Your safe space to practise English and ace your test
Type-the-word drills, grammar journeys, and native audio with instant feedback — built for anxious test weeks and calm daily habits alike.
ubiquitous
/juːˈbɪkwɪtəs/ · adjective
Smartphones have become ___ in modern life.
Type the word from memory:
Accuracy climbing
+18% this weekNative audio
Listen · repeat · master774
Grammar exercises
4 levels102
Idiom units
with audioB1–C1
Difficulty range
exam-aligned100%
Free, forever
no accountEnglish practice should be accessible to everyone — not locked behind expensive subscriptions.
That is why every exercise, audio voice, and progress chart on EngSandbox is free. Practice daily, close the tab, come back — your work is still here.
4
Levels per unit
B1 → C1 path28
Grammar chapters
advanced course65+
PTE drag & drop
real formats2
Exam tracks
PTE & IELTSEverything you need to prepare
Nine focused tools for grammar, vocabulary, pronunciation, and real PTE question types. The three marked Start here are the fastest way to a first correct answer — everything is free and your progress is saved automatically.
From nervous to ready in three steps
No onboarding, no paywall, no confusion. Just open an exercise and feel your confidence build.
Choose an exercise
Pick vocabulary, grammar, or audio practice. No sign-up, no setup — tap and you are in.
30 seconds to startPractise with audio
Hear native pronunciation, type from memory, and get instant corrections with clear explanations.
Listen · type · fixTrack your progress
Accuracy by topic, searchable history, and a review list that turns mistakes into mastery.
See growth weeklyHow our exercises are designed
Every feature in EngSandbox is built on established language acquisition research. Four principles govern how each exercise is built.
B1
B2
C1
C2
01
Tiered difficulty
Every exercise scales through four progressive difficulty levels. Beginners start with simpler word forms and context; advanced learners face rare collocations and nuanced usage.
Learners at B1 through C1 — the range tested by PTE and IELTS — all find appropriately challenging material.
02
Immediate feedback loops
When you type an answer, you see the result instantly. Correct answers reinforce the memory trace. Incorrect answers trigger a correction cycle — you see the right form and hear the pronunciation.
Type-the-word is chosen over multiple choice: it requires active production, which leads to far better retention than recognition alone.
03
Progressive hinting
Each word offers layered hints — starting with a definition, then collocations, then an example sentence. This scaffolding lets you struggle just enough to learn, without becoming frustrated.
Research on desirable difficulty shows a small amount of struggle during learning leads to dramatically better long-term retention.
04
Authentic content curation
All vocabulary comes from real PTE and IELTS practice materials and academic word lists — not made-up examples. You learn the words that actually appear on your exam.
The Academic Word List (AWL) and corpus-based frequency lists inform which words we include.
Why vocabulary practice works
Decades of cognitive science research show that deliberate vocabulary practice is one of the most effective ways to improve language proficiency. EngSandbox is designed around evidence-based learning principles so every exercise delivers maximum impact.
Spaced Repetition
200% better retention
Reviewing words at increasing intervals moves them from short-term to long-term memory. This is why EngSandbox schedules reviews automatically.
Ebbinghaus forgetting curve researchActive Recall
50% improvement in accuracy
Actively retrieving a word from memory — rather than passively re-reading — strengthens neural pathways. Every type-the-word drill forces active recall.
Karpicke & Roediger, 2008Multi-Modal Learning
75% better transfer
Combining reading, listening, and typing engages multiple memory systems. Hearing native pronunciation while seeing the word creates stronger encoding.
Paivio dual-coding theoryContextual Practice
3x more word families
Learning words with collocations, definitions, and example sentences builds richer mental connections than isolated word lists.
Nation, 2001 vocabulary acquisition researchSee what you will learn
Here is a preview of the kind of content you will encounter in EngSandbox. Grammar lessons come with clear explanations and visual diagrams. Idioms include illustrations, meanings, and real-world usage examples. Proofreading exercises train your eye to spot and fix grammar mistakes — just like the real exercises.
Live practice — no account needed
These are real proofreading exercises from EngSandbox. Click the incorrect word in each sentence to see how instant feedback, corrections, and explanations work — nothing is saved, so you can experiment freely.
Subject Pronouns & 'To Be'
In English, every sentence needs a subject and a verb. The most common verb is 'to be'. It describes who or what someone is, their age, or their feelings.
Quantifiers 1: Countable vs. Uncountable Nouns
Nouns in English are either countable or uncountable. Countable nouns are things you can count individually, like 'one apple' or 'two cars'. They have both singular and plural forms.
On the other hand
Used to introduce a contrasting point of view, fact, or argument that opposes the first one mentioned.
“The new software update will definitely streamline our weekly reporting process; on the other hand, it will require our team to undergo a mandatory two-day training session.”
Break the ice
To do or say something to relieve tension, ease awkwardness, or start a conversation, especially when meeting people for the first time.
“I was incredibly nervous on our first date, but she broke the ice right away by making a hilarious joke about how clumsy she is.”
Advanced Grammar for exam writing
A five-level course that takes IELTS and PTE writing from solid sentence-level grammar to the sophisticated structures examiners reward at band 6.5–8. Each level builds on the last — every chapter pairs explanations and model texts with hands-on exercises and a unit assessment.
Study tips that actually work
Simple, research-backed habits that accelerate vocabulary growth — and get the most from EngSandbox.
120 min total
Mon
New words · 20m
Tue
Review · 15m
Wed
Grammar · 15m
Thu
New words · 20m
Fri
Review · 15m
Sat
Mixed · 25m
Sun
Audio · 10m
Short, frequent sessions
Study 15–20 minutes daily rather than cramming once a week. Consistent exposure keeps words active in your memory.
Space your reviews
Revisit new words after one day, then three days, then a week. EngSandbox can schedule this for you.
Test yourself actively
Don't re-read word lists. Force your brain to retrieve the word — type-the-word drills do exactly this.
Listen and repeat aloud
Hearing pronunciation and speaking it yourself creates a stronger memory trace. Use text-to-speech on every word.
Learn collocations, not just definitions
Knowing that “make a decision” is correct (not “do a decision”) matters for exams and natural speech.
Set weekly targets
Aim to learn 15–25 new words per week and revisit 50 review words. Deep knowledge beats shallow familiarity.
Built for test takers — useful for everyone
Whether you are preparing for a specific exam or just want to strengthen your English, EngSandbox adapts to your level.
PTE Test Takers
Practise the vocabulary and listening skills you need for Pearson Test of English Academic.
IELTS Candidates
Build academic vocabulary and spelling accuracy for both General and Academic IELTS.
General Learners
Anyone looking to improve their English vocabulary, spelling, and pronunciation — at their own pace.
Walk into test day feeling ready, not rushed
Join thousands of quiet daily sessions — fifteen focused minutes, real exam formats, and audio that trains your ear as well as your eye.