Note-Taking

ToText is an iPhone app that turns any recording into a transcript, a summary, tasks and answers to questions you ask about it. It also includes a dictation keyboard, which can help with interviews, lectures, meetings and field notes. Freemium.

PuppyOne is a local-first, open-source (Apache-2.0) workspace for documents, notes, PDFs, research and drafts. AI assistants work on the same project files across sessions, and changes made by AI can be reviewed and restored through version history. It is positioned as an Obsidian/Notion alternative, not a coding IDE.

PDFAnnotations turns PDF highlights and comments into reusable notes. Extract, clean, convert and organise annotations and export them to Markdown, CSV or plain text, with Pro formats for Obsidian, Notion, Excel and JSON. Processing happens locally in your browser.

LaTeX Autofill is a free, MIT-licensed, offline plugin for Obsidian. Type what you mean inside $...$ (in English or Chinese, e.g. 'integral', 'matrix') and pick a full LaTeX template instead of remembering commands. It is listed in the Obsidian community directory and makes no network or AI calls.

Coherence is an AI reading workspace for research articles and PDFs. Ask contextual questions about selected passages, annotate sources, and organise saved sources and notes in a smart knowledgebase. It supports PDF parsing and Markdown workflows, with web, Chrome and macOS access and a free plan.

PageStash is a fast, powerful web capture and research tool designed for analysts, researchers, and anyone who needs to save and organize online information. With one click, it captures full web pages (screenshots, HTML, and text), extracts key content, and organizes everything into a searchable knowledge base. Perfect for investigations, OSINT workflows, and research-heavy tasks.

NoteMe is a Chrome extension that empowers you to place notes anywhere on any website and access them all in one convenient popup. Your notes stay 100% local and private—no internet or external servers involved. Instantly jump back to the exact spot on any page, and easily share notes with others

Cosma is a document graph visualization tool. It modelizes interlinked Markdown files and renders them as an interactive network in a web interface. You can use Cosma to create a portable knowledge base, combining rich hypertextual descriptions with the affordances of a graph view, contextualized backlinks, automatically generated citations, metadata filters and more.

An open source research platform or ELN based on WordPress and the FAIR Data Toolkit that is Sustainable, Affordable, FAIR, and Easy.

visual networked and mind-mapping note taking app

visual networked and mind-mapping note taking app

Logseq is a joyful, open-source outliner that works on top of local plain-text Markdown and Org-mode files. Use it to write, organize and share your thoughts, keep your to-do list, and build your own digital garden.

Opensource knowledge management inside your vscode editor, with linked notes, and tools for publishing notes.

Create a static website by typing plaintext or Markdown.

A set of packages to create a digital garden with Gatsby.

Collaborative ELN and Project Management

Collaborative or private note taking on the web. Highlight and annotate websites in distinct notebooks.

Create your Second Brain by writing down your thoughts - or as the term used this theme topics - and their relations in markdown.

A cognitive tool to boost learning

Free, online mindmapping and flow charts

A personal knowledge management and sharing system for VSCode

Everything you need to do research: Plan, Experiment, Publish.

A free and open source electronic lab notebook designed by researchers, for researchers, with usability in mind.

MyMind is an idea note, quote, page, and image collector with the usual tag-style support. You add material from the web via a capable browser plugin; but, the standout feature is AI help in your search/retrieval of information, even without tags. It displays your saved material in a card grid—think Pinterest, Pocket, and similar—with selectable density and size. A large search box sits at the top with instant results while you type.

A knowledge base that lets you capture notes, code, and research lightning-fast. Everything adds to a web of ideas that’s easy to use at scale.

Tectonic is a modernized, complete, self-contained TeX/LaTeX engine, powered by XeTeX and TeXLive. Tectonic makes LaTeX easy to compile.

The first spaced-repetition powered note-taking tool that lets you structure knowledge exactly in the way you think about it.

card based note-taking with links between cards

note-taking with zettelkasten method (linked notes)

Online note-taking with zettelkasten method (connected notes)

Write, plan, collaborate, and get organized — all in one tool. Write connected notes with rich format and Export to markdown, pdf, etc.

Efficient and visual note-taking and knowledge management while reading

Online WYSIWYG Formula Editor . Fast and powerful Editing features, inputting Normal text, Math symbols, and drawing Graph.

Programmer's notebook, math + Markdown, code snippet.

Online Mindmap, FlowChart, MindMap, UI, UML and Network charts with Collabration in Real-time.

Diagram software that works as hard as your team.

Plectica is helps us managing our mind. It is more flexible than mindmaps.

Your research assistant & lab notebook, all in one app.

Read the Docs simplifies software documentation by automating building, versioning, and hosting of your docs for you.

Hosted directly from your GitHub repository. Just edit, push, and your changes are live. Integrated with Jekyll and turns markdown posts automatically. Jekyll is a tool for blogging.

Online tool for personal and team knowledge management.

Sphinx is a tool for python code documentation generation. It is also a very good tool to take digital notes since it supports images, equations, tables, code blocks, etc.

The online version of Mathematica!

A toolkit for coding and writing online. The UI is a bit outdated but the services are real hardcore.

Azure notebooks is simply a hosted Jupyter notebook.

NextJournal is the notebook for reproducible research. NextJournal provides poly-language notebooks and beautiful UI.

Google Colab is an online version of Jupyter Notebook which allows us to use free computation powers from Google and storage on Google Drive. Google Colab also comes with free GPU hours.

Agenda is a note-taking app that ties notes to a calendar, reminders and projects.

Not so lightweight but still very good for managing life especially since it has got a lot of integrations from a lot of other services.

Google Keep is light-weight. It comes with powerful search. The App ships with simple drawing and handwriting.