What can I upload?
Paste text or use supported PDFs, notes, spreadsheets, and office files. StackMode keeps the source as the reference point rather than inventing claims.
StackMode · teaching engine
Drop in a PDF, spreadsheet, notes, or a plain topic. StackMode makes the structure visible, adds examples, and gives you a real teaching deck—not a wall of AI text.
Source to lesson
Start free with text. Signed-in members can save finished decks across devices.
Real output, not mockups
These are actual StackMode lesson screens. They show the level of depth, visual hierarchy, and practical prompts a finished deck is designed to deliver.
Straight answers
Paste text or use supported PDFs, notes, spreadsheets, and office files. StackMode keeps the source as the reference point rather than inventing claims.
Yes. Present with Enter, use the built-in annotation layer, and export a standalone HTML deck that works offline.
Signed-in members save structured decks under their own account. Guests can still build and export decks without creating an account.