Zotero

Online LaTeX editor with real-time collaboration. Write academic papers, theses, and technical documents in LaTeX without installing anything. The standard for academic publishing. Compilation happens server-side with a full TeX Live distribution, so a package never has to be installed locally.

Google's grounded research notebook — upload sources (PDFs, Docs, URLs, YouTube links) and get answers, study guides and its famous AI podcast conversations built only from your material. Serves a minimal-ui web manifest, so it installs from the address bar as a focused research app. Free with a Google account.

Interactive mathematics for all levels — geometry, algebra, calculus, statistics. Create dynamic constructions, share interactive visualizations. Free for students and teachers forever. Constructions stay dynamic, so dragging a point updates every dependent value and shows the relationship rather than one case.

The minimalist typing test the internet standardised on — clean interface, dozens of modes, languages and themes, with detailed WPM, accuracy and consistency analytics after every run. Ships a standalone PWA manifest, so you can install it as a distraction-free typing app in its own window.

The open-source web editor for slide decks — create, present, and share presentations from the browser, with live audience interaction. The project is now archived: the hosted editor is offline, but the code remains open source and self-hostable.

Collaborative virtual whiteboard with a hand-drawn feel. Open-source Miro/Figma FigJam alternative — real-time collaboration, offline support, and end-to-end encrypted rooms.