Apps similar to Xournal++ include Notesnook, which is open source with a free version. Other options are Microsoft OneNote, Excalidraw, Evince and MuPDF. There's no shortage of Note-taking Tools like Xournal++, with more than 50 alternatives for Windows, Mac, Android, Linux and the web.
Offers open-source, end-to-end encrypted notes with device-based privacy, cross-platform support, private vault, secure sync, offline access, markdown editor, exports to multiple formats, automatic backups, organizational tools, and strong encryption.
Pakistan
Comprehensive digital notebook offering organizers, shared notes, multi-device syncing, and optical character recognition, plus cloud-based data management for efficient information handling and accessibility.
United States
Excalidraw is an open-source whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them. Available directly online as a web app and also through CodeSandbox to easily see how the code works, and the app is available for self-hosting.
Czechia
EU
Supports viewing and editing PDF annotations, displays multiple formats such as PDF, Postscript, DjVu, comic books, TIFF, DVI, XPS, remembers per-document zoom and position, features search, table-of-contents navigation, SyncTeX integration, and printing.
United States
MuPDF offers a highly versatile PDF, XPS, and eBook interpreter, customizable as a renderer, viewer, or toolkit. Features include digital signatures, redactions, form filling, annotations, and page manipulation, ideal for mobile, eBooks, and embedded apps supporting Java, C++, and Python.
United States
Seamlessly view, annotate, and collaborate on PDFs with freehand drawing and sticky notes. Utilize cloud storage for effortless access and upgrade for advanced editing and conversion to formats like Word and Excel.
United States
Butterfly is a note-taking app where your ideas come first. You can paint, add texts, and export them easily on every device. This app works on android, windows, linux, and in the web.
GermanyEU
OpenBoard is a cross-platform (Linux / Windows / macOS) interactive whiteboard application. It is currently maintained by the Education Department (DIP) of the Canton of Geneva in Switzerland.
Manage documents effortlessly, edit PDFs, create them from other formats, and e-sign anywhere. Secure sharing and comparison tools ensure smooth workflows and data protection. New AI Assistant offers quick document insights. Perfect for desktop and web platforms.
United States
Rnote aims to be a simple but functional note taking application for freehand drawing or annotating pictures or documents. It eventually should be able to import / export various media file formats.
AustriaEU
A (work-in-progress) cross-platform libre notes app. Please note that this app is still in early stages and not ready to trust with your notes yet.
United Kingdom
PDF viewer for macOS supports scientific papers, annotations, highlights, bookmarks, split view, exporting notes, AppleScript, multiple annotation types, bibliography integration, full-screen, search, and compatibility with various macOS versions.
