Referencer
Referencer is a GNOME application to organize documents or references, and ultimately generate a BibTeX bibliography file. It is designed with the scientist/researcher in mind, and "document" may be taken to mean "paper" in general, although Referencer can deal with any kind of document that BibTeX can. Chief among Referencer's capabilities is the automatic acquisition of bibliographic information (metadata) for some kinds of documents. Upon adding a PDF file to a Referencer library file, it will automatically be searched for key identifiers such as a DOI code or arXiv identifier. If either of these is found, Referencer will attempt to retrieve the metadata for the document via the internet. However, metadata fetching for newer additions to arXiv is broken because of the change of format. Import from BibTeX, Reference Manager and EndNote. Referencer will automatically retrieve arXiv, PubMed and CrossRef metadata for PDF documents which have arXiv ID or DOI code.
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CiteMe
CiteMe is an academic citation generator that searches 8+ real academic databases and automatically formats references in 40+ citation styles. Databases include OpenAlex, Semantic Scholar, PubMed, Europe PMC, SciELO, Oasisbr, CORE, CrossRef, Google Books, and BDTD (Brazilian theses). Supported styles include ABNT, APA 7th, MLA 9th, Chicago, Harvard, IEEE, Vancouver, OSCOLA, ISO 690, Turabian, Nature, Science, and more. Features: Open Access PDF links via Unpaywall, BibTeX/RIS import/export, citation management with multiple projects, in-text citations and bibliographies, browser extensions for Chrome and Firefox, API v1 for developers, and ChatGPT integration via GPT Actions. Built with Next.js 14 and powered by Google Gemini AI for enhanced search accuracy.
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Citations Checker
Citations Checker is a browser-based citation checking and reference management service for students, researchers, writers, publishers, and other professionals. Users can check individual citations, verify reference lists in batches, and audit PDF, DOCX, BibTeX, or RIS documents. It identifies missing reference details, duplicate entries, inconsistent styles, retracted or unreachable sources, and validates DOIs, ISBNs, and URLs. Users can review suggested repairs, generate citations in more than 100 styles, including APA, MLA, Chicago, Harvard, and IEEE, and revisit saved checks and generated citations in a searchable workspace. Results and bibliographies can be exported in supported formats. Paid plans add larger monthly credit allowances, Google Scholar access, and API features at eligible tiers. The service supports academic and other research-based writing workflows that require users to review, organize, and format references.
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LumaCite
LumaCite is a browser-based reference manager and online citation toolkit for researchers, students, academic writers, librarians, editors, and research teams. Its cloud library lets users add sources manually, from online search, identifiers, PDFs, or web pages; organize records with folders, labels, and starred items; search by title, author, year, or identifier; edit bibliographic details; identify duplicates or missing metadata; and export selected references. Separate web tools generate citations and bibliographies, extract references from PDFs and text, check and complete citation metadata, reformat citation styles, and convert files such as BibTeX, RIS, EndNote, and CSL JSON. A Chrome extension captures references from research websites, and a Google Docs workflow inserts citations and builds bibliographies while writing. Public citation tools are available without a library account, while cloud library access requires approval-based beta access.
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