Every element stays editable
Move, resize, recolor, and reorganize content after placing it. Your first attempt never has to be your final one.
Linwood Butterfly
Your ideas should not have to fit inside a page. 你的想法不必被侷限在一頁之中。手寫、速寫、標註並整理一切，都能在屬於你的無限畫布上完成。
為視覺思考者而設的工作空間
Section titled “為視覺思考者而設的工作空間”Capture lecture notes with a stylus, mark up a PDF, sketch an interface, build a diagram, plan a project, or mix all of them in the same document.
Draw with a stylus, touch, or mouse. Adjust stroke width, color, smoothing, and texture. If a mark is not quite right, edit it instead of starting over.
Powerful when your projects grow
Section titled “Powerful when your projects grow”常見媒體，集中於一份文件
Import camera photos, gallery images, PDFs, and SVGs. Combine them with your own notes and export clean results in common formats.
Reusable building blocks
Turn favorite layouts into templates and frequently used content into packs, stamps, palettes, and styles available across documents.
每個想法都有合適工具
Go beyond pen and eraser with labels, shapes, polygons, rulers, grids, textures, stamps, a laser pointer, presentation tools, and more.
讓 Butterfly 配合你的工作流程
Section titled “讓 Butterfly 配合你的工作流程”Start with a template that brings together your favorite backgrounds, tools, layers, areas, and pages. Save reusable content in packs so your next project starts with everything you need.
Works everywhere
Section titled “Works everywhere”Take your canvas from your desk to your next class or meeting. Butterfly runs on Android, Windows, macOS, Linux, and in your browser, with an iOS preview also available.
你的作品屬於你
Section titled “你的作品屬於你”Local by default
Keep working without an internet connection. Your documents live on your device unless you choose to save them somewhere else.
使用自己的雲端
連接 Nextcloud 等 WebDAV 服務，隨時隨地同步、備份與編輯筆記。
開放原始碼軟體
Butterfly 依 GNU AGPL-3.0 授權條款免費開放原始碼。文件可保存在有完整文件說明的 .bfly 與 .tbfly 格式中。 Keep your documents in its documented .bfly and .tbfly formats.
一起創作
實驗性的協作功能支援透過 Swamp 或自行架設的 WebSocket 伺服器進行端對端加密連線。
Butterfly，讓視覺思考不受限的畫布。
下載 ButterflyInstall the app on your phone, tablet, or computer.
Try the web app無需安裝，直接在瀏覽器中開啟畫布。建議使用以 Chromium 為基礎的瀏覽器。 Chromium-based browsers are recommended.
閱讀 Butterfly 部落格Follow releases, project news, and stories from development.
Learn the essentials建立第一份文件，探索完整工具箱。
Butterfly is built in the open and available in many languages. Join the community to share feedback, help with translations, or contribute to the project.