Grammar scenarios
Ready-made drills for essential grammar rules. Each session has 10 sentences with hints and instant validation.
Master Dutch through immersive exercises
LangTrainer is a free online trainer that helps you improve grammar and vocabulary through dynamic exercises and personal analytics. We actively develop the project and release new exercise packs on a regular basis.
Join today — your progress stays with you and the exercise library grows every week.
Why learners choose LangTrainer
We bring the best parts of live courses into a convenient online format.
Sentence builder
Assemble correct answers from words, compare them with the reference, and see mistakes immediately. Add new words straight to your vocabulary.
Personal analytics
The dashboard shows your average score, attempt history, and latest achievements for every exercise. Track progress and uncover weak spots.
How the training works
- Pick your focus. Grammar, words, or sentence assembly — everything is available for free.
- Work through 10 sentences. Built-in hints explain the rule, and mistakes turn into vocabulary prompts.
- Track the results. The dashboard refreshes after every run, highlighting improvements and recent attempts.
Our approach relies on spaced repetition with variation: theory sticks, and new words stay in memory thanks to context.
No paywalls
LangTrainer is completely free: no trials, no hidden fees.
Active development
We ship weekly updates: new exercises, UI refinements, and fresh vocabulary sets.
Community-driven
Send us exercise ideas and bug reports — we act fast and bring community requests onto the roadmap.
Frequently asked questions
Is LangTrainer really free?
Yes, all exercises and analytics are available to every user. The community keeps the project running, so just share the link with friends.
How do I add words to my personal vocabulary?
During a session, click the highlighted word — it instantly appears in your vocabulary, ready for later review.
Do I need any special setup?
No. The app runs in your browser and is optimized for desktop and mobile devices. Just sign in and start practicing.