v1.0 — AI-powered morphology
Type any
Indonesian
word.
Understand
all of it.
Indonesian is agglutinative. One root word generates dozens of forms. Bahasa Builder maps every single one — with grammar, usage notes, and real example sentences.
Try it now →ROOT
ubah
BER-
berubah
MENG-
mengubah
DI-
diubah
PER-...-AN
perubahan
PENG-...-AN
pengubahan
TER-
terubah
Any form. Any entry point.
Type mengubah, perubahan, or diubah. The engine resolves it to the root ubah and returns every valid grammatical form. No guessing required.
Grammar made visible.
Each affix type has a fixed color. Intransitive is cyan. Active transitive is purple. Passive is green. You learn to read the color before you read the word.
AI on the miss. Cache on the hit.
First lookup calls the AI engine. Every subsequent lookup is a direct MongoDB read. Fast by default, intelligent when needed.
Open source
Part of a broader Indonesian language learning platform. Dictionary is the core feature. Sentence decomposer, spaced repetition, and audio coming next.
Start with
any word.