Notion

Obsidian

Obsidian is a note-taking and personal knowledge management app built around plain markdown files stored locally on your device. Rather than a rigid folder hierarchy, Obsidian encourages a networked structure through bidirectional links, backlinks, and an interactive graph view that visualizes how notes connect. Because notes are just markdown files on disk, Obsidian is fast, works fully offline, and keeps your data portable - there is no proprietary lock-in. A large community plugin ecosystem extends the core app with everything from spaced-repetition flashcards to kanban boards and calendar views. Obsidian Sync and Obsidian Publish are optional paid add-ons for cross-device syncing and publishing notes as a website, but the core app is free for personal use.

Airtable

Airtable is a cloud-based database that allows users to organize and manage data in a flexible and customizable way. It combines the features of a database with the ease of use of a spreadsheet, making it accessible to users of all skill levels.

nb

nb is a free, open-source, note-taking app that allows users to create and manage notes in a simple and intuitive way. It's designed to be minimalistic and distraction-free, making it ideal for users who want to focus on their writing.

Outline

Outline is a web‑only, cloud‑hosted knowledge base that lets teams create, organize, and share documentation in real‑time. Built around markdown, it provides a clean, searchable workspace where information stays up‑to‑date and accessible to everyone. The platform focuses on simplicity and collaboration, offering granular permissions, version history, and integrations that keep your workflow smooth. It’s free to use and supported via email and GitHub Issues, making it an ideal choice for startups and expanding organizations.

Coda

Coda combines the flexibility of documents with the power of spreadsheets and the automation of apps, letting teams build custom workflows without code. Its building blocks let you embed tables, formulas, and interactive elements directly in a doc. The platform also offers AI assistance, real‑time collaboration, and extensive integrations, making it suitable for project tracking, product roadmaps, and knowledge bases. Users can start for free and scale with advanced features as needed.

Evernote Business

Evernote Business lets teams capture ideas, meeting notes, and project details in a single searchable workspace. It combines robust organization tools with secure sharing, so everyone stays on the same page.