Writing

Tasks.org: Open-source To-Do Lists & Reminders

Private, ad-free task lists! Optional sync with Google Tasks, CalDAV or EteSync!

Notesnook - Private notes app

A fully open source & end-to-end encrypted note taking app

Fitness Calendar

A private and fully offline activity tracker.

ImapNotes3

View, edit and synchronize HTML notes and check lists on your IMAP mailboxes

Standard Notes

An end-to-end encrypted note-taking app for digitalists and professionals

jtx Board journals|notes|tasks

Keep track of journals, notes & tasks - iCalendar compliant and syncable with yo

Joplin

A note taking and to-do app with sync between Linux, macOS, Windows, and mobile

Rank-My-Favs

Rank your favorite things, using simple pair-wise matchups.

LabLog

A digital lab notebook with automatic timestamping

SiYuan

A privacy-first, self-hosted knowledge management app

OpenSyncedLists

Create easy to sort lists

NotallyX - Quick Notes/Tasks

A simple and minimalistic open source notes app

PocketPlan

To-do list ✔️ Birthdays 🎂 Notes 📝 Shopping list 📜 Sleep reminder 💤

neutriNote CE

A hub of written thoughts in fast searchable plain text

Markor

Text editor - Notes & ToDo. Lightweight. Markdown and todo.txt support.

Orgzly Revived

Outliner for taking notes and managing to-do lists in Org-mode format

Thunderbird: Free Your Inbox

Thunderbird is a 100% open source, privacy focused email app.

My Brain

Productivity app for Tasks, Notes, Calendar, Diary, Bookmarks and more

Guileless Bopomofo Keyboard

A simple Bopomofo software keyboard (input method editor) for typing Hanyu

Butterfly

Powerful, minimalistic, cross-platform, opensource note-taking app

Linwood Butterfly Nightly

Powerful, minimalistic, cross-platform, opensource note-taking app

SimpleTextEditor

Simple Text Editor

Saber

The notes app built for handwriting

ntodotxt

Manage your todos in a todo.txt file

SimpleMarkdown

A simple markdown editor

Karbon

Advanced Text Editor for Power Users

MoasdaWiki App

Privacy-Friendly Knowledge Management App

Stroke Input Method (筆畫輸入法)

A minimalist Chinese keyboard.

Trime

Chinese IME with Rime Input Method Engine

Hammer [ALPHA]

A simple tool for building stories.