We help ambi­tious behav­iour­al science stu­dents create and host online exper­i­ments easily

  •   Easy-to-use graph­i­cal inter­face — no coding necessary.
  •   Collect behav­iour­al data with val­i­dat­ed reac­tion times.
  •   Build for free. Pay for data collection.

Hit The Ground Running

Say goodbye to hours of frus­tra­tion getting your study to work, weeks of face-to-face testing and stress­ful all-nighters. Whether you’re study­ing for your under­grad, masters or PhD, Gorilla enables you to run studies online quickly and easily.

Create ques­tion­naires, build tasks and design exper­i­ments all within our clear, intu­itive, graph­i­cal inter­face. No coding required.

Build your tasks
and questionnaires 

Design your experiment

Con­fig­ure your recruitment


Down­load your data

Picture of Student Hannah Betts

Hannah Betts

PhD Student, Uni­ver­si­ty College London

“Gorilla is designed for psy­chol­o­gists, so it has all the rel­e­vant options. I’ve found it really easy to use and very flexible.”

Reach For The Stars

You’ve worked hard to get to where you are. Gorilla removes the stum­bling blocks and lets your sci­en­tif­ic skills shine through.


Con­fig­ure your experiment and deploy it to the world instant­ly. With access to a plan­et­ful of online par­tic­i­pants ready to take part, you can collect your data in a frac­tion of the time it would take in the lab.


Say goodbye to under­pow­ered studies. Gorilla enables you to recruit far larger par­tic­i­pant numbers, so you can be sure that you’re seeing real effects.


Stop being WEIRD. Need more diverse par­tic­i­pants? Or looking to study a spe­cif­ic demo­graph­ic? Use Goril­la’s seam­less inte­gra­tion with recruit­ment ser­vices such as Pro­lif­ic, MTurk and SONA to reach diverse or spe­cif­ic pop­u­la­tions and meet your recruit­ment goals.

Aimee Wilde

PhD Student, Uni­ver­si­ty of Middlesex

“As a Behav­iour­al Eco­nom­ics MSc student study­ing an inten­sive one year course along­side full-time work, Gorilla has been invalu­able. I have no idea how I would have setup my experiment without the plat­form and its amazing team! It’s really great to use what­ev­er level your coding skills are. If you know a little bit of css/html, you can use this in the main Task Editor to cus­tomise exist­ing tem­plates. If you’re more advanced, the Code Editor inter­face gives you great flex­i­bil­i­ty in using html/javascript etc. so you can really push your exper­i­men­tal design forward.”

Ace your research project with Gorilla

Image of a sample task

Copy classic psy­chol­o­gy tasks straight into your study

Gorilla has a data­base of classic tasks ready for you to try out and copy into your own studies! We have ver­sions of the Stroop task, memory tasks, flanker tasks, and a Big Five per­son­al­i­ty trait ques­tion­naire, among many others

Easily create complex exper­i­men­tal designs

When you create an experiment in Gorilla, you add build­ing blocks called nodes, which allow you to ran­domise and coun­ter­bal­ance your con­di­tions, branch your par­tic­i­pants, and set par­tic­i­pant quotas, among other tools!

An experiment tree in Gorilla
People working on a whiteboard

Col­lab­o­rate and share projects

Gorilla lets you share projects with other users, allow­ing seam­less col­lab­o­ra­tion between you and your class­mates — group projects just got so much easier!

Read our ‘How to write an under­grad­u­ate dis­ser­ta­tion in psy­chol­o­gy’ guide

We promise you greater effi­cien­cy, fewer headaches and data skills that will be valued in industry

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People jumping in celebration

Win tokens for your PhD research project

We run an annual com­pe­ti­tion for PhD stu­dents and early career researchers (Gorilla Grants) for tokens to run your own research project. Sign up for an account and reg­is­ter your inter­est to make sure you don’t miss the announcement

Explore Gorilla Academy, a content library for learners

Super­charge your learn­ing with our intro­duc­tions to Psy­chol­o­gy and Behavioral Science. You will find in-depth reviews of papers and how to repli­cate them, step-by-step guides showing you how to build a range of dif­fer­ent tasks, free down­load­able data for analy­sis and video lec­tures cov­er­ing basic and advanced aspects of data organ­i­sa­tion and analysis.

UCL Case Study
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Read about other stu­dents’ expe­ri­ences using Gorilla

Our Spot­lights page con­tains tes­ti­mo­ni­als from lots of Gorilla users

Alex Hendry

PhD Student, Kings College London

“Gorilla lets me take my exper­i­ments online quickly and effi­cient­ly. The clear and straight­for­ward inter­face allows me to map out the logic of my exper­i­men­tal designs, whilst its modular nature helps me to build and test com­po­nents as I go. Taking my research online will dra­mat­i­cal­ly increase my sample size, and help me to reach groups under-rep­re­sent­ed in my field.”

Light The Fuse

Gorilla is free to start using — you only pay to collect data from par­tic­i­pants. You can sign up and start build­ing your experiment today.

Goril­la’s pay per par­tic­i­pant model makes small studies very afford­able — to recruit 20 par­tic­i­pants costs less than a round of drinks.

Under­grad­u­ate Projects

Masters Dis­ser­ta­tion

PhD Thesis

Contact Us

To see how our tools work, get started with our onboard­ing videos.

Down­load our brochure for researchers or our brochure for teach­ers.

For team or depart­ment pricing infor­ma­tion, see our Team and Depart­ment pricing page.

For ques­tions about data secu­ri­ty, GDPR or ethics, read our due dili­gence guide.

For a list of task builder fea­tures, check out our task builder support guide.

Any other ques­tions or queries? Contact us!