Your debate prep,
finally intelligent.
Prep is for thinking, not searching.
Backfile reads your files, indexes every card you own, and finds your best responses against any argument — so you walk into rounds prepared, not scrambling.
Built by debaters, for debaters.
How it works
Three steps from file cabinets to your speech doc.
From raw backfiles to round-ready responses in three steps.
Parse any debate document
Drop a file and Backfile classifies every card, cite, and analytic instantly, no formatting fuss.
Document
Stacks
Upload a document to get started
Drop a .docx debate file in the sidebar. Backfile will parse every card, cite, and analytic automatically.
Locations
Build your Stacks
Index thousands of cards from your backfiles. Search across your entire library — every card, analytic, and block — in milliseconds.
Document
Highlight colour
Stacks
Update picks up new and edited .docx files, skips unchanged ones, and drops removed files from the index.
Showing: 1AC — Climate Warming.docx
Enter a search query to find cards and analytics across your Stacks.
Get your responses, ranked
Upload an opponent's case. Backfile identifies every position and pulls your best counter-evidence — cards and blocks, ranked by relevance.
Document
Stacks
Your Documents
Opponent Speech Doc
Upload an opponent's speech document to see recommendations from your Stacks.
Opponent Case Analysis
You’re a debater, not a file manager.
Roadmap
We’re building the future of debate prep.
Direct send to Word
Push Scout picks; cards, positions, and argument groupings; straight into the Word document you already have open. One click: no copy-paste, no file downloads.
Partner Sync
Prep like you have a team. Shared workspace so both partners see the same prep, same cards, same responses — updated in real time.
No dropped args. No wasted prep.
Eight minutes of prep. Zero wasted searching.