Summie

A distraction-free document editor built for everyone.

Download · Features · Getting Started

Summie started as a simple app for writing study summaries — and grew into a full-featured word processor. It has a clean writing environment, a built-in glossary (begrippen) that highlights terms live in your document, internal references, syntax-highlighted code blocks, and a dedicated flashcard learning mode. Documents are saved in a native .sumd format and can be exported to .docx. Vibe-coded with ❤️.

• Rich text editor with support for headings, bold, italic, underline, font sizes, and text color
• Two document modes — single continuous page or paginated multi-page layout
• Tables with interactive controls for adding/removing rows and columns
• Images with drag-and-drop support and inline editing
• Syntax-highlighted code blocks supporting 19 languages (JavaScript, Python, TypeScript, SQL, Rust, Go, and more)
• Word count displayed live in the sidebar

• Define terms with a keyword, description, and optional aliases
• Terms are automatically highlighted throughout your document as you write
• Autocomplete suggestions appear as you type recognized keywords
• A live begrippen counter shows how many glossary terms are present in the document

• Link any named reference to a target element in the document — text selections, images, tables, or code blocks
• Hovering a reference word shows a live preview tooltip of the linked section
• Click to jump directly to the referenced element

• Open your saved .sumd file in the dedicated learning module
• Select which glossary terms you want to practice
• Study with flashcards or a fill-in-the-blank practice mode
• Progress tracker built in

• Native .sumd file format with full save/open support
• Export to .docx (Word document) — preserves formatting, headings, code blocks, tables, and glossary highlights
• Recent documents list on the home screen with rename, delete, and "Show in Explorer" options
• Auto-save indicator for unsaved changes

• Document outline (inhoudsopgave) in the sidebar — auto-generated from headings, with scroll tracking
• Find & search within the document
• Frameless window with custom minimize / maximize / close controls

Download the latest release for your platform from the Releases page:

Platform	Format
Windows	.exe installer
macOS	.dmg
Linux	.AppImage

Requires Node.js v18+.

git clone https://github.com/ThermedWolf/Summie-Docs.git
cd Summie-Docs
npm install

# Run in development
npm start

# Build for your platform
npm run build

# Build for a specific platform
npm run build:win
npm run build:mac
npm run build:linux

Output is placed in the dist/ directory.

1. Launch Summie — you'll land on the home screen
2. Click Nieuw Document to create a new document (single page or paginated)
3. Use the toolbar to apply headings and formatting
4. Open the sidebar to manage your Begrippen (glossary terms) — they'll highlight automatically in your text
5. When you're ready to study, open your .sumd file from the Leren (learning) screen
6. Export to .docx any time via the file menu

Summie saves documents as .sumd files — a JSON-based format that stores your document HTML, glossary, references, and metadata. These files can be reopened in Summie and exported to .docx.

• Electron — cross-platform desktop shell
• electron-builder — packaging and distribution
• docx.js — .docx export

MIT © ThermedWolf