after merging .bib files: match by DOI, by title + year (ignoring case, punctuation and LaTeX) or by identical keys; keep the first or the most complete entry, see exactly which entries were removed and which ones they matched, and get a key map for your \cite commands.

如何使用「BibTeX 去重（合并重复参考文献）」？How do I use the BibTeX Duplicate Remover?

把一个或多个 .bib 文件粘贴进来（或一次选择多个文件），勾选判定规则，下方会列出每组重复项：保留的条目、被删除的条目和判定依据。去重结果可以直接复制或下载；如果被删条目的键与保留条目不同，用“键替换表”在正文里把旧键改成新键。Paste one or more .bib files (or select several), pick the matching rules, and review each duplicate group: kept entry, removed entries and the reason. Copy or download the result; if a removed key differs from the kept one, use the key map to update your \cite commands.

标题稍有不同还能识别吗？Are slightly different titles matched?

标题会先去掉大小写、标点、花括号和 LaTeX 命令再比较，例如 “{BERT}: Pre-training…” 和 “Bert: pre-training…” 会被认为相同；但同名不同年的条目不会合并。Titles are compared after removing case, punctuation, braces and LaTeX commands, so “{BERT}: Pre-training…” matches “Bert: pre-training…”; same title with a different year is not merged.

预印本和正式发表版本会被当成重复吗？Are the arXiv and published versions merged?

只有 DOI 相同，或标题和年份都相同时才会合并。arXiv 版本与正式版年份不同时会保留两条，你可以手动决定。Only when the DOI matches, or title and year both match. If the arXiv and published versions have different years both are kept for you to decide.

「BibTeX 去重（合并重复参考文献）」免费吗？文件会上传吗？Is the BibTeX Duplicate Remover free? Are my files uploaded?

「BibTeX 去重（合并重复参考文献）」完全免费，无需注册。你输入的内容只在本机浏览器里处理（并保存在本机方便下次继续），不会上传到任何服务器，适合处理未发表的论文和数据。The BibTeX Duplicate Remover is free with no sign-up. Everything you enter is processed in this browser only (and kept locally so you can continue later); nothing is uploaded, so it is safe for unpublished papers and data.