Autism Test
Thirty questions for adults, free and private
A free autism test for adults, online
A 30-question screen for autistic traits in adults, including traits that went unnoticed in childhood. You answer on a five-point scale and get a score with a breakdown across four areas. Scored in your browser, with no account and nothing sent to a server.
Start free testEducational screening only. This is not a medical diagnosis.
I find it hard to judge when it is my turn to speak in a group.
Aimed at late-recognised and masked presentations rather than a childhood behaviour checklist.
No account required. Scoring runs in your browser and your answers never leave the device.
Thirty statements on a five-point scale, with a trait breakdown across four areas at the end.
The screener above is a free autism test for adults online — thirty questions, about six minutes, no account and no email. It asks you to answer for your whole life rather than only for this week, because autism is developmental: a trait that first appeared at thirty means something different from one that was there at six.
It will not diagnose you. Nothing on the internet can. What it can do is organise what you already notice about yourself into a shape you can take to a doctor, and point you at a longer test if the short one lands close to home.
Who this test is for
Adults who reached adulthood without anyone raising autism. That is a far larger group than most people realise, and it tends to include:
- People diagnosed with something else first. Anxiety, depression, social anxiety, bipolar disorder and personality disorders are all common prior labels for autistic adults, because they describe the exhaustion and the consequences rather than the cause.
- Women and people assigned female at birth. The diagnostic picture was built largely on boys, and the presentations most common in girls were not what clinicians were trained to look for.
- Adults who recognised themselves in a diagnosed child. Autism runs strongly in families, and a child’s assessment is one of the most common routes to an adult realising it about themselves.
- People who always felt the effort. Not that socialising is impossible, but that it costs something other people do not appear to be paying.
What the four areas mean
This online autism test for adults scores four areas rather than producing one undifferentiated number, because the pattern matters more than the total.
| Area | What it covers |
|---|---|
| Social Relatedness | Reading people, conversation, eye contact, friendship, and the effort behind all of it |
| Circumscribed Interests | Depth of interest, routine, sameness, attention to detail |
| Language | Literal interpretation, formality, difficulty with open-ended questions |
| Sensory-Motor | Sound, light, touch, texture, smell, coordination, body awareness |
Two people can reach the same score through completely different routes. A high total driven almost entirely by sensory items describes something quite different from the same total spread evenly across all four. The results page shows you both.
What adult autism actually looks like
The popular picture still owes a lot to a handful of films, and it describes a narrow slice of autistic people — mostly children, mostly boys, mostly with obvious support needs. Adults who have been managing undiagnosed for decades usually look like none of it.
The effort is hidden, not absent
The most consistent thread among late-diagnosed adults is not an inability to socialise. It is that socialising is a consciously executed task. Rehearsing openers. Monitoring your own face. Running a background process that checks whether you are talking too much. Most people do not do this, and most autistic adults assume everyone does, right up until they find out otherwise.
The recovery time is the tell
An evening out that other people describe as energising takes a day to come back from. Not because it went badly — often it went well — but because performing fluency for four hours costs something. This is the single most common thing adults report once they have language for it.
Sensory experience is treated as personality
The hum of a fridge, a particular fabric, overhead strip lighting, someone chewing. Most adults who have lived with this their whole lives have filed it under being fussy rather than under sensory processing, because nobody ever offered them the second category.
Routine is not rigidity
A plan changing at short notice can derail a whole day, and from the outside this looks like inflexibility. From the inside it is usually that the plan was holding a great deal else in place.
Masking, and why a low score does not settle it
Masking is the conscious and unconscious work of appearing non-autistic: scripting conversations, suppressing stimming, forcing eye contact, copying other people’s mannerisms. It is effective, exhausting, and it quietly breaks self-report questionnaires.
If you have masked for thirty years, you may answer these questions describing the version of yourself you constructed rather than the effort underneath it. That produces a lower score than the reality. It is the reason a result below any threshold rules nothing out, and the reason a separate instrument — the CAT-Q — exists specifically to measure camouflaging rather than autism.
A practical test: if the questions felt relevant even where you answered “never true”, that is worth more attention than the number.
Which autism test should you take?
Several adult screening instruments exist and they are not interchangeable. This is how they compare.
The 80-question RAADS-R style test
The most detailed option here. Eighty questions across the same four areas, scored 0 to 240, which is the scale used throughout the research literature. Takes about fifteen minutes. If the thirty-question screener above suggested anything, this is the one to do next — and it comes with a full explanation of what the score means and why the widely-quoted threshold of 65 is disputed.
AQ-50 — the Autism-Spectrum Quotient
Fifty statements, scored 0 to 50, published in 2001 and the most widely used adult autism questionnaire in the world. Enormous evidence base, quick to complete. Its weaknesses are that it asks about the present rather than your whole life, and that it is known to underperform for women and for people who mask heavily.
AQ-10 — the ten-item short form
Built as a triage tool and used by the NHS as a first filter before referral. Two minutes. It is deliberately crude: ten items cannot produce a profile, and a single answer moves the score substantially. Useful as a first step, never as a result in itself.
CAT-Q — the Camouflaging Autistic Traits Questionnaire
Twenty-five items measuring how much effort you put into appearing non-autistic. It does not screen for autism and a high score is not evidence of it. What it does is explain a low score on everything else, which makes it unusually valuable for women and late-diagnosed adults.
ADOS-2 and ADI-R — the clinical instruments
Not questionnaires, and not available online anywhere. The ADOS-2 is a structured observational assessment where a trained clinician presents social scenarios and codes your behaviour in real time. The ADI-R is a developmental interview, usually with a parent. Together they are the basis of a formal diagnosis. Any website offering you an “online ADOS test” is offering you something that does not exist.
M-CHAT-R/F — for toddlers, not adults
A parent-report screener for children roughly 16 to 30 months, with a structured follow-up interview. Strong evidence base in that age range and no use whatsoever for an adult assessing themselves. Included here because people find it while searching and assume it is general-purpose.
How accurate are online autism tests?
Worth answering honestly, because the usual answer on pages like this is evasive.
A good screening questionnaire separates two groups reasonably well when those groups are already quite different — diagnosed autistic adults versus the general population, for instance. That is how most of these instruments were validated, and it is why their published accuracy figures look impressive.
Real users are a harder problem. People who take a free autism test for adults online are, almost by definition, uncertain. Many of them have anxiety, depression, ADHD, past trauma, or burnout, and every one of those raises scores on autism questionnaires, because the underlying experiences genuinely overlap. Finding social situations draining, dreading phone calls, needing routine, being sensitive to noise — none of those belong exclusively to autism.
A questionnaire cannot ask you why you recognised an item. It can only count that you did. That is the ceiling on every self-report screener, including this one, and it is why a score is a prompt rather than a finding.
Signs of autism in adults
No one shows all of these, and showing several does not settle anything. They are the experiences that come up most consistently among adults who were diagnosed late.
Social and communication
- Conversation feels like a skill you execute rather than something that happens
- You rehearse openers, exits, and phone calls
- You realise hours or days later what someone actually meant
- Eye contact is something you remember to do, and it interferes with thinking
- You have been told you are blunt, cold or intense when you felt neutral
- Group conversation is substantially harder than one-to-one
Routine and interests
- A change of plan at short notice costs you the rest of the day
- You have interests you pursue well past any practical need
- You notice detail other people walk straight past
- You eat, travel or work in the same pattern and feel the difference when you cannot
Sensory
- Specific sounds are not merely annoying but intolerable
- Certain fabrics or food textures are impossible regardless of taste
- Overhead lighting, busy shops or open-plan offices are physically tiring
- You notice smells and background hums nobody else registers
- You rock, pace, tap or fidget when concentrating or under stress
Energy and recovery
- You need disproportionate recovery time after ordinary social contact
- You have periods where speaking, replying or leaving the house becomes very hard
- You have been treated for anxiety or depression without it fully explaining things
What happens at an adult autism assessment
Knowing the shape of it removes a lot of the dread.
Expect several hours, often split across appointments. A clinician will take a developmental history going back to early childhood, which is why school reports and the recollections of anyone who knew you then are so useful. There will be structured interviews, and frequently a request to speak with a parent or someone who knew you as a child — though services increasingly recognise that not everyone has that available and work around it.
Screening questionnaires may form part of the intake paperwork. They will not be the basis of the decision.
The outcome is not always a yes or a no. Some assessments conclude with traits present but below threshold, or with a different explanation that fits better. Both are useful results, even when they are not the ones you went in expecting.
What to do with your result
If you want a formal assessment
The usual route is a GP or primary care doctor who can refer you to an adult autism service. Waiting lists in many countries are long, and private assessment is expensive, so it is worth starting the conversation early even if you are undecided.
What helps is not a test score. It is specifics. School reports. Things relatives have said over the years. Concrete examples of situations you find difficult and exactly which part is difficult. “I struggle with work social events” carries far less weight than “I can manage a one-to-one meeting, but by three o’clock in an open-plan office I cannot think, and I take my lunch in the car.”
If you are not seeking a diagnosis
A legitimate and common position. Many adults find that recognising the pattern is itself the useful part — it changes how they arrange work, rest and relationships without any formal label. Most of the accommodations that help autistic people are available to anyone who asks for them.
Frequently asked questions
Is this autism test for adults really free?
Yes. No account, no email, no payment, and no limit on attempts. Nothing you enter leaves your browser.
How long does it take?
About six minutes for the thirty-question screener, about fifteen for the full 80-question test.
Can an online test diagnose autism?
No. Diagnosis requires a clinician, a developmental history, and usually several hours. Screening questionnaires can form part of an intake, but no competent clinician diagnoses from one.
I scored low but still think I might be autistic. What now?
That is common, particularly among people who mask. Try the full 80-question test, which covers more ground, and read about the CAT-Q above. If the questions felt relevant even where you answered “never true”, take that seriously.
Is there a difference between an autism test and an Asperger’s test?
Not any more. Asperger’s syndrome stopped being a separate diagnosis when DSM-5 folded it into autism spectrum disorder in 2013, and ICD-11 followed. Adult screeners cover what used to be called Asperger’s.
Should I tell my doctor my score?
You can, but lead with examples rather than the number. A clinician will weigh a concrete history far more heavily than a result from a website, and they are right to.
Does this test work on a phone?
Yes. It runs in any mobile browser, saves your answers as you go, and needs no app.
This page is for information only and is not medical advice. The tests on this site use original questions written for this site, follow published screening formats, and are not affiliated with the authors or publishers of any named instrument. They cannot diagnose autism or any other condition.