Apps similar to Linwood Butterfly include Notesnook, which is open source with a free version. Other options are Excalidraw, Xournal++, Evince and Adobe Acrobat Reader. Note-taking Tools like Linwood Butterfly are a crowded field, with more than 50 alternatives for Windows, Mac, Android, Linux and iPad.
Lokaltools is a privacy-first, browser-based toolkit with 100+ tools across 8 categories. Everything runs entirely in your browser using WebAssembly — no files are ever uploaded to a server, no account is required, and nothing ever leaves your device.
Malaysia
PDF Reader - Editor, Scan & TTS by Dev_Software is a mobile solution designed to scan, edit, and listen to your documents in one place.
Türkiye
ZapPDF is the ultimate privacy-first PDF utility. Whether you are dealing with sensitive financial documents, legal forms, or heavy study materials, ZapPDF gives you the power to manage them instantly—without ever uploading your private files to a random cloud server.
Türkiye
Eleganote is a feature-rich note-taking and drawing app designed for Android users who want a premium stylus experience. Inspired by apps like GoodNotes, Eleganote brings smooth handwriting, precise drawing tools, and powerful canvas features to Android — a platform long...
Iraq
PDF Guard is a PDF editor that runs inside the browser tab and processes documents on your own device instead of uploading them. Files are read from disk into the tab's memory, handled by engines that run locally - pdf.
PDFSimplified is an online PDF editor. Edit text in PDF files, create PDFs from scratch or from a prompt, and edit or translate pages with AI.
Scribylus is a simple and focused desktop application for creating handwritten presentations, teaching materials, and study notes.
Germany
EU
A privacy-first PDF tool suite that processes files entirely in your browser. Merge, split, and convert PDFs without ever uploading them to a server.
FeatherPDF is a fast, lightweight native Windows app to view, merge, split, reorder, rotate PDF files 100% offline and private.
United States
A free-floating 2D Canvas for processing multiple PDF files simultaneously.
ItalyEU
ExcalidrawZ is a native Excalidraw client for Mac, iPad, and iPhone, designed for hand-drawn whiteboards, diagrams, sketches, visual notes, and technical explanations.
China
