APK Explorer & Editor

An open-source APK explorer/Editor & Split APK/App bundle Installer for Android!GPL-3.0-or-later

TuxGuitar

TuxGuitar is a multitrack tablature editor and playerLGPL-2.1-only

AnkiEditor

An advanced note editor plug-in for AnkiDroidGPL-3.0-or-later

Classical Music Tagger

A plain audio file metadata editor especially for classical musicGPL-3.0-only

Squircle CE - Code Editor

Fast and powerful code editor & file manager for over 30 programming languagesApache-2.0

Emacs

The extensible self-documenting text editorGPL-3.0-or-later

SimpleTextEditor

Simple Text EditorGPL-3.0-or-later

PixaPencil

The #1, open source pixel art editor for AndroidGPL-3.0-only

萊姆輸入法

A smaller better Lime (Lightweight Input Method Editor)GPL-3.0-only

SimpleMarkdown

A simple markdown editorApache-2.0

Guileless Bopomofo Keyboard

A simple Bopomofo software keyboard (input method editor) for typing HanyuGPL-2.0-or-later

Every Door

Mobile OpenStreetMap editor for POI & micromappingISC

Kuaizi IME

Kuaizi IME is an efficient and fast Chinese Pinyin input method editor.LGPL-3.0-or-later

Vespucci

Edit geodata and contribute to OpenStreetMap project on-the-goApache-2.0

Markor

Text editor - Notes & ToDo. Lightweight. Markdown and todo.txt support.Apache-2.0

Carnet

Powerful note taking app with sync and online editorGPL-3.0-only

Fossify Gallery

Gallery with Photo editor. No Ads, Open-source, Private. No strings attached.GPL-3.0-only

ImapNotes3

A notes and checklist app that synchronizes in your IMAP mailbox.GPL-3.0-only

JaMuz

Audio Player synced with JaMuz DesktopGPL-3.0-or-later

Open Markdown Notes (OMN)

Notes taken application with Markdown, HTML, CSS and JavaScript supportMIT