Privacy Friendly Notes allows you to take and manage notes on Android devices. It belongs to the Privacy Friendly Apps group developed by the research group SECUSO at Karlsruhe Institute of Technology. More information can be found an secuso.org/pfa



Reor is described as 'AI-powered desktop note-taking app: it automatically links related ideas, answers questions on your notes and provides semantic search. Everything is stored locally and you can edit your notes with an Obsidian-like markdown editor' and is a Note-taking tool in the office & productivity category. There are more than 100 alternatives to Reor for a variety of platforms, including Mac, Windows, Linux, Web-based and Android apps. The best Reor alternative is Obsidian, which is free. Other great apps like Reor are Joplin, Logseq, Anytype and Notion.
Privacy Friendly Notes allows you to take and manage notes on Android devices. It belongs to the Privacy Friendly Apps group developed by the research group SECUSO at Karlsruhe Institute of Technology. More information can be found an secuso.org/pfa



KleverNotes is a note-taking and management application for your mobile and desktop devices. It uses Markdown and allows you to preview your content.




Many Notes is a markdown note-taking app designed for simplicity! Easily create or import your vaults and organize your thoughts right away.

NoteSR is a secure and offline-first note-taking Android app that creates an encrypted storage space on your device. You can write text notes, attach any type of file to them, and open files directly inside the app — all fully encrypted using AES-256.








CrabPad is a fast, free Markdown editor built with Rust. Local-first, keyboard-driven, with Zen Mode, Command Palette, live preview, and support for KaTeX math, Mermaid diagrams, and GFM. Available for macOS, Windows, and Linux.




Ideon is an open-source, self-hosted alternative to tools like Heptabase and Kosmik, specifically designed for technical projects. It provides an infinite spatial canvas where users can organize information visually rather than in linear documents or folder structures.


Moolight is more than just a journal; it's a digital companion designed to make cherishing every moment simpler and more insightful.




TreeTime is an information organizer that stores text, numbers, and other data in linked trees. Mathematical operations like sums, ratios, and differences are calculated and updated on the fly. It exports to PNG, SVG, HTML, CSV, and plain text, and includes a configurable web interface.




AI executive assistant that records Google Meet, Zoom, Teams, Webex; transcribes and makes instant summaries: decisions, action items, minutes, smart titles. Search/tag, jump to quotes, export/share.



Knowledge is a tool for saving, searching, accessing, exploring and chatting with all of your favorite websites, documents and files.



