https://www.connectedpapers.com/ Connected Papers is a visual tool that analyzes around 50,000 papers to graphically arrange and present the most relevant ones, based on a similarity metric of co-citation and bibliographic coupling, to assist researchers in finding pertinent research.
https://elicit.com/ Elicit is an AI research assistant that automates literature review by finding relevant papers, summarizing content, and extracting key information.
https://www.tripdatabase.com/ Database is an online clinical search engine that helps users find high-quality research evidence for their practice or care needs, operating since 1997 under the motto 'Find evidence fast'.
https://researchrabbitapp.com/ ResearchRabbit is an online citation-based literature mapping tool designed to optimize reference searching for essays, minor projects, or literature reviews.
https://article-summarizer.scholarcy.com/summarizer creates summaries
INDISPENSABLE: a good notebook and a good pen
Writing: GDocs, MS Word
Code management: Github
Research projects and collaborations: Google Drive
FAIR data test: https://satifyd.dans.knaw.nl/
Time blocking: Reclaim
Project management and planning: Project Libre
More: 15 bookmark-worthy tools for researchers that cost you nothing and will save you time (& nerves) when researching, writing and publishing Twitter thread