NotePack
Privacy oriented, note taking app. No cloud, no accounts, no tracking, open source workspace for productivity. Privacy by design. no clouds, no accounts, only open source software. No vendor lock-in, notes stored as plain files in directories, only open standards. Fast desktop application. Notepack is perfect workspace for your notes. Idea behind this application is to create desktop, fast as possible, open source, using open standards, without vendor lock in, privacy oriented note taking app. Instead of search/replace windows all search feature Located into toolbar, clipboard manager, and recurring tasks infinity loop. Multiple workspaces, multiple notes in workspace. Multiple note storage backend, filesystem and WebDav supported right now. Encryption using zip AES algorithm (note packed as zip archive with password protected). Easy note switch using only shortcuts.
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TagSpaces
TagSpaces is privacy aware, cross-platform file browser with note-taking capabilities. It helps you organize your files and folders with tags and colors. Free downloads are available for Windows, macOS, Linux, and Android.
With the built-in advanced markdown editor, you can create notes that can include tables, todo-lists, math formulas, or diagrams. TagSpaces can connect to any folder on your hard drive and provide a convenient way to browse its content. You have the ability to add labels called tags to any file or folder. Using tags along the folder hierarchy allows you to have cross-references in the folders. The built-in search allows you to find files with any combination of tags. On top of that in the Pro version, you can add descriptions and geo-tags to files and folders. The Pro version gives you the ability to turn every folder to a Kanban board, which can be useful in many ways.
With the TagSpaces Web Clipper, you can collect web pages and bookmarks from the Web.
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NoteRich
NoteRich is a smart note-taking app built around rich editing, AI memory, and local-first privacy. Your original notes stay 100% on your device, while AI features use only minimal context temporarily, without compromising privacy. It combines Markdown and rich text in one workspace, allowing users to write polished documents or work quickly with code-friendly syntax. Notes can include tables, charts, code blocks, math formulas, Mermaid diagrams, Graphviz graphs, ECharts visualizations, attachments, and media, making NoteRich useful for research, documentation, planning, and personal knowledge management. Its AI assistant is powered by local notes and gets smarter over time, helping users scan and extract content, summarize ideas, ask questions, and generate personalized insights from their own knowledge base. NoteRich’s AI Memory transforms a passive note collection into an active, intelligent knowledge base by combining local-first privacy with retrieval-augmented generation.
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Tresorit
Tresorit is a zero‑knowledge, end‑to‑end encrypted cloud collaboration platform built for organizations that handle sensitive data. It enables secure file storage, syncing, and sharing while ensuring that only data owners and authorized recipients can access content—Tresorit itself cannot. Files are encrypted on the user’s device before upload and remain protected throughout storage and sharing.
The platform supports secure internal collaboration and external data exchange through encrypted file sharing, secure email links, digital signatures, and encrypted data rooms for client and partner collaboration. Tresorit provides granular access controls, auditability, and configurable data residency to help meet strict security and compliance requirements. Designed as a privacy‑first alternative to traditional cloud tools, Tresorit allows teams to collaborate productively without compromising control, confidentiality, or regulatory obligations.
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