Der / Die / Das Checker
Predict masculine (der), feminine (die), or neuter (das) gender from endings and meaning rules, plus inspect plurals and full 4-case declensions.
Check noun genders (der / die / das), conjugate irregular and separable verbs, calculate weak/mixed/strong adjective endings, split long compound nouns, and practice German sounds right in your browser.
Predict masculine (der), feminine (die), or neuter (das) gender from endings and meaning rules, plus inspect plurals and full 4-case declensions.
Conjugate regular, irregular (strong/mixed), modal, reflexive, and separable-prefix German verbs across Präsens, Präteritum, Perfekt, Konjunktiv II, and Imperativ.
Enter any determiner, adjective, and noun to see the exact -e, -en, -er, -es, or -em ending across Nominative, Accusative, Dative, and Genitive — with a Preposition-to-Case helper.
Break long German compound nouns (like Krankenhaus or Kühlschrank) into their component stems, linking letters (-s-, -n-, -er-), and final-noun article.
Color-code German clauses to spot Position 2 (V2), Vorfeld swaps, Satzklammer verb brackets (separable prefixes & Partizip II), TeKaMoLo adverb order, and verb-final Nebensätze.
Convert integers (-999M to 999M), ordinals (erste, hundertste), Euro/Cent prices, spoken years (1999), 24h vs. colloquial clock times (halb drei), and German text back to digits.
Click A–Z plus Ä, Ö, Ü, ß to hear de-DE audio and study IPA rules. Includes six tricky sound-cluster breakdowns and an interactive minimal-pair ear drill.
Inspect syllable stress (separable vs. inseparable prefixes, -ieren), Ich/Ach-Laut, Swiss vs. German ß/ss, and practice phrases with browser de-DE audio & microphone feedback.
Type German umlauts, Eszett (ß/ẞ), Euro, and low-high quotes („ “) on a full virtual QWERTZ layout with smart ae/oe/ue conversion, auto-saved drafts, and read-aloud playback.
Drill high-frequency German verbs, gender-coded nouns (der/die/das), and practical survival phrases with flip cards, spaced repetition status, and de-DE audio.
Estimate your German level across A1–C1 with 30 interactive grammar & vocabulary questions and receive tailored guide recommendations.
Generate copy-paste HTML embed snippets for our Verb Conjugator, Der/Die/Das Checker, and Number Converter with Light, Dark, or Auto themes.
Daily 5-letter German word & case-builder challenge
Browse full verb conjugation tables by infinitive
Look up der/die/das nouns with plurals and cases
Essential everyday phrases with audio and grammar notes
Structured A1–C1 grammar explanations with examples
Clean A4/Letter study sheets for offline revision
Yes. Every interactive checker, calculator, converter, soundboard, keyboard, flashcard deck, and CEFR level test on GermanLogic runs directly in your browser without creating an account or hitting paywalls.
Start with the Alphabet Soundboard to master ä, ö, ü, ß, and ch/ie/ei sounds, then bookmark the Der/Die/Das Checker alongside the Number & Time Converter for everyday nouns, prices, and telling time.
The website uses your browser’s built-in de-DE speech synthesis engine, which runs locally on your operating system once a German voice is available. On Android, the GermanLogic app also works 100% offline using your device voice.
Yes! Visit the Embeddable Widget Builder to generate clean, auto-resizing iframe code for our Verb Conjugator, Der/Die/Das Checker, and Number Converter in light, dark, or auto mode.