Lockbook is described as 'End-to-end encrypted notes, sketches, and files synced across devices with no personal info collected, using open-source, native apps for privacy and security' and is a Note-taking tool in the security & privacy category. There are more than 100 alternatives to Lockbook for a variety of platforms, including Mac, Windows, Web-based, Linux and Android apps. The best Lockbook alternative is Obsidian, which is free. Other great apps like Lockbook are Joplin, Logseq, Anytype and Notion.
Web-based tool for integrating text, images, audio, and video with syncing across devices, real-time collaboration, handwriting input, AI-powered summaries, checklists, scanning, reminders, search in handwritten notes, and advanced organization.
India
acreom is an actionable personal knowledge base for developers. It helps developers ship faster by centralizing personal and team context in one place.
United Kingdom
This program is a structured notetaking application based on GTK+ 3. Write your notes in instantly-formatted Markdown, organise them in a tree of folders that can be instantly navigated from within the program, and add hand-drawn notes by mouse, touchscreen or digitiser.
Self-hosted and open source note-taking app focused on minimalism and efficiency. Offers simple folder organization, keyboard shortcuts, instant URL formatting, and local media storage under /notes, reducing complexity in organizing thoughts.
Vietnam
Silver Bullet is an extensible, open source, personal knowledge management system. Indeed, that’s fancy talk for “a note-taking app with links.” However, Silver Bullet goes a bit beyond just that.
United States
Supports open formats like plain text, Markdown, RTF, stores notes on disk, offers live sync with external editors, iCloud Drive and Dropbox sync, elastic pane views, fast search, tagging, markdown preview, code highlighting, and robust multi-folder management.
Ukraine
Heptabase is a visual note-taking tool that helps you make sense of your learning, research, and projects. It helps you get into the flow of thinking and brings together everything you need to do better research.
United States
Q is a writing and memory tool that uses semantic search instead of folders. It allows markdown formatting on any device, provides math evaluations, and adds punctuation.
A local-first Markdown workspace that opens real folders in your browser and saves changes directly to .md files on disk.
Inkdrop is an AI-native Markdown note-taking app for developers, available on macOS, Windows, Linux, iOS, and Android, with end-to-end encrypted sync.
Japan
