BUILDEUTSCH

See how German holds a sentence together.

Type any sentence — in English or in German — and watch it come apart. Every word takes the colour of its case or its gender, so the grammar is visible before anyone explains it.

Ich buche den frühen Flug.

I book the early flight.

Nominativ Akkusativ der verb

Builder

Take a sentence apart and put it back differently. Tap a word to change the tense, the case, the person — and watch the rest of the sentence rearrange itself the way German requires.

Ich hätte den Kaffee bestellen können.

Satzpuzzle

A correct German sentence, scrambled. Put the words back in order and the Satzklammer stops being a rule you memorised and becomes something you can feel.

Weil ich den Zug nehmen musste.

Flashcards

Spaced repetition that actually schedules. Words you keep getting wrong come back on their own — der, die and das included, because the article is the part everyone loses.

die Wohnung · der Termin · das Rezept

A1 to C1

One level setting drives everything. The same scene gives a beginner Ich brauche den Termin and an advanced learner Ich glaube, dass wir den Termin gebraucht hätten.

Built on a grammar engine

Sentences are generated by a German engine, not pulled from a list, and checked by a native-speaker review pass before they ship. If it reads oddly, that is a bug — and there is a button to report it.

No account, no ads

Nothing to sign up for. Your progress lives on your phone. There are no trackers, no advertising and no analytics of any kind.