Trilium Notes is a hierarchical note taking application with focus on building large personal knowledge bases.
qpdf-iloj
Qpdf Tools is an easy-to-use Qt interface for Ghostscript and Stapler, which makes it possible for normal users to manage their PDFs.
gImageReader
gImageReader is a simple Gtk/Qt front-end to tesseract-ocr.
Xournal ++
Xournal++ is a hand note taking software written in C++ with the target of flexibility, functionality and speed.
Super Produktiveco
Put a task into your project for today or schedule it to another day to keep your head free.
Fama
Keyboard centric notes.
CoolReader
Cross platform open source e-book reader.
Featherpad
FeatherPad is a lightweight Qt plain-text editor for Linux.
Liri teksto
Liri Text is a cross-platform text editor made in accordance with Material Design.
Lifeografo
Lifeograph estas eksterreta kaj privata ĵurnalo kaj aplikaĵo por prenado de notoj por Linuksaj labortabloj kaj Android.
Ĝi ofertas riĉan funkcion prezentitan en pura kaj simpla uzantinterfaco.