You don't need another PDF of practice questions. You need a screen that feels like test day and feedback that tells you where the marks actually went.
The state of online IELTS prep
IELTS prep has quietly moved from paper workbooks to browser tabs. Candidates now expect full-length simulations, instant scoring, and analytics that explain why a band slipped. The market splits into three camps: giant question libraries, exam-day simulators, and course-led platforms that bundle mock tests with instruction. Most platforms lead with a free test to capture your email, then upsell marking, coaching, or premium question banks. The real differentiator is no longer volume of questions. It's fidelity to the computer-delivered format and the quality of feedback after you submit. If your score has plateaued at 6.5, the platform that shows you which question types are costing you marks is worth more than one with ten thousand extra questions.
How we compared these platforms
We judged every platform on the same factors. First, exam fidelity: does the interface behave like computer-delivered IELTS, with timers, split screens, and section flow? Second, feedback depth: do you get a score, or a diagnosis of question types and weaknesses? Third, coverage: are all four skills included, and are both Academic and General Training supported? Fourth, pricing clarity: what is free, what needs a card, and what sits behind a paywall? Fifth, practice extras such as drills, score calculators, and study plans. BandIELTS stood out for building its whole product around the exam screen and question-type diagnostics. IELTS Online Tests impressed with sheer library size and its British Council and IDP partner history. OneIELTS drew attention for combining mock tests with live speaking and private coaching. BestMyTest differentiated with a study plan generated from your results. Magoosh IELTS was notable for a predictive score report and a clean, guided test flow.
Here's the short version before the detail. Each platform below suits a different kind of candidate, so match the tool to your gap rather than chasing the biggest question count.
| Provider | Best For |
|---|---|
| IELTS Online Tests | Candidates who want the largest possible question library |
| BandIELTS: Free IELTS Mock Tests on a Real Exam Screen | Candidates chasing a half band who need question-type diagnostics |
| OneIELTS | Learners who want mock tests plus live speaking and coaching |
| BestMyTest | Self-studiers who want a results-driven study plan |
| Magoosh IELTS | A quick, honest baseline score with a clear breakdown |
The five platforms in detail
#1 IELTS Online Tests
A screenshot of the IELTS Online Tests website.
This is the volume play. The platform bills itself as a leading online IELTS preparation and training hub, and the numbers back it up with over 100 million test attempts reported on its homepage. You get a deep exam library split by Listening, Reading, Writing, and Speaking, plus test collections and tips sections for each skill. It also carries AI examiner evaluation for Writing and Speaking, along with examiner-marked services if you want a human second opinion. The trade-off is density: the navigation is busy, and you'll need to be disciplined about which tests you actually sit. For raw practice material across both Academic and General Training, few platforms come close.
#2 BandIELTS: Free IELTS Mock Tests on a Real Exam Screen
A screenshot of the BandIELTS website.
BandIELTS is built around one idea: test day shouldn't be the first time you see the screen. You sit full Academic and General Training mock tests on an interface designed to work like computer-delivered IELTS, complete with section timers and the split reading layout. Mock Tests 1 to 5 are free with no card required, which lowers the barrier to starting. The differentiator is the feedback layer. AI marking covers your answers, and results show exactly which question types are costing you marks, so you can move from a mock into Focus Drills on your weak spots. There's also a Score Lab and a Paraphrase tool for the writing and vocabulary work that quietly decides half bands. If your score is stuck and you can't explain why, this is the platform built to answer that question.
#3 OneIELTS
A screenshot of the OneIELTS website.
OneIELTS, built by Acadion, positions itself as test prep with a human layer on top. You get full mock tests and section tests across Listening, Reading, Writing, and Speaking, plus self-practice sets and a results and history dashboard. What sets it apart is the service menu around the tests: live speaking tests with an expert, private coaching, courses, and an AI tutor. There are also practical tools like a writing task checker, an IELTS score calculator, and grammar and vocabulary resources. The platform is transparent about being independent and not affiliated with the official IELTS bodies, which is worth knowing. It suits you if you want mocks plus access to a real person when speaking is the section holding you back.
#4 BestMyTest
A screenshot of the BestMyTest website.
BestMyTest runs a full 2.5-hour IELTS exam simulation for both Academic and General Training, and it frames the experience around what happens after you finish. You take the test, then get a study plan built from your results, which turns a mock into a to-do list. Section-level practice is available separately if you'd rather drill Listening, Reading, Writing, or Speaking on its own. The site also carries guides and lessons for each section, so you can move from a weak result straight into instruction. Access sits behind a free trial rather than a permanently free tier, so factor that into your budget. It's a strong fit if you like structure and want the platform to tell you what to study next.
#5 Magoosh IELTS
A screenshot of the Magoosh IELTS website.
Magoosh IELTS keeps things simple: one free full-length practice test that simulates test day, followed by a score report. The Academic test runs seven sections across roughly 2 hours and 55 minutes, and you can also take individual section tests for Reading, Listening, Speaking, and Writing. The report gives you a predictive score per section plus a total, along with a breakdown of strengths and weaknesses by subject. That breakdown is the useful part, because it tells you where further study is worth the effort. The free offer is narrower than some rivals, but the guided flow and clean reporting make it a low-friction first stop. It suits you if you want a quick, honest read on where you stand before committing to a prep plan.
How to pick the right platform for your gap
Start with your last score report, not with a platform's homepage. If you don't have a recent score, take one free full mock first and treat it as a diagnostic. If your problem is unfamiliarity with the computer-delivered format, prioritise exam fidelity: timers, split screens, and section flow that match test day. If your problem is a stubborn band, prioritise feedback depth: you want question-type breakdowns, not just a number. If Speaking is the weak section, look for platforms that offer live examiner sessions or AI speaking evaluation. If Writing is the issue, check whether marking includes task response and coherence feedback, not just grammar. Then check the pricing model honestly. A free tier with no card is ideal for testing the waters, while a trial-based model makes sense if you're ready to commit to a study plan. Finally, check Academic versus General Training coverage before you sign up, because not every library serves both equally.
Build a weekly mock-and-review loop
The candidates who move fastest treat mock tests as a loop, not an event. Sit one full mock at the start of the week under real timing conditions, ideally on a platform that mirrors the computer-delivered screen. When results land, export or note the question types that cost you marks, then spend two or three sessions on targeted drills for those types only. Midweek, do a single-section test on your weakest skill and compare the error pattern to Monday's. On the weekend, review your Writing and Speaking output against band descriptors, or run it through AI marking for a second read. Log each score in a simple spreadsheet with the date, section, and top two error types. After four weeks, the pattern in that log tells you whether to change platform, change study focus, or book the real test.
The bottom line
There's no single platform that fixes every score. IELTS Online Tests gives you the deepest library if volume is what you need. BandIELTS is the one to try if you want the exam screen and a diagnosis of which question types are costing you marks, and its five free mocks make that an easy experiment. OneIELTS adds a human layer for speaking and coaching. BestMyTest turns results into a study plan, and Magoosh IELTS gives you a fast, honest baseline. Pick the tool that matches your specific gap, sit one mock this week, and let the feedback decide what you do next.