B Brainfy

Free tool · Import

Turn a CSV or Spreadsheet Into a Flashcard Deck

Already have your terms in a spreadsheet? Upload or paste a CSV of term, definition pairs and Brainfy builds an instant deck — with automatic delimiter detection — then study it with spaced repetition.

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Your data, instantly studyable

If your study material already lives in Excel, Google Sheets, or a plain CSV, there is no reason to retype it. Brainfy reads a two-column term/definition layout and turns each row into a card — and it auto-detects whether your file is comma, tab, or semicolon separated.

How it works

1

Export your sheet as CSV

From Excel or Google Sheets, save or download a CSV with term in the first column and definition in the second.

2

Upload or paste it

Drop the file into a deck or paste the text — Brainfy auto-detects the delimiter, so commas, tabs, and semicolons all just work.

3

Study and export back

Your rows become a deck for spaced repetition plus Learn, Test, and Match — and you can export back to CSV anytime.

Formats that just work

Frequently asked questions

What layout should my CSV use?

Two columns: term in the first, definition in the second — one card per row. A header row is fine. Comma, tab, or semicolon separators are auto-detected.

Can I paste instead of uploading a file?

Yes — paste the text directly into a deck and Brainfy detects the delimiter. CSV, TSV, Anki text, and Quizlet exports all work.

Does it handle Excel or Google Sheets?

Export your sheet as a CSV (or copy the cells) and import that. Brainfy reads the CSV/TSV, not the native .xlsx file.

Can I export my deck back to CSV?

Yes — every deck exports to CSV, which re-imports into a spreadsheet, Anki, or Quizlet. No lock-in.

Is it free?

Yes — free during beta, no ads, no signup needed to try.

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Brainfy is built by Aihan Mifthas · Last updated 2026-05-31. Open Brainfy →