Capture inspiration from Pinterest, YouTube or web pages, organize ideas in one place and add your notes. Make mood boards or quick sketches to visualize and present ideas!

Tag based - Portable - Audio Recording - Drag n drop

An open source note taking and to-do application with synchronisation capabilities.

Privacy focused - Extensible by Plugins/Extensions - Knowledge Base structuring - Decentralized storage

Powerful knowledge base that works on top of a local folder of plain text Markdown files.

Extensible by Plugins/Extensions - Knowledge Base structuring - Backlink - Custom themes

End-to-end encrypted notes app

Password encryption - Privacy focused - Tag based - Extensible by Plugins/Extensions

A digital notebook application that gives people one place to gather notes and information.

WYSIWYG Support - Audio Recording - OCR - Screenshot OCR

The simplest way to keep notes.

Tag based - Integrated Search - Android Sync - Sync Across Devices

A cross-platform app for note-taking and organizing everything in your life.

Tag based - OCR - Screenshot OCR - PDF annotation

Protects your private notes with a password. Notebook PEA is a self-decrypting archive, that will never store unencrypted text on your disk.

Privacy focused - Portable - Authenticated encryption - Encryption

A secure, collaborative notebook

Password encryption - Android Sync - Sync Across Devices - Cloud sync

A desktop personal wiki with inline preview as-you-type and lots of plugins

WYSIWYG Support - Portable - Educational - Lightweight

An award-winning cloud-based Project Management software aims to help collaborative teams organize and manage from small enterprise projects to large-scale initiatives.

Subtasks - Ad-free - Drag n drop - Google Chrome Extension

Trilium Notes is a hierarchical note taking application.

Tag based - Tree of notes - Knowledge base - REST API

Text editor - Notes, ToDo & Bookmarks. Markdown and todo.txt support.

Customizable - Bookmark organization - Lightweight - Multiple languages

Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.

Privacy focused - Tag based - Extensible by Plugins/Extensions - Customizable

Polar is a powerful desktop app for managing all your web content, books, and notes. Polar keeps all your content in one place, supports tagging, annotation, highlighting and keeps track of your reading progress.

Learn with Flashcards - PDF annotation - Google Chrome Extension - Sync with Anki

From work to play, To-Do is the easiest way to get stuff done, every day.

Offline mode - Cloud sync - Night mode/Dark Theme - Sharable lists

Online Notebook application: Zoho Notebook lets you combine text, images, audio, video, RSS feeds, documents and much more

Audio with notes - Cloud sync - Handwriting recognition - Outline organization

Laverna is a JavaScript note taking application with Markdown editor and encryption support. Consider it like open source alternative to https://alternativestox.com/project/evernote/.

WYSIWYG Support - Sync Across Devices - Cloud sync - Syntax Highlighting

Dendron is an open-source, local-first, markdown-based, note-taking tool built on top of VSCode. It supports all the usual features you would expect like tagging, backlinks, a graph view, split panes, and so forth.

Privacy focused - Extensible by Plugins/Extensions - Block reference - Bidirectional links

Cryptee is a safety and privacy focused, encrypted and cross-platform personal data storage service. You can write personal documents, notes, journals, store photos and all sorts of other files.

Privacy focused - Documentation - Encrypted Photo Storage - Encryption