A LITTLE CLARITY. A LOT MORE JAPANESE.
Small particles.
Big understanding.
Make sense of は, が, に, and で. Explore clear guides, everyday examples, and little moments of practice that help Japanese click.
No account needed · Go at your own pace
01 — JAPANESE, IN EVERYDAY LIFEUnderstand the rule. See it in life. Try it yourself.
YOUR SPACE TO MAKE JAPANESE MAKE SENSEFIND YOUR STARTING POINT
What would you like to untangle?
Starting fresh or stuck between two particles? There’s a path for that.
A GOOD PLACE TO BEGIN
Your next “oh, now I get it.”
は vs が: topic, subject, and what you want to say
Learn when to use wa and ga with introductions, “who?” questions, contrast, and examples that show why context matters.
Explore the guideに vs で: where something is, or where you do it
Choose ni or de by looking at the verb. Compare being at a café, studying there, destinations, and the means of travel.
Explore the guideJapanese particles for train travel: に, で, を, から, まで
Plan a Japanese train journey with sentences for transport, destinations, boarding, getting off, and asking about travel time.
Explore the guide
LESS MEMORIZATION. MORE MEANING.
Take your Japanese
out into the world.
Go by train. Get on the train. Get off the train. The same train, three different particles. A real situation makes the difference easier to see—and remember.
Learn through a train journeyFROM UNDERSTANDING TO INSTINCT
A little practice.
A little more confidence.
Get the explanation here. Build the habit with ParticleQuest. Practice the contrasts that trip you up, understand each answer, and return to your mistakes—even when you’re offline.
Make room for a little practiceUnderstand every answer
See the rule, the common trap, and a contrasting example.
Turn confusion into a next step
Practice your weaker particle pairs and revisit missed questions.
Offline, quiet, and yours
One-time purchase. No account. Progress stays on your device.
Can I learn here for free?
Yes. Every guide and browser practice question is free to read and use, without an account. The paid app adds structured lessons, offline practice, and review of your mistakes.
Who is ParticleQuest for?
Learners who can read basic hiragana and want to understand Japanese particles more clearly. The app is designed for beginner to intermediate practice, including learners preparing for JLPT N5–N3. It is an independent study tool, not an official JLPT product.
Is the app a subscription?
No. It is a one-time purchase on your chosen app store. Check the store for the current price in your region and its purchase terms. The website’s learning library stays free.
Can I practice offline?
The downloaded app works offline, including lessons and review. This website needs a connection to load its pages. Once a practice page is loaded, its questions run in your browser.
Where is my practice data stored?
The app keeps your learning progress on your device. Website quiz answers stay in the current page session and are not sent to us. We do not add advertising or analytics trackers to the website. See the privacy policy for hosting and support details.
ONE SMALL STEP, EVERY DAY
Make Japanese a little clearer.
iOS & Android · One-time purchase · Fully offline practice