Tolaria is a desktop app for macOS, Windows, and Linux for managing markdown knowledge bases. Notes are plain markdown files with YAML frontmatter, and each vault is a git repository. The project describes itself as free and open source, with no accounts, subscriptions, or cloud dependencies.
PolyGlot is a free, open-source tool for designing, creating and publishing constructed languages. It provides a lexicon with advanced search, a grammar repository, user-definable orthography with automatic pronunciation generation, and formatted publishing to PDF. It is compatible with Windows, macOS and Linux.
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.
Web Clipper helps clean, compare, sort, transform, count, or format text in the browser.
SilentNotes is an open source cross-platform note-taking app for Android and Windows. It uses a WYSIWYG editor with basic formatting, supports to-do lists and tags, and lets selected notes be protected with a password. Notes synchronize end-to-end encrypted between Android and Windows devices, and the app does not collect personal data and runs without ads.
Obsidian is a free and flexible note-taking app that stores notes privately on the user's device, including offline access. It supports links between notes, a graph view of relationships, Canvas for visual layout, and thousands of plugins and themes. Obsidian Sync provides end-to-end encrypted sync across devices, and Obsidian Publish turns notes into an online site. Optional add-on services are billed per user or site per month, billed annually.
NoteDiscovery is a self-hosted Markdown knowledge base described as free and open source. It includes wikilinks, graph view, a drawing editor, LaTeX math, and Mermaid diagrams, along with AI assistant integration via MCP. Notes are stored as plain Markdown files in folders, and the project offers a Docker-based setup.
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PolyGlot is a free, open-source tool for designing, creating and publishing constructed languages. It provides a lexicon with advanced search, a grammar repository, user-definable orthography with automatic pronunciation generation, and formatted publishing to PDF. It is compatible with Windows, macOS and Linux.
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.
Web Clipper helps clean, compare, sort, transform, count, or format text in the browser.
SilentNotes is an open source cross-platform note-taking app for Android and Windows. It uses a WYSIWYG editor with basic formatting, supports to-do lists and tags, and lets selected notes be protected with a password. Notes synchronize end-to-end encrypted between Android and Windows devices, and the app does not collect personal data and runs without ads.
Obsidian is a free and flexible note-taking app that stores notes privately on the user's device, including offline access. It supports links between notes, a graph view of relationships, Canvas for visual layout, and thousands of plugins and themes. Obsidian Sync provides end-to-end encrypted sync across devices, and Obsidian Publish turns notes into an online site. Optional add-on services are billed per user or site per month, billed annually.
NoteDiscovery is a self-hosted Markdown knowledge base described as free and open source. It includes wikilinks, graph view, a drawing editor, LaTeX math, and Mermaid diagrams, along with AI assistant integration via MCP. Notes are stored as plain Markdown files in folders, and the project offers a Docker-based setup.
