CoWriter is a general-purpose AI-powered writing assistant that can help you with editing, citations and content creation in your own voice. It's got a bibliography library, citation formatting help, and a range of writing styles and tones. It's good for academic research, content creation, technical writing and more, with pricing levels for different levels of use.
Another good option is Jenni, an AI-powered academic writing assistant that supports multiple citation styles (APA, MLA, IEEE, Chicago and Harvard). Jenni can edit text, manage citations and offer AI-powered autocomplete, and you can import .bib files in bulk and export to LaTeX, .docx and HTML. It also comes with a chat assistant to summarize research papers and generate content from PDFs you upload, making it a good all-purpose tool for many academic and writing tasks.
Edde is geared for students, academics and researchers trying to get their work done more efficiently with a collection of tools, including a citation manager that'll format citations in different styles. It also offers real-time suggestions, grammar checks and stylistic editing, as well as a research assistant and subject guides. With free and professional tiers, Edde can help you improve your writing quality and get your citations under control.