A bullet journal is a "getting things done" or "productivity" tool.
“A Bullet Journal is a modularized system of calendars, daily logs, and personalized notes, all brought together into a notebook with an index and daily usage. It’s easy to learn. You don’t have to read a book to learn the system.” (The Messy Bullet Journal, Part 2, retr. jan 2019.
“Though it does require a notebook, Bullet Journal® is actually a methodology. It's best described as a mindfulness practice disguised as a productivity system. It's designed to help you organize your what while you remain aware of your why. The goal of the Bullet Journal is to help its practitioners (bullet journalists) live intentional lives, ones that are productive and meaningful.” (about (retr. Jan 2019).
- Kanban board (a simpler method, for organisations)
2.1 General purpose note taking and management tools
2.2 Bullet journal software
- The bullet journal companion (by the inventor of the bullet journal). As its name says, it's not a full replacement for a paper-based bullet journal.
- Bullet Journal | Habit tracker | To Do List (Android application).
- Journal it! - Bullet Journal, Diary, Habit Tracker (Android app)
2.3 Other specialized tools
These need to be configured/purposed for use as bullet journal
- Trello, cross platform project management solution to create boards, lists and cards for individuals and teams. The free version is OK for individual use. Pro versions add software integration and team functionality.
- Taskade, a todo list application with lists, board and action views for mobile, web and desktop. “Taskade is a real-time collaboration app for your ideas, goals, and daily tasks.” (FAQ, Jan 2019).
- Various kanban board tools.
- Dynalist is a todo list application.
There exist dozens of "todo" and other simple planning tools, e.g. Tasks: Todo list, Task List, Reminder (reminder), some of which also can be useful. I suggest using a tool that can be used from several types of platforms, e.g. A windows laptop, a linux desktop and an Android phone.
- The Analog Method for the Digital Age by Ryder Carroll, the inventor of this method.
- The Messy Bullet Journal, Part 2, part of a discussion of ways to use a bullet journal (retr. Jan 2019).
- The 5 Best Bullet Journal Apps to Make Bullet Journaling Effortless