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桜
さくら
cherry blossom
An e-paper flashcard device you build yourself. It holds your vocabulary, fits in your pocket, and works without a phone — just you and the language.
Search any word in English or Japanese at frashcard.com. Results return the kanji, hiragana reading, meaning and JLPT level via Jotoba. Save what you want to study.
Your saved words are stored in a cloud deck tied to your account. Add from search results, type them in manually, or import a CSV. Edit anything, delete anything.
A small e-paper screen built on an ESP32 microcontroller. The parts cost under $30, the build takes an afternoon, and the result is a dedicated device that holds your vocabulary and does nothing else.
Go to frashcard.com and search any word in English or Japanese. The dictionary returns the reading, meaning and JLPT level from Jotoba.
Click to save words to your deck. Edit the meaning if you want it phrased differently. Use Quick Load for a pre-built N5 set if you're starting from scratch.
Open Chrome, connect the device over Bluetooth, and push your deck across. The cards write to the device's memory and stay there until you update them.
Pick up the device. Tap to reveal the reading, tap again for the meaning. Hold to shuffle the deck. No app, no signal, nothing else on the screen.
There's no default word list. You decide what goes in — a word from a song, something you read, a phrase you heard and couldn't place. The deck is a record of your own contact with the language, nothing more.
build a deck from words that mean something to you, transfer it over Bluetooth, and study anywhere
open frashcard →