Citation.js vs Citation Machine

Citation.js converts reference data into CSL-JSON and formats references in styles such as APA and Vancouver. It accepts inputs including BibTeX, BibJSON, DOI, and Wikidata, as well as identifiers such as ISBN, PubMed and PMC IDs, GitHub repository URLs, and npm package URLs. Supported formats include JSON, CSL-JSON, BibLaTeX, RIS, YAML, CFF, and Zenodo Deposit JSON. Identifier resolvers include DOI Content Negotiation, Google Books, OpenLibrary, NCBI’s Literature Citation Explorer, and the Wikidata MediaWiki API. A modular package structure lets users add format and identifier-source plugins as needed; preloaded styles and locales are available for formatted references. Citation.js supports Node.js and browsers, offers a web interface and API, and includes a command-line interface for reading input files, text, or standard input and writing output files or standard output. Example applications include an HTML API wrapper, a Chrome extension for Dutch NWO ISAAC publication data entry, and a BibTeX generator. It is MIT-licensed open-source software, available free.

Citation Machine is a web service for generating citations, helping with writing and checking student assignments for plagiarism. It supports thousands of citation styles, including MLA, APA, Chicago and Harvard, and lets users export bibliographies or works cited pages to Google Drive or Microsoft Word. An account can keep citations saved in one place. The Writing Assistant provides feedback on spelling, grammar, punctuation, clarity and flow, and offers paraphrasing. Its plagiarism checker compares writing with billions of sources and reports the share of similar language. Citation Machine Plus advertises plagiarism scans, 7,000+ citation styles, 400+ advanced grammar errors and in-text citations. A free 3-day trial is offered and can be canceled anytime; the listed Plus trial price is free. Formatting guides and examples cover MLA, APA, Chicago, full citations and in-text citations. The audience described in its style directory includes high school, college and university students, teachers and independent researchers. Help Center and support pages are linked, and Citation Machine identifies itself as a Chegg service.