About EngSandbox
Your PTE & IELTS practice companion - free, private, and always in your browser.
Boost your PTE & IELTS score with targeted practice - anytime, anywhere, on any device. EngSandbox helps you build vocabulary, improve spelling, and master academic English without creating an account or installing software.
Why Learners Choose EngSandbox
Zero friction - Start practising in 10 seconds. No sign-up, no forms, no waiting.
Works offline - Once loaded, practice on flights, commutes, or anywhere without WiFi.
Your data stays yours - Everything runs locally in your browser. We never see or store your practice data.
PTE & IELTS focused - Exercises designed specifically for the academic English skills these exams test.
Always free- No subscriptions, no paywalls, no credit card required. We're ad-supported so you don't have to pay.
How It Works
Everything runs directly in your browser - no backend servers, no AI API calls, no data collection. Your progress is stored locally using IndexedDB and SQLite WASM, so your data stays private and you can keep practising offline.
Our Mission
For many, PTE and IELTS aren't just exams - they're the gateway to studying abroad, career opportunities, or reuniting with loved ones. We know how much pressure rides on these scores, and we believe preparation should build skills that last beyond test day.
EngSandbox helps you develop real English proficiency - the kind that boosts your score and serves you in everyday conversations, academic writing, and professional settings. We're committed to keeping it free, transparent, and genuinely useful. Your success is the only metric that matters to us.