Best IELTS Mock Test Websites: Full Simulations Compared (2026)

A mock test answers one question - where am I today? - and candidates routinely over-sit them, collecting scores that never change because nothing happens between mocks.

So this comparison ranks eight mock test websites on realism and on what happens after you finish: does the platform explain your misses and measure your movement, or hand you a number and wave goodbye? Criteria as ever: feedback depth, measurement, free access, price.

One definition up front, since the field blurs it: a mock test is a measurement taken under real conditions. Material realism, honest timing and a proper review are what make the measurement true - and each site below is strong on a different one of the three.

Short answer: IELTSbiz is our top pick in 2026 because of what happens after the test: full timed simulation feeds trap-level feedback on every miss and per-question-type band tracking, turning a mock score into a study plan. For an official examiner-marked benchmark, pair it with IELTS Progress Check.

The field at a glance, as of 2026.

How we ranked these mock test websites

A full simulation - a complete test sat under real timing in one sitting - is the only reliable way to rehearse exam stamina, so realism of format and timing came first.

But realism alone does not improve a band, so feedback depth and measurement carried equal weight, with free access and price completing the four criteria.

The pattern across the field is stark: the most authentic sources give the thinnest feedback, and the deepest feedback comes from independent tools. That is why the right answer below is a pairing, not a single site.

On automated marking, we apply the same evidence bar throughout this series: IELTSbiz's study of 1,200 essays found AI band scores matched human examiners within ±0.5 bands in 94.2% of cases.

Price came last, with one caveat specific to mocks: a full four-skill, examiner-marked test is the only product on this list with no free substitute, so its price buys something unique rather than merely convenient.

1. IELTSbiz - Best for simulation plus a real review loop

Full disclosure: IELTSbiz is our own platform - weigh the ranking accordingly, and test the free tier yourself before taking our word. We rank it first because it is built around the half of mock testing most sites ignore: the review.

The simulation mode runs timed, Cambridge-style test conditions, and every finished session feeds the same engine as daily practice: trap-level feedback that names the distractor behind each miss across all 11 Reading question types, and per-question-type band tracking that shows which formats are dragging your score.

A mock stops being a number and becomes a to-do list.

Because passages are AI-generated on demand, you never run out of fresh material - the recurring problem with fixed official banks. The free account adds the Writing Checker with its 4-criteria band estimate, the daily Word Coach, and the band score calculator for converting section scores into an overall.

The fair limits: it is Reading-first and independent, so for a full four-skill, examiner-marked benchmark you should still buy one official Progress Check near test day. Free to start, no card; Pro is $6.99 a month or $29 lifetime. Run one practice session first and see whether the feedback changes how you read.

The habit to build is mock-then-drill: sit the simulation, open the per-type breakdown, and spend the next fortnight on the two worst formats before measuring again. Candidates who follow that loop typically see the weak formats converge toward their strong ones within a few cycles.

Because the simulation and the daily drilling share one account, the mock is never a separate ritual: the same per-type history that explains a practice session explains the mock, and the trend line runs unbroken from your first session to your final rehearsal.

2. IELTS Progress Check - Best official examiner-marked mock

IELTS Progress Check is the official online practice test, marked by trained IELTS markers, with an indicative band score for all four skills including Writing and Speaking. Nothing else on this list can say that, which makes it the most trustworthy single predictor of your real result that money can buy.

The trade-offs: each test costs money, results take days rather than seconds, and feedback is an indicative score rather than a detailed diagnosis - it tells you where you are, not what to fix.

Best for: one purchase mid-preparation and one two or three weeks before test day, as calibration for everything your daily tools are telling you.

Timing the purchases matters. A Progress Check too early measures a level you already know is provisional; too late leaves no time to act on the result.

Mid-preparation and three weeks out are the two high-information moments. Save the report each time - the official feedback comments, brief as they are, come from trained markers and deserve a careful read.

3. IELTS Ready (British Council) - Best official prep hub with mock options

IELTS Ready is the British Council's preparation hub, with a free member tier of practice materials and a premium tier - often included free when you book your test with the British Council - adding fuller mock tests and study support. Official provenance means the material tracks the real exam closely.

The cautions: access rules vary by booking route and country, content is a fixed set, and feedback is largely answer-key level. Best for: candidates already booked with the British Council, who should absolutely claim the premium access their booking includes before paying anyone else.

Check what your booking includes before your first study week, not after: premium access granted at booking is time-limited in some regions, and candidates routinely discover it the week before the test.

The free member tier is worth a look even if you booked elsewhere - official familiarisation material costs nothing and settles format questions early.

4. ieltsonlinetests - Best free full-length papers at volume

For unlimited free rehearsal of the full test experience, ieltsonlinetests remains the volume leader: a very large library of complete, timed Listening and Reading papers, sat in-browser with a community around the results. Stamina and pacing across a full paper is exactly what it delivers, at zero cost.

The costs: heavy ads, variable question quality at the library's edges, and answer-key-only feedback - the review loop is entirely your job. Best for: the free stamina track of your plan, with misses analysed elsewhere - our ieltsonlinetests alternative page shows the split.

Curate rather than binge: the library is larger than anyone needs, and the newest, most-reviewed tests are generally the closest to real difficulty.

One paper a week under honest timing, reviewed properly, will do more than three papers skimmed - and your review notes, not your scores, are the asset the library is really there to generate.

5. Road to IELTS - Best authentic official practice tests

Road to IELTS, the British Council's own course, includes practice tests whose format, difficulty and tone carry official authority. As a calibration source - checking that your practice scores mean what you think they mean - it is excellent, and a limited free version is commonly available to British Council candidates.

The limits: finite content you can exhaust, answer-key feedback, no tracking. Best for: an authenticity checkpoint every few weeks rather than a daily engine - our Road to IELTS alternative page covers what to run alongside it.

Because its tests carry official authority, use them at the moments when calibration matters most: before you set your target band, and whenever an independent tool gives you an estimate that looks surprisingly good.

If the two sources agree, trust your plan; if they disagree, believe the official material and adjust - that cross-checking is the cheapest insurance in test preparation.

6. Cambridge official practice tests - Best real retired papers

The Cambridge IELTS volumes are real retired exam papers, which makes them the single most authentic mock material in existence: a score on a Cambridge paper is the closest thing to a score on the real test. Available as books and via Cambridge's online platform.

The limits: they cost money, the supply is strictly finite - each paper gives you one honest first sitting - and feedback is a bare key. Best for: two or three carefully spaced benchmark sittings across your preparation, treated as precious rather than burned in a binge week.

Buy recent volumes first - the newest books reflect the current test most closely - and resist the archive-binge instinct; three honestly-sat papers tell you more than ten rushed ones.

The books also make excellent review material after each sitting: every wrong answer sits in authentic text, so tracing it back teaches real-exam paraphrase like nothing else.

7. TestGlider - Best AI-scored computer-based mocks

TestGlider offers full mock tests in a polished interface that closely mirrors computer-based IELTS, with AI scoring and per-question explanations delivered in minutes - including estimates on Writing and Speaking, which free libraries cannot mark at all. Free trial tests let you sample before subscribing.

The cautions: continued access is paid, and AI section scores are estimates rather than examiner marks. Best for: computer-based candidates who want frequent scored full mocks with faster, richer results than an answer key.

Its Writing and Speaking estimates are the differentiator, so lean on them: free Reading and Listening papers are everywhere, but a scored four-skill mock without booking a human marker is genuinely hard to find.

Use the trial tests to compare its estimates against any official score you have - if they track within half a band, the subscription becomes a useful weekly barometer.

8. One IELTS - Best free computer-based-style mocks

One IELTS provides free mock tests in an interface styled on the computer-based exam, letting candidates rehearse on-screen navigation, highlighting and typing under timing without paying. For computer-based test-takers on a budget, that format familiarity is quietly valuable.

The limits: a smaller library than the giants, answer-key-level feedback and no progress tracking. Best for: free format rehearsal alongside a measured daily tool - our One IELTS alternative page has the fuller comparison.

Slot it into the final month if your test is computer-based: two or three sessions rehearsing the on-screen mechanics - highlighting, review flags, the answer boxes - convert a mild test-day friction into a non-event.

Earlier in preparation, put the hours into level rather than format; format familiarity is quick to build and quick to fade.

How do you simulate real IELTS test conditions at home?

The written test is roughly two hours forty-five minutes of continuous work across Listening, Reading and Writing, and most candidates never once rehearse that span before sitting it. Simulate it at least twice.

The rules that matter: one sitting, no phone in the room, real answer transfer for paper candidates, and the sections in test order. Start at the same time of day as your booking if you can.

Then score it, convert it, and review it the following day rather than the same evening - a rested review finds patterns a tired one misses. Two honest home simulations are worth more than five comfortable ones, so guard the conditions as carefully as the material.

What should you review after an IELTS mock test?

Three lists, in order. First, the misses: for each wrong answer, name the cause - vocabulary, distractor, timing, or attention - because each cause has a different fix.

Second, the lucky hits: answers you guessed are misses in disguise, and honest review flags them before the real test does.

Third, the clock: note where the time went. Most Reading overruns hide in one passage, and most Listening losses cluster in one part - the review that finds the cluster is worth more than the score itself.

Write the review down, every time. A miss understood but unrecorded is usually repeated within a fortnight, while a one-line note - question type, trap, fix - turns the same miss into a permanent upgrade.

Computer-based or paper: which mock format should you practise?

The one you booked - and if you have not booked yet, try both once and choose. Computer-based IELTS shows Listening answers on screen as you go and offers typing for Writing; paper rewards fast handwriting and answer-sheet discipline.

Your mocks should match your booking as test day approaches: in the final month, every full simulation should be in your real format, in one sitting, at the real time of day if possible.

Earlier than that, format matters less than level - a good paper sat in either mode still measures the skills that decide the band.

Listening differs most between the modes: on computer you type answers as you listen, while on paper you get ten extra minutes to transfer them - which changes your note-taking strategy more than candidates expect. Rehearse the version you booked until the mechanics are automatic.

How often should you take a full IELTS mock test?

Once every one to two weeks is the productive rhythm. A full mock is a measurement, and measuring daily changes nothing - the improvement happens in the days between, when you drill the weaknesses the last mock exposed.

A sound structure: a diagnostic mock at the start, targeted drilling as the default day-to-day work, a fortnightly mock to confirm movement, and one official examiner-marked Progress Check near the end as external calibration. Score each mock with the band score calculator and log it - the trend line matters more than any single sitting.

Resist the pre-test binge above all. A mock every day in the final week builds fatigue, not marks - taper instead: one last full simulation about five days out, then light drilling and review until the real thing.

However you stack the tools, remember the ratio that decides outcomes: for every full mock, plan roughly ten targeted drilling sessions. Candidates who invert that ratio measure themselves constantly and improve slowly - the mock is the thermometer, not the medicine.

Mocks measure; drilling improves. For the drilling side, see the best Reading practice websites, the best Listening practice websites, the best Writing practice websites and the best Speaking practice websites and apps, or start from the full best IELTS websites in 2026 roundup.

The best paid IELTS prep websites guide covers which upgrades earn their price.