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.”

UCL Case Study

Ace Your Dissertation

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

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!

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

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

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.

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!