Search words
type in english or japanese — we'll find the rest
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Manual entry
type the kanji, hiragana and english yourself
My deck
0 cards
Import CSV
bulk load your flashcard deck from a spreadsheet
Format: 3 columns, no header row needed
Column A = kanji | Column B = hiragana | Column C = english
Column A = kanji | Column B = hiragana | Column C = english
drop your CSV here, or click to browse
Export to Arduino
generate your sketch and flash to the device
Arduino sketch
Copy this code into Arduino IDE, then upload to your ESP32. Your full deck is embedded inside.
// add cards to your deck first
⬡ Send to Device wirelessly
Connect to your FrashCard device over Bluetooth and push your deck directly — no USB, no Arduino IDE needed. Chrome only.
not connected
Export deck as CSV
Save your current deck as a CSV file to back it up or edit in Excel.
Quick Load
load a preset deck generated fresh by AI — adds to your existing deck
N5 Common Words
20 essential everyday vocabulary — nouns, verbs, adjectives.
N5 Common Sentences
20 simple everyday phrases in natural Japanese.
Numbers & Counting
20 cards covering numbers, counters and quantities.
Days & Months
20 cards for days of the week, months and dates.