Free autism trait tests for adults, compared
Free adult autistic trait questionnaires compared on cost, email requirements, item count, which instrument is used, attribution and what each says about your answers. Checked August 2026.
Free adult autism questionnaires differ far more than masking ones do, because no two of these are running the same instrument. The four below use the RAADS-R, the Autism-Spectrum Quotient, a repetitive-behaviours questionnaire and an original trait tool, with item counts from 30 to 80. A score from one tells you nothing about what you would score on another. Everything below was read off each live page on the date shown.
Every entry below was read off the named page on 3 August 2026. Sites change, so each row links its source. Where a column says “not stated”, it means that page did not say, not that the answer is no.
Side by side
| Tool | Cost | Email or account | Items | Instrument and attribution | Stated cutoff | What it says about your answers | Sold on the page |
|---|---|---|---|---|---|---|---|
| NeuroTypeThis siteSource, checked 3 August 2026 | Free, full result shown | No account, no email | 30 | Original NeuroType wording across six areas. Explicitly not the RAADS-R | None. Scored per area, with no combined total | States that individual answers stay in the browser and are not sent to a server | Paid reports exist but are not currently on sale |
| Embrace AutismSource, checked 3 August 2026 | Free. States getting your score is free and anonymous | Not stated on the page | 80 | RAADS-R, named in full and attributed to Ritvo et al. | States below 65 makes autism less likely, and 65 to 105 suggests meaningful autistic traits | Not stated on the page | States a PDF of the result can be downloaded |
| IDRlabsSource, checked 3 August 2026 | Free. States it is delivered free of charge | Not stated on the page | 50 | Adult Repetitive Behaviours Questionnaire-2, with named authors and full references | Not stated on the page | Not stated on the page | Not stated on the page |
| Psychology ToolsSource, checked 3 August 2026 | Not stated on the page | Not stated on the page | 50 | Autism-Spectrum Quotient, credited to Simon Baron-Cohen and the Cambridge Autism Research Centre, citing their 2001 publication | Not stated on the page | Not stated on the page | Not stated on the page |
How to choose
Check which instrument you are actually taking
This matters more than anything else in the table. A RAADS-R score of 70 and an AQ score of 70 have nothing to do with each other; they are different questionnaires on different scales measuring different things. A page that does not name its instrument cannot tell you what your number means, and a number you cannot situate is not much use to a clinician either.
Notice how few of them state a cutoff
Only one of the four states thresholds. That is not a flaw in the others. Cutoffs are properties of a validated instrument and its research base, and reproducing one responsibly means engaging with that literature rather than picking a round number.
Expect trait language, not answers
Every questionnaire here describes traits that are distributed across the whole population. Recognising some of them in yourself is not the same as meeting diagnostic criteria, which depends on developmental history, daily impact and what else could explain the pattern.
If you want the RAADS-R specifically
NeuroType does not publish it. Its licence was priced out of reach, so an original tool was written instead. If a RAADS-R score is what you need, use a site that hosts it and check that it credits the instrument properly.
Why there is no winner on this page
This page does not rank these tools and does not name a best one. Several of them administer the same questionnaire, so any ranking would be about presentation rather than about the instrument. More importantly, no self-report questionnaire can establish whether a condition is present, so ranking them by accuracy would imply a precision that none of them has.
NeuroType is one of the entries in the table and is described on the same terms as everything else, including where it offers less. It publishes no cutoff and no ASRS score, and if either is what you need then one of the other sites is the better choice.
Related pages
Frequently asked questions
- Can a free online test tell me if I am autistic?
- No, and every questionnaire on this page says so in some form. A formal assessment considers developmental history, the context you live in, daily impact and other explanations such as sleep, stress, trauma or health. That work needs a qualified professional.
- Why do these tests give such different results?
- Because they are different questionnaires measuring different things. A repetitive-behaviours measure and a camouflaging measure are not interchangeable, and neither is a general autistic-traits screener. Scores are not comparable across instruments.
- Which is best?
- That depends on what you want to look at, and this page deliberately does not rank them. If camouflaging is what you have been noticing, a CAT-Q page is the right shape. If you want a broad trait description in plain language, an originally worded tool may suit better.
Safety note
Reflection tools can surface patterns; they can't confirm or rule out a condition. Take any concerns about your mental health or neurodevelopment to a qualified clinician.