Question: I'm looking for a free editing tool that can track changes and preserve formatting in Microsoft Word documents.

If you want a free editing tool that can track changes and preserve formatting in Microsoft Word documents, editGPT is a good choice. This browser extension offers a Basic Editor for free that includes the ability to import and export Word documents with tracked changes and preserve formatting. It supports more than 20 languages and can improve writing quality with different editing levels and tone options.

Another tool worth considering is Trinka, an AI-powered writing assistant geared for academic and technical writing. Trinka offers tools to improve clarity, concision and impact through grammar and style checks, and a proofreader that applies tracked changes to entire MS Word documents. It also includes a plagiarism checker and other tools like a paraphraser and citation checker that can be very useful for academic writing.

Bit.ai is another powerful platform for document collaboration and track changes. It offers interactive living documents, AI-assisted writing and real-time collaboration features. With its powerful tracking tools, including real-time insights and trackable links, Bit.ai offers a secure and efficient way to share and edit documents, making it a good choice for collaborative work.