AI Tools

Innovative AI tools to support Japanese learning and education

Home>
AI Tools

Function

Domain

Available

Pragmatic Transfer Failure Teaching

"Polite in your native language, but rude in Japanese"—AI creates teaching materials for these common failure patterns

Problems Solved

• Struggling to answer "Why is it rude when I thought I was being polite?"
• Want to turn common mistakes by nationality/native language into classroom-ready materials

Key Features

✓ Auto-generates 3-step materials: literal translation from native language → reason for failure → correct expression
✓ Explains cultural and communication differences between native language and Japanese
✓ Provides multiple appropriate expression patterns for different situations

Try Now

Available

Pragmatic Transfer Failure Practice

"Speaking with your native language intuition can be rude..." — Practice through role-play while experiencing cultural gaps

Problems Solved

• Textbook examples alone don't show you how to speak in real situations
• I've upset people by speaking with my native language intuition

Key Features

✓ Role-play through 25 practical scenarios including business, school, and daily life
✓ Integrated feature to send your responses directly to error diagnosis
✓ Highlights pragmatic transfer risks and key points to watch out for

Try Now

Available

Pragmatic Error Correction

"The honorifics are correct, but why did I get scolded?" — AI diagnoses contextual mismatches in expressions

Problems Solved

• The honorifics are correct, but you're told the way you said it doesn't fit the situation
• You intended to be polite based on your native language intuition, but it ended up being rude instead

Key Features

✓ Automatically detects excessive or insufficient politeness and mismatches with TPO (Time, Place, Occasion)
✓ Provides revised text along with explanations of "why it should be changed"
✓ Analyzes influence patterns from your native language and provides personalized learning advice

Try Now

Available

Pragmatic Paraphrase

"OK to say to a friend, but to your boss...?" — AI rephrases based on context and audience

Problems Solved

• Not knowing how to phrase things politely to superiors
• Unsure how to adjust the same meaning for different situations

Key Features

✓ Automatically adjusts politeness level based on your relationship with the recipient
✓ Shows the reason "why it was changed" for each modification
✓ Expands your expressive range with multiple paraphrase variations

Try Now

Available

Pragmatics Analysis

"What does that phrase really mean?" — AI explains the true intentions behind Japanese expressions

Problems Solved

• Does "Let me think about it" actually mean they're already saying no...?
• I took their words at face value and was told I can't read the room

Key Features

✓ Display "literal meaning" and "true intention" side by side
✓ Extract and explain implicit messages hidden in conversations
✓ Analyze the level of politeness and determine if the expression is appropriate for the situation

Try Now

Available

Sociolinguistics Analysis

"What kind of person would say this?" — Analyze speaker profiles from speech patterns using an 8-category chart

Problems Solved

• Even with the same meaning, expressions vary completely depending on the speaker's position and relationships, causing confusion
• I understand textbook honorifics, but can't judge whether actual conversations sound natural

Key Features

✓ Display scores across 8 dimensions including politeness, hierarchical relationships, in-group/out-group, and gender expression
✓ Visualize speaker profiles including generational sense, regional characteristics, and temporal context
✓ Automatically suggest classroom activity ideas based on analysis results

Try Now

Available

Grammar Error Correction

Just enter a sentence you wrote—AI instantly corrects particle errors and unnatural expressions

Problems Solved

• Not confident which particle is correct: "wa" or "ga", "ni" or "de"
• Grammar should be correct, but still told it's "unnatural"

Key Features

✓ Real-time detection of typos, omissions, and particle errors
✓ Compare before and after corrections with diff display
✓ Explains why it's wrong and the reasoning behind it

Try Now

Available

Grammatical Paraphrase

Preserve the meaning while freely adjusting grammar difficulty — from N1 to N4, or N4 to N1

Problems Solved

• Textbook grammar level doesn't match learners and you don't know how to adjust
• Want to express the same content with different grammar patterns but can't find appropriate paraphrases

Key Features

✓ Specify N1–N5 grammar level and auto-generate paraphrases
✓ Visualize learning effect with side-by-side grammar comparison
✓ Expand your expressive range with multiple alternative variations

Try Now

Available

Japanese Language Education Grammar Analysis

"What JLPT level is this grammar?" — Analyze parts of speech, conjugations, and levels from a pedagogical grammar perspective

Problems Solved

• Want to quickly know what JLPT level this grammar corresponds to
• Confused by different terminology for parts of speech between school grammar and Japanese language education grammar

Key Features

✓ Analyze text using Japanese language education grammar terminology for parts of speech and conjugation forms
✓ Automatically estimate JLPT level (N5-N1) for each word
✓ Visual comprehension through color-coded display by part of speech and JLPT level

Try Now

Available

Semantics Analysis

Is "stubborn" really about the head? — AI unravels the ambiguity and metaphors in language

Problems Solved

• The same kanji characters have completely different meanings depending on context, making it difficult to determine which meaning applies
• Unable to understand the "true meaning" of metaphorical expressions and idioms

Key Features

✓ Identifies the most appropriate meaning from context and displays a list of other possible meanings
✓ Displays a comparison between the literal and actual meanings of metaphors and idiomatic expressions
✓ Visualizes relationships between synonyms, antonyms, and hypernyms in a map

Try Now

Available

Syntax Analysis

"What is this sentence really trying to say?" — Visualize sentence structure with tree diagrams

Problems Solved

• You know the words and grammar, but long sentences just don't sink in
• In long passages, you lose track of "who did what?"

Key Features

✓ Display sentence structure in tree diagrams to see subject-predicate-modifier relationships at a glance
✓ "Skeleton Mode" that strips away modifiers to extract just the core sentence structure
✓ Extract sentence patterns and provide comparative explanations with similar constructions

Try Now

Available

Morphological Analysis

"What part of speech is this word? What's its conjugation?" — Get instant analysis just by typing

Problems Solved

• I want to organize and view complex conjugations like "tabesaserareta" (was made to eat)
• I want to look it up in a dictionary, but I don't know the base form

Key Features

✓ Display part of speech, base form, conjugation, and reading for each word in a table
✓ Easy-to-read annotations color-coded by part of speech
✓ Save results as PNG images for class materials or sharing

Try Now

Available

Bilingual Display

Are you reading NIHONGO-AI blog translations and originals separately? — Compare two languages side by side, sentence by sentence

Problems Solved

• It's tedious to switch back and forth between translation and original text
• You want to compare parallel texts, but can't tell which sentence corresponds to which translation

Key Features

✓ Display two languages side by side with sentence-by-sentence comparison
✓ Click a sentence to highlight the corresponding translation
✓ Supports 18 language combinations

Try Now

Coming Soon

Handwriting OCR

Just take a photo of handwritten answers or notes—AI reads the text and even detects errors

Problems Solved

• Reading each handwritten submission one by one is time-consuming
• Easy to overlook handwritten errors

Key Features

✓ Automatically extract text from handwritten images
✓ Automatically detect and highlight typos and omissions
✓ Streamline grading work through digital text conversion

Try Now

Coming Soon

Tip-of-the-Tongue Search

"What was that word...?" — Reverse search for Japanese expressions from vague memories or images

Problems Solved

• You can explain the meaning, but the actual Japanese word won't come to mind
• You want to look it up in a dictionary, but don't know what to search for in the first place

Key Features

✓ Search for Japanese expressions from descriptions of concepts, meanings, or situations
✓ Multiple candidates are presented with example sentences to confirm usage
✓ Handles vague inputs like "a word that feels like this"

Try Now

Coming Soon

Onomatopoeia & Sensory Map

What's the difference between 'dokidoki' and 'wakuwaku'? — Explore the sensations of onomatopoeia through an interactive map

Problems Solved

• Too many onomatopoeia to choose from, making it hard to distinguish between similar expressions
• Dictionary definitions alone don't capture the subtle nuances of onomatopoeia

Key Features

✓ Explore onomatopoeia by sensation on an interactive map
✓ Explanations of differences and usage between similar onomatopoeia
✓ Intuitive understanding through nuance comparisons in your native language

Try Now

Coming Soon

Untranslatable Concepts Dictionary

How do you say 'mottainai' in English? — Explaining untranslatable Japanese words with their cultural context

Problems Solved

• Not knowing how to explain concepts that exist only in Japanese to learners
• Wanting to understand cultural nuances that dictionary translations alone cannot convey

Key Features

✓ Explains untranslatable concepts like 'mottainai' and 'wabi-sabi' with cultural background
✓ Compares 'closest expressions' by native language with 'what still doesn't translate'
✓ Participatory system where the dictionary grows through user contributions

Try Now

Coming Soon

Paragraph Correction

Check the overall flow of your written text—AI specifically identifies where 'connections are poor'

Problems Solved

• Each sentence is correct individually, but the overall text is said to have poor connections
• Not confident in the use of conjunctions and demonstratives like 'this' and 'that'

Key Features

✓ Analyzes the logical structure and sentence flow of the entire paragraph
✓ Specifically identifies inappropriate conjunctions and demonstratives
✓ Provides improvement suggestions for the entire text

Try Now

Coming Soon

Discourse Naturalness

"Are you speaking naturally throughout the entire conversation?" — Comprehensive evaluation of dialogue log naturalness

Problems Solved

• Each sentence is correct, but the overall conversation feels awkward
• Unsure if your responses to the other person's utterances are appropriate

Key Features

✓ Evaluates the naturalness and cohesion of the entire dialogue log
✓ Detects unnatural response patterns and suggests improvements
✓ Checks consistency of politeness and conversation flow

Try Now