If you have routines or experiments that are likely to be useful to others, please create a post in this thread, editing your post to add new demos so there is one post per creator. Ideally set your demos so they can be tested without consuming a credit (if you don’t have a site license) by adding a…

Countdown | code | The “Words Round” from Channel 4’s Countdown, including a word checker at the end. (Local only, for now)

My experiments serve as JavaScript tutorials and demos on how to extend PsychoJS with extra features JavaScript Debugging Tutorials tutorial_js_syntax_error Experiment is stuck on “initialising the experiment…” code | try it tutorial_js_semantic_error PsychoJS shows a dialog with an error message.…

I’ve decided that this thread is a good place to keep links to my Pavlovia resources as well as my demos. <a name="p-71317-psychopy-primer-slideshttpsdocsgooglecompresentationde2pacx-1vt76ddse_kf0zsgj98rsik5akrg12nicdhtw46bah_-bj_zfzdnj_81nqz-ah2a2uh1jxplqfkpxfskpubstartfalseloopfalsedelayms10000slideidp-1" class="anchor" href="#p-71317-psychopy-primer-slideshttpsdocsgooglecompresentationde2pacx-1vt76ddse_kf0zsgj98rsik5akrg12nicdhtw46bah_-bj_zfzdnj_81nqz-ah2a2uh1jxplqfkpxfskpubstartfalseloopfalsedelayms10000slideidp-1" aria-label="Heading link"> PsychoPy Primer slides Introductory Google slides using PsychoPy version 1.90.3 <a name="p-71317-psychopy-python-to-javascript-crib-sheet-2021httpsdocsgooglecomdocumentd183xmwdgsbnjzhmgf3ywpiev9bx8y7focm3qkkmooxfqedituspsharing-2020httpsdocsgooglecomdocumentd13jp0qaqqeflysjezs0fdinvgadzbxjgqne4vnkbbnhqedituspsharing-discussion-threadhttpsdiscoursepsychopyorgtpsychopy-python-to-javascript-crib-sheet14601-2" class="anchor" href="#p-71317-psychopy-python-to-javascript-crib-sheet-2021httpsdocsgooglecomdocumentd183xmwdgsbnjzhmgf3ywpiev9bx8y7focm3qkkmooxfqedituspsharing-2020httpsdocsgooglecomdocumentd13jp0qaqqeflysjezs0fdinvgadzbxjgqne4vnkbbnhqedituspsharing-discussion-threadhttpsdiscoursepsychopyorgtpsychopy-python-to-javascript-crib-sheet14601-2" aria-label="Heading link"> PsychoPy Python to JavaScript Crib Sheet 2021 | 2020 | discussion thread Extensive tips and notes on how to make…

<a name="p-72305-using-slider-position-to-change-opacity-of-image-codehttpsgitlabpavloviaorgkizilirmakslider-opacity-lightbulb-demo-try-ithttpspavloviaorgrunkizilirmakslider-opacity-lightbulb-demo-discussion-threadhttpsdiscoursepsychopyorgtchange-opacity-of-image-continuously-with-slider-position23135-1" class="anchor" href="#p-72305-using-slider-position-to-change-opacity-of-image-codehttpsgitlabpavloviaorgkizilirmakslider-opacity-lightbulb-demo-try-ithttpspavloviaorgrunkizilirmakslider-opacity-lightbulb-demo-discussion-threadhttpsdiscoursepsychopyorgtchange-opacity-of-image-continuously-with-slider-position23135-1" aria-label="Heading link"> Using Slider Position to Change Opacity of Image code | try it | discussion thread Changes the opacity of an image depending on current slider position: a light bulb lighting up depending on Aha! rating. In the demo, this effect is achieved by making an underlying version of the same image with a d…

Getting Typed Responses Locally or Online (Pavlovia) video link | discussion thread Video demonstration and code (in video link) for getting typed responses from participants. Works locally and online.

Some tools for auditory scientists: Headphone check test code | try it | paper an online headphone check test using dichotic pitch stimuli to ensure that your participants use heaphones rather than speakers. Sound volume setting procedure code | try it | paper A sound level meter helps you and y…

Simple “Video Player”-Controls Implementation for MovieStim (Online and Offline) Utilizing the Likert-Scale-Component to mimic a video progress-bar and polygons to match “Play”- and “Stop”-Buttons. Try it | Code | Discussion Upload Local Images to a Local Blob and use in PsychoJS Experiment (Onli…

PsychoPy Merger try it | discussion thread An R-based online applet to easily merge mutiple .psyexp files into a single one. <a name="p-76176-pavloviaswitch-try-ithttpsadjusshinyappsiopavloviaswitch-githubhttpsgithubcomadrianjusepeitispavloviaswitch-discussion-threadhttpsdiscoursepsychopyorgtpavloviaswitch-determinisitic-counterbalancing-for-pavlovia-experiments25055-2" class="anchor" href="#p-76176-pavloviaswitch-try-ithttpsadjusshinyappsiopavloviaswitch-githubhttpsgithubcomadrianjusepeitispavloviaswitch-discussion-threadhttpsdiscoursepsychopyorgtpavloviaswitch-determinisitic-counterbalancing-for-pavlovia-experiments25055-2" aria-label="Heading link"> PavloviaSwitch try it | github | discussion thread An R-based online applet to implement controlled/deterministic counterbalancing for pavlovia experiments (i.e., a VESPR stu…

Time reproduction and production task code | try it A brief demo for a time reproduction and time production task with commented code components for trials feedback and whole tutorial feedback

I posted these in their own thread , but I’m adding them here since this seems to be the main repository for online demos: Online microphone recording: code | try it This demo shows how to create an experiment that records audio via a participant’s microphone online. It also checks whether the part…

PsychoPy Online Demos

Blog

Topic		Replies	Views
Wakefield's Daily Tips Blog online , pavlovia	122	4519	July 8, 2026
Pavlovia Surveys: Page-level timers and one-time random assignment without blocks/triggers? Pavlovia Surveys timing , randomization , pavlovia	47	388	July 31, 2026
Custom web component for online experiments: Forms, surveys, questionnaires, and other web-based content Blog pavlovia	33	6151	July 2, 2021
Translating PsychoPy code to Javascript & general documentation Online experiments	42	7203	June 1, 2020
IAT Py -> JS Pavlovia Help Online experiments	3	1039	July 3, 2019

PsychoPy Online Demos

Related topics