Features

Everything You Need
to Master JLPT Vocabulary

8,090+ JLPT words from N5 to N1, each with a real sentence, furigana you control, native audio and an illustration. Plus a community and progress tracking. Completely free.

Sentences & Furigana

Every word in context, with readings you control

Community Garden

Ask, share and celebrate with fellow learners

Smart Progress

Smart Review, streaks, charts and 13 ranks

A KotoNexa flashcard for 夏 (natsu, summer) with furigana, native audio, an example sentence and an illustration

Every Word in a Real Sentence

A translation alone doesn't tell you how a word is used. Every KotoNexa card pairs the word with a natural Japanese sentence and its English meaning, read aloud by a native voice, with an illustration to anchor it in memory.

Example sentence with translation for every word
Native audio for word and sentence, male or female voice
Proper furigana above kanji, as printed in real Japanese
An illustration on every card

Study with sentences

Your cards, your rules

Flashcard settings most apps don't offer

Every learner reads Japanese differently. KotoNexa lets you tune each card to the exact level of help you need, and take that help away as you grow.

Standout

Hide furigana for your level

Keep readings for harder kanji, but hide them for the level you are studying, so you actually practise reading.

Standout

Furigana on or off

Show readings above every kanji, or turn them off completely when you want a challenge.

Standout

Choose your mastery bar

Decide how many correct answers, from 1 to 10, it takes before a word counts as learned. Strict or relaxed, it's your call.

Male or female voice

Pick the native voice you prefer for words and sentences, or mute sound entirely.

Romaji toggle

A safety net for absolute beginners that you can switch off the moment you are ready.

Reveal on tap

Keep the answer hidden until you tap, and choose whether a tap reveals the meaning or the word, so you practise recall as well as recognition.

Swipe to answer

Swipe right for "I know it", left for "not yet". Use finger gestures or on-screen buttons.

Sentences and images on or off

Study with full context, or strip the card down to the word for a quick drill.

Daily word target

Set how many words you want each day. KotoNexa builds your deck around it.

JLPT N5 to N1

8,090+ JLPT words. Every level is ready.

Each level is a complete, curated deck, split into topic categories so you can study one theme at a time and see your progress per topic. Every single word has an example sentence, native audio and an illustration.

JLPT N5713words · Beginner Friendly

Sentences
Audio
Images

JLPT N4651words · Building Confidence

Sentences
Audio
Images

JLPT N32,071words · Everyday Fluency

Sentences
Audio
Images

JLPT N21,744words · Advanced Vocabulary

Sentences
Audio
Images

JLPT N12,911words · Mastery Level

Sentences
Audio
Images

Study by topic

Food & Drinks
Family & Relationships
Time & Date
Travel & Places
Nature & Weather
School & Work
Expressions & Greetings
Keigo & Polite Expressions
+21 more topics

Full word lists, sentences and audio unlock inside the app after a free sign-up.

29 topics

Study one theme at a time and see progress per topic

Every JLPT level is split into everyday topics like food, family, travel and work, so you learn words that belong together instead of one long random list.

JLPT N5Topics

Family & Relationships100%
Food & Drinks64%
Time & Date38%
Colors100%
Nature & Weather12%
Body & HealthNew

Pick one topic, mix several, or study the whole level at once.
Every topic shows how much of it you have learned.
Finish a topic and it is ticked off, so you always know what's left.

All topics across N5 to N1

Direction & Position
Family & Relationships
Colors
Animals & Birds
Food & Drinks
Fruits & Vegetables
Nature & Weather
Time & Date
Body & Health
Clothing & Accessories
Transportation
School & Work
Hobbies & Sports
Technology & Media
Travel & Places
Counter
Numbers
Phrases
General Things
Home
Daily Life
Conjunctions & Connectors
Expressions & Greetings
Keigo & Polite Expressions
Society & Economy
Actions & Events
Concepts & Ideas
Feelings & Opinions
Misc Vocabulary

Start Learning Free

Smart Review

Words keep coming back until you truly know them

Swipe right when you know a word, left when you don't. KotoNexa tracks every answer and moves each word through five stages, so you spend time on what you're about to forget, not on what you already know.

New

You haven't seen this word yet.

Started

You've answered it once.

Improving

Seen several times, still building.

Finalizing

One correct answer from mastery.

Learned

You hit your mastery bar.

Every daily deck is balanced for you

New 30%Started 30%Improving 20%Finalizing 20%

Fresh words keep you moving forward, while words you have started, are improving on or are one step from mastering come back at the right moment. If one stage runs out, the deck fills from the next one, so you always get a full session.

Hard words mode

Drill only the words you keep missing, so weak spots get extra attention.

Still learning mode

Review only words you have started but not mastered yet, to push them over the line.

Your mastery bar

Set how many correct answers make a word "learned". Raise it for exam-level confidence.

Start Tracking Your Progress

Community Garden

Connect, share, and learn together.

All PostsAnnouncementsQuestionsProgress

jass

What's the difference between この and その?

Community Garden

Learning a language alone is hard. The Community Garden is a study group built into the app: ask about a confusing word, share your streak, post a rank-up and cheer others on, without switching to another platform.

Ask and answer vocabulary questions
Share progress, streaks and rank-ups
Announcements and study tips
Notifications when someone replies
A friendly space with clear community guidelines

Join the community

Smart Progress Tracking

See exactly where you stand. Set a daily word target, keep your streak alive, and watch your weekly chart and learned-words list grow level by level.

Daily word target you choose
Streaks and consistency tracking
Weekly activity chart
Learned-words list and per-word status

Track your progress

Mon 26Tue 27Wed 28Thu 29Fri 30Sat 31Sun 1

24Learned

10Target

Mon

Tue

Wed

Thu

Fri

Sat

13 Ranks & Badges

Turn study time into an adventure. Climb from Minarai to Kamisama, unlock badges and show your rank ribbon in the community.

Rank 1MinaraiNew Learner
Rank 2KohaiJunior Learner
Rank 3BokenshaExplorer
Rank 4NinjaActive Learner
Rank 5SamuraiDisciplined Learner
Rank 6SenpaiCommunity Helper
Rank 7BushiExperienced Warrior
Rank 8KishiElite Member
Rank 9KenshiMaster Swordsman
Rank 10SenchoCommunity Captain
Rank 11TaichoSquad Leader
Rank 12DanchoGuild Leader
Rank 13KamisamaLegendary Figure

Start climbing

Choose Your Avatar

Pick one of 32 hand-drawn companions. Your avatar shows up on your profile, beside every community post and inside your rank ribbon, so other learners know it's you.