Tangent is an open source notes application for Mac, Windows, and Linux. It stores notes as markdown files on the device and links notes using wiki-style double bracket links. A Thread View shows sliding panels along the path of links, and a Map View shows nodes and connections created as a user writes. The app supports Markdown styling, tags, to-do items, embedded media, and a query language.
OpenTodoList is a todo and task managing application written in Qt with a QML user interface. It targets typical desktop environments such as Windows, Linux and Mac OS X, as well as mobile devices like Android phones.
HelixNotes is a local markdown note-taking app built with Tauri, SvelteKit, and Rust. Notes are stored as standard Markdown files on the local filesystem. The Codeberg repository is a historical backup; the project has moved to GitLab and is no longer updated there.
Etherpad is a real-time collaborative document editor that runs on the user's own server. Every keystroke is attributed to its author and revisions are preserved, with a timeslider for reviewing a document's history. The Apache 2.0 code supports plugins for comments, images, tables, drawing, video chat, authentication and optional AI features.
Socket.IO is a library that enables real-time, bidirectional and event-based communication between the browser and the server. It consists of a Node.js server and a JavaScript client library, with additional community-maintained client implementations in other languages. The client establishes a WebSocket connection when possible and falls back on HTTP long polling. The library offers auto-reconnection support and can send events to all connected clients across multiple servers.
MindForger is a desktop application for Linux presented as a thinking notebook and Markdown editor for personal knowledge management. It stores notes in Markdown, computes associations between notes locally, and automatically turns notebook and note names in text into links in the preview. It is also available for other platforms through packages listed in its installation documentation.
Columns is a list manager for organizing thoughts, notes, tasks, projects, watchlists and plans. The site describes lists as useful for planning, tracking, noting and managing, with a linear, column-based structure similar to mind maps. It presents example uses such as roadmaps, recipes, teamwork, novels, podcast schedules and checklists. The site states it is not a task manager.
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OpenTodoList is a todo and task managing application written in Qt with a QML user interface. It targets typical desktop environments such as Windows, Linux and Mac OS X, as well as mobile devices like Android phones.
HelixNotes is a local markdown note-taking app built with Tauri, SvelteKit, and Rust. Notes are stored as standard Markdown files on the local filesystem. The Codeberg repository is a historical backup; the project has moved to GitLab and is no longer updated there.
Etherpad is a real-time collaborative document editor that runs on the user's own server. Every keystroke is attributed to its author and revisions are preserved, with a timeslider for reviewing a document's history. The Apache 2.0 code supports plugins for comments, images, tables, drawing, video chat, authentication and optional AI features.
Socket.IO is a library that enables real-time, bidirectional and event-based communication between the browser and the server. It consists of a Node.js server and a JavaScript client library, with additional community-maintained client implementations in other languages. The client establishes a WebSocket connection when possible and falls back on HTTP long polling. The library offers auto-reconnection support and can send events to all connected clients across multiple servers.
MindForger is a desktop application for Linux presented as a thinking notebook and Markdown editor for personal knowledge management. It stores notes in Markdown, computes associations between notes locally, and automatically turns notebook and note names in text into links in the preview. It is also available for other platforms through packages listed in its installation documentation.
Columns is a list manager for organizing thoughts, notes, tasks, projects, watchlists and plans. The site describes lists as useful for planning, tracking, noting and managing, with a linear, column-based structure similar to mind maps. It presents example uses such as roadmaps, recipes, teamwork, novels, podcast schedules and checklists. The site states it is not a task manager.
