Rnote is a free and open source note taking software for Linux. It is written in Rust and released under GNU General Public License v3.0. It is a vector based note taking application for handwritten notes. You can also to annotate documents and pictures. It comes with marker, brush and shaper tools, eraser and selector. You can import images and export files as SVG, set the sheet format, draw with mouse and dark mode support.
CherryTree is a free and open source note taking software for Linux, Windows and MacOS. It comes with rich text editing and syntax highlighting for many programming languages embed files and images, tables and codeboxes support, spell check, hyperlinks support, Anchors and lists support, password protection, find and replace, TOC generator Export to PDF, HTML and Plain Text and import from several other note taking apps. All data are stored in single xml or sqlite file. You can easily organized all files in CherryTree. It is released under GPLv3+ license.
Midterm is a free note taking application for Windows, MacOS, Linux, iOS and Android. This note taking application mainly focused on education and studying. The desktop version is free for everyone but the mobile version is not free. Using this you can write notes, create quizzes and smart flashcards. You can sync your notes, create nested folders and collaborate and study with your friends through the build-in role system. Some other useful features are dark mode support, comes with visual text editor and many mode. All notes are available for offline read.
Obsidian is a free Markdown editor for Linux, MacOS and Windows. You can use Obsidian as note taking and Knowledge Base application. It is free for personal use and no signup required. All data are stored in your local system in plain text Markdown files. But you can sync that files with Dropbox. You can extend its feature with plugins. It supports Git versioning, Internal link, Graph view, Audio recorder, LaTeX math, Slides, Backlinks and word counts. It is still in beta stage and active development.
Knowte is a easy to use note taking software for Linux, MacOS and Windows. It is released under GNU General Public License v3.0. Using this you can take your notes quickly and easily organize your notes under your notebooks and collections. It is based on Electron, Angular and Typescript. You can also include images in your notes. You can export your notes on knowte file format or pdf and directly print your notes. You can change application colors, font size and languages. You can filter your notes easily by today, yesterday, this week and book marked.
OpenTodoList is a free and open source note taking and todo list software for Linux, MacOS, Windows, iOS and Android. Using this you can create and manage your todo lists, take notes and add images on your notes. It comes with two storage options local and cloud. If you want to sync your todos and notes, then you can use the built in sync function to synchronize across devices using NextCloud, ownCloud, WebDAV servers or any DropBox like sync services. You can manage your data in libraries here. It is based on Qt and QML and licensed under the GNU General Public License, Version 3 or later.
Taskbook is a free and open source task management & note taking app for Linux, MacOS and Windows. This is a simple but powerful command-line terminal app where you can manage your tasks and notes across multiple board. You can view the tasks and note in board & timeline views. You can configurable Taskbook app through ~/.taskbook.json file and the data stored in JSON file at ~/.taskbook/storage file. Some of the important features are atomic storage, task Priority, task favorite, Search & filter task and notes, you can restore deleted tasks and notes. It is released under MIT license.
Notable is a free and open source markdown based note taking and markdown editor for Windows, Linux and MacOS. Using this you can write your notes in markdown. It also supports KaTeX expressions and Mermaid diagrams. It comes with build in syntax highlighting, multi-cursors and a minimap and dark theme support. You can also edit your notes via any other 3rd party editors and synchronized via Dropbox. Some other important features are minimalistic zen mode, quick open, favoriting, pinning, deleting, tagging, Attachments, split-editor support. You can Import notes from Evernote or Boostnote and export notes to Markdown, HTML or PDF.
Standard Notes is a free open source simple note taking app with end to end AES-256 encryption for Windows, macOS and Linux, Android, iOS and Web. It comes in two versions free and paid. Free is always free and comes with sync your notes automatically between unlimited devices with no limit, offline access, password lock protection, tag support and deleted note recovery from trash. According to them you can only decrypt the notes not even them. You can use standard notes as personal note taking, todos, passwords manager, journal and log book. It is released under AGPL-3.0 lisence.
Procyon is a free and open source note keeping or note taking application for Linux, macOS and Windows. It supports plain text and markdown for notes. You can view your current notes in preview mode. It is still in early stage and you can use it as a your simple to user personal note taking app. It is using single SQLite database to store your notes. It you want to sync function, then you need to use Dropbox or Google Drive to sync your notes. It also comes with syntax highlighting and custom highlighter for your notes.
