BookStack is a free, open-source, self-hosted platform for organising and storing information, positioned as simple wiki software. Content is organised into books, chapters and pages, with a WYSIWYG or Markdown editor, built-in diagrams.net drawing, search, configurable branding and multi-lingual support. It runs on PHP with the Laravel framework and MySQL.
Saber is a cross-platform notes app built for handwriting. Notes are encrypted and stored so the server cannot read them, and can be synced across phones, tablets, and computers. The highlighter renders underneath the text without overlapping itself, notes can be organized into nested folders, and dark mode darkens the notes as well as the interface. The software is free and open source.
Notesnook is an open-source note-taking app with end-to-end encryption, available as desktop, web and mobile clients. It supports notebooks, tags, favorites, pins, linked notes, an app lock and publishing a single note as a web page behind an optional password. It offers sync across devices and imports from Evernote, Google Keep, Obsidian, Joplin and other apps and formats.
Mochi is a note-taking and spaced-repetition flashcard app built on Markdown. Notes and flashcards are created in the same workspace, where they can be linked together, organized with tags and filters, and reviewed on a schedule. The app is available for Mac, Windows, Linux, iOS, and Android.
QOwnNotes is an open source markdown note-taking application for Linux, macOS and Windows that works together with Nextcloud Notes. Notes are stored as plain-text markdown files on the computer, and sync services such as Nextcloud can be used to sync notes across devices. It is described as a native application optimized for speed and low processor and memory use.
SiYuan is an open-source, local-first, privacy-first note-taking app. It offers Markdown, block references, bidirectional links, databases, and multi-device sync for personal knowledge management. Content is organized at the block level, with built-in block-level and span-level elements, and blocks support zoom-in focus with breadcrumb navigation. A free tier includes local storage; PRO features require a one-time purchase and third-party sync services.
Notion World helps clean, compare, sort, transform, count, or format text in the browser.
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Saber is a cross-platform notes app built for handwriting. Notes are encrypted and stored so the server cannot read them, and can be synced across phones, tablets, and computers. The highlighter renders underneath the text without overlapping itself, notes can be organized into nested folders, and dark mode darkens the notes as well as the interface. The software is free and open source.
Notesnook is an open-source note-taking app with end-to-end encryption, available as desktop, web and mobile clients. It supports notebooks, tags, favorites, pins, linked notes, an app lock and publishing a single note as a web page behind an optional password. It offers sync across devices and imports from Evernote, Google Keep, Obsidian, Joplin and other apps and formats.
Mochi is a note-taking and spaced-repetition flashcard app built on Markdown. Notes and flashcards are created in the same workspace, where they can be linked together, organized with tags and filters, and reviewed on a schedule. The app is available for Mac, Windows, Linux, iOS, and Android.
QOwnNotes is an open source markdown note-taking application for Linux, macOS and Windows that works together with Nextcloud Notes. Notes are stored as plain-text markdown files on the computer, and sync services such as Nextcloud can be used to sync notes across devices. It is described as a native application optimized for speed and low processor and memory use.
SiYuan is an open-source, local-first, privacy-first note-taking app. It offers Markdown, block references, bidirectional links, databases, and multi-device sync for personal knowledge management. Content is organized at the block level, with built-in block-level and span-level elements, and blocks support zoom-in focus with breadcrumb navigation. A free tier includes local storage; PRO features require a one-time purchase and third-party sync services.
Notion World helps clean, compare, sort, transform, count, or format text in the browser.
