[{"data":1,"prerenderedAt":343},["ShallowReactive",2],{"nav:en":3,"content:en:hub-hardware":155,"cards:en:hardware":332},{"sections":4,"sheet":130,"site":133},[5,25,46,58,82,100],{"section":6,"hub":7,"tests":10},"reaction",{"key":8,"path":9},"hub-reaction","\u002Freaction-tests",[11,15,18,22],{"key":12,"path":13,"featured":14},"reaction-time","\u002Freaction-time-test",true,{"key":16,"path":17,"featured":14},"f1-reaction","\u002Ff1-reaction-test",{"key":19,"path":20,"featured":21},"sound-reaction","\u002Faudio-reaction-test",false,{"key":23,"path":24,"featured":14},"aim-trainer","\u002Faim-trainer",{"section":26,"hub":27,"tests":30},"click",{"key":28,"path":29},"hub-click","\u002Fclick-speed-tests",[31,34,37,40,43],{"key":32,"path":33,"featured":14},"cps-test","\u002Fcps-test",{"key":35,"path":36,"featured":14},"spacebar-clicker","\u002Fspacebar-clicker",{"key":38,"path":39,"featured":14},"click-counter","\u002Fclick-counter",{"key":41,"path":42,"featured":21},"tap-bpm","\u002Ftap-bpm",{"key":44,"path":45,"featured":21},"apm-test","\u002Fapm-test",{"section":47,"hub":48,"tests":51},"typing",{"key":49,"path":50},"hub-typing","\u002Ftyping-tests",[52,55],{"key":53,"path":54,"featured":14},"typing-test","\u002Ftyping-test",{"key":56,"path":57,"featured":14},"reading-speed","\u002Freading-speed-test",{"section":59,"hub":60,"tests":63},"memory",{"key":61,"path":62},"hub-memory","\u002Fmemory-tests",[64,67,70,73,76,79],{"key":65,"path":66,"featured":21},"number-memory","\u002Fnumber-memory-test",{"key":68,"path":69,"featured":14},"visual-memory","\u002Fvisual-memory-test",{"key":71,"path":72,"featured":21},"sequence-memory","\u002Fsequence-memory-test",{"key":74,"path":75,"featured":21},"verbal-memory","\u002Fverbal-memory-test",{"key":77,"path":78,"featured":14},"chimp-test","\u002Fchimp-memory-test",{"key":80,"path":81,"featured":14},"stroop-test","\u002Fstroop-test",{"section":83,"hub":84,"tests":87},"hardware",{"key":85,"path":86},"hub-hardware","\u002Fhardware-tests",[88,91,94,97],{"key":89,"path":90,"featured":14},"keyboard-test","\u002Fkeyboard-tester",{"key":92,"path":93,"featured":14},"mouse-test","\u002Fmouse-tester",{"key":95,"path":96,"featured":21},"polling-rate","\u002Fpolling-rate-test",{"key":98,"path":99,"featured":14},"refresh-rate","\u002Frefresh-rate-test",{"section":101,"hub":102,"tests":105},"personality",{"key":103,"path":104},"hub-personality","\u002Fpersonality-tests",[106,109,112,115,118,121,124,127],{"key":107,"path":108,"featured":14},"big-five","\u002Fbig-five-personality-test",{"key":110,"path":111,"featured":14},"personality-test","\u002Fpersonality-test",{"key":113,"path":114,"featured":21},"quick-personality","\u002Fquick-personality-test",{"key":116,"path":117,"featured":21},"personality-types","\u002F16-personality-types-test",{"key":119,"path":120,"featured":14},"career-interests","\u002Fcareer-interest-test",{"key":122,"path":123,"featured":21},"dark-triad","\u002Fdark-triad-test",{"key":125,"path":126,"featured":21},"political-values","\u002Fpolitical-values-test",{"key":128,"path":129,"featured":21},"self-esteem","\u002Fself-esteem-test",{"key":131,"path":132},"spec-sheet","\u002Fspec-sheet",[134,137,140,143,146,149,152],{"key":135,"path":136},"about","\u002Fabout-us",{"key":138,"path":139},"methodology","\u002Fmethodology",{"key":141,"path":142},"instruments","\u002Fpersonality-questionnaire",{"key":144,"path":145},"facts","\u002Ffacts",{"key":147,"path":148},"privacy","\u002Fprivacy-policy",{"key":150,"path":151},"terms","\u002Fterms-of-use",{"key":153,"path":154},"contact","\u002Fcontact-us",{"key":85,"kind":156,"locale":157,"contentUpdated":158,"review":159,"title":160,"description":161,"h1":162,"intro":163,"sections":167,"related":259,"crumbs":274,"citations":280,"relatedHeading":306,"blurbs":307,"hubItems":313,"sourcesHeading":331},"hub","en","2026-10-06","ai-raw","Hardware tests for your mouse, keyboard and screen","Free hardware tests: see which keys and buttons work, how often your screen refreshes and how fast your mouse reports. Nothing is installed or uploaded.","Hardware tests",[164],{"t":165,"v":166},"text","These hardware tests check the mouse, keyboard and screen you are using right now, in your browser, and tell you what they found.",[168,182,194,206,214],{"role":169,"section":170},"section",{"heading":171,"blocks":172},"What these tests tell you",[173,178],{"type":174,"text":175},"paragraph",[176],{"t":165,"v":177},"A hardware test looks at the device in front of you: whether every key and button answers, how many times a second your screen draws a new picture and how often your mouse reports where it is. Nothing is installed, and nothing about your device is sent anywhere.",{"type":174,"text":179},[180],{"t":165,"v":181},"They are useful for a quick check before a game, when a key seems to stick, or when you are choosing between two screens.",{"role":169,"section":183},{"heading":184,"blocks":185},"What a browser can and cannot see",[186,190],{"type":174,"text":187},[188],{"t":165,"v":189},"A browser sees less than a program on your computer does. It can tell when a key is pressed or a button is clicked, and it can time the pictures your screen draws, but it cannot look inside the device. If a test shows a problem, it is a reason to look more closely, not a final verdict on your hardware.",{"type":174,"text":191},[192],{"t":165,"v":193},"Results can also change a little with what else your computer is doing, so try a test twice.",{"role":169,"section":195},{"heading":196,"blocks":197},"Before you replace anything",[198,202],{"type":174,"text":199},[200],{"t":165,"v":201},"If a key seems not to work, try it in another program and clean around it first. If a screen looks slower than it should, check the display settings of your system. A browser test is a quick first look, and the maker's own tools or a repair shop can tell you more.",{"type":174,"text":203},[204],{"t":165,"v":205},"Keep in mind that these tests are for information only and are not a guarantee about how your device will behave.",{"role":169,"section":207},{"heading":208,"blocks":209},"When to use them",[210],{"type":174,"text":211},[212],{"t":165,"v":213},"A hardware test is best used on purpose: when a mouse seems to click twice, when the pointer jumps, when games feel less smooth than they should, or when you are comparing two keyboards. Close other tabs and programs first, charge a wireless device, and run the test twice before you draw a conclusion.",{"role":169,"section":215},{"heading":216,"blocks":217},"What the studies say",[218],{"type":174,"text":219},[220,222,225,227,229,231,235,237,240,242,245,247,251,253,257],{"t":165,"v":221},"Your device adds its own delay to every timed test. When researchers pressed ordinary laptops and phones with a robot, browsers recorded the presses as slower than they were by an average of ",{"t":223,"v":224},"num","57.6",{"t":165,"v":226}," ms to ",{"t":223,"v":228},"132.9",{"t":165,"v":230}," ms, depending on the device and browser",{"t":232,"id":233,"n":234},"cite","pronk-2020",1,{"t":165,"v":236},". A study of esports players found that lower delay helped them more than a higher refresh rate on its own",{"t":232,"id":238,"n":239},"spjut-2019",2,{"t":165,"v":241},". The ",{"t":243,"v":244,"to":145,"key":144},"link","Facts",{"t":165,"v":246}," articles on ",{"t":243,"v":248,"to":249,"key":250},"input lag","\u002Ffacts\u002Finput-lag","facts-input-lag",{"t":165,"v":252}," and ",{"t":243,"v":254,"to":255,"key":256},"how reaction time is measured","\u002Ffacts\u002Fhow-is-reaction-time-measured","facts-reaction-time-measured",{"t":165,"v":258}," explain the details.",[260,263,268,271],{"key":28,"path":29,"title":261,"description":262},"Click speed tests","Free click speed tests: count your clicks a second, press the space bar as fast as you can or keep a tally of anything. Your results stay in your browser.",{"key":264,"path":265,"title":266,"description":267},"guide-test-accuracy","\u002Fguides\u002Fare-online-tests-accurate","Are online tests accurate?","Are online tests accurate? How a browser times a reaction, what screens, mice and keyboards add, and how far an online questionnaire can be trusted.",{"key":49,"path":50,"title":269,"description":270},"Typing tests","Free typing tests that show your speed in words per minute and how many mistakes you make. Your results stay in your browser and no sign-up is needed.",{"key":250,"path":249,"title":272,"description":273},"Input lag","Input lag explained: what a 144 Hz screen, a fast mouse and your browser add to a reaction, what esports research found, and what it means for a test.",[275,279],{"key":276,"path":277,"name":278},"home","\u002F","What would you like to test?",{"key":85,"path":86,"name":162},[281,294],{"n":234,"id":233,"kind":282,"authors":283,"year":284,"title":285,"venue":286,"doi":287,"url":288,"population":289,"notes":290},"source","Pronk, T., Wiers, R. W., Molenkamp, B., & Murre, J.",2020,"Mental chronometry in the pocket? Timing accuracy of web applications on touchscreen and keyboard devices","Behavior Research Methods, 52(3), 1371–1382","10.3758\u002Fs13428-019-01321-2","https:\u002F\u002Fpmc.ncbi.nlm.nih.gov\u002Farticles\u002FPMC7280355\u002F","Four devices from 2015 and 2016: a MacBook Pro, an ASUS laptop, a Samsung Galaxy S7 and an iPhone 6S, pressed by a robot",[291],{"date":158,"url":292,"quote":293},"https:\u002F\u002Fwww.ebi.ac.uk\u002Feuropepmc\u002Fwebservices\u002Frest\u002FPMC7280355\u002FfullTextXML","Abstract: \"In controlled circumstances, as can be realized in a lab setting, very accurate stimulus timing and moderately accurate RT measurements could be achieved on both touchscreen and keyboard devices, though RTs were consistently overestimated.\" Table 4 \"Descriptives of RT overestimations (in milliseconds) per device and browser\" (OS, Web Browser, Minimum, Maximum, Mean, SD): \"Android Chrome 46.0 103.5 69.8 7.4\", \"iOS Safari 48.3 96.3 57.6 6.5\", \"MacOS Safari 93.0 163.7 132.9 8.1\", \"Windows Chrome 64.7 70.6 68.5 1.7\", \"Windows Firefox 49.8 84.9 61.9 5.7\".",{"n":239,"id":238,"kind":282,"authors":295,"year":296,"title":297,"venue":298,"doi":299,"url":300,"population":301,"notes":302},"Spjut, J., Boudaoud, B., Binaee, K., Kim, J., Majercik, A., McGuire, M., Luebke, D., & Kim, J.",2019,"Latency of 30 ms benefits first person targeting tasks more than refresh rate above 60 Hz","SIGGRAPH Asia 2019 Technical Briefs","10.1145\u002F3355088.3365170","https:\u002F\u002Fresearch.nvidia.com\u002Fpublication\u002F2019-11_Latency-of-30","Eight skilled esports players aged 27 to 36",[303],{"date":158,"url":304,"quote":305},"https:\u002F\u002Fresearch.nvidia.com\u002Fsites\u002Fdefault\u002Ffiles\u002Fpubs\u002F2019-11_Latency-of-30\u002FFPS_Tasks_sa2019_AuthorVersion.pdf","Title: \"Latency of 30 ms Benefits First Person Targeting Tasks More Than Refresh Rate Above 60 Hz\". Abstract: \"we isolate latency and refresh rate by artificially increasing latency when operating at high refresh rates. Eight skilled esports athletes then perform gaming-inspired first person targeting tasks under varying conditions of refresh rate and latency\" \"We show that reduced latency has a clear benefit in task completion time while increased refresh rate has relatively minor effects on performance when the inherent latency reduction present at high refresh rates is removed.\" \"Subjects. Eight subjects (aged 27-36)\" \"The selected refresh rates were: 60 Hz (today's baseline), 120 Hz (today's gamer), 240 Hz (gaming enthusiast) and 360 Hz (experimental).\" Table 1, click to photon latency at 60 Hz: \"22 (6.0) 55 (5.9) 88 (5.8)\". Figure 1: \"For the 1-hit tasks, latency has a significant effect on task completion times while the effect of refresh rate is not statistically significant.\"","Keep reading",{"keyboard-test":308,"mouse-test":309,"polling-rate":310,"refresh-rate":311,"double-click":312},"Press your keys and see which ones work.","Check every button and the wheel of your mouse.","Find out how often your mouse reports where it is.","Find out how many pictures a second your screen shows.","Check whether one press of your mouse button ever counts twice.",[314,317,320,325,328],{"key":89,"path":90,"title":315,"description":316},"Keyboard tester","Free keyboard tester: press every key and watch it light up, see how many keys you held at once and whether any key bounced. No sign-up, nothing sent.",{"key":92,"path":93,"title":318,"description":319},"Mouse tester","Free mouse tester: press every button, turn the wheel and double-click to see which parts work and whether a button bounces. No sign-up, nothing sent.",{"key":321,"path":322,"title":323,"description":324},"double-click","\u002Fmouse-tester\u002Fdouble-click","Double click test","Free double click test: click your mouse button and see whether one press ever counts twice, and how fast two clicks follow each other. Nothing is sent.",{"key":95,"path":96,"title":326,"description":327},"Polling rate test","Free polling rate test: move your mouse for two seconds and see how many position reports it sends every second. No sign-up, nothing leaves your device.",{"key":98,"path":99,"title":329,"description":330},"Refresh rate test","Free refresh rate test: see how many frames your screen draws every second, and whether any came late. It takes a few seconds and needs no sign-up.","Sources",[333],{"section":83,"hub":86,"cards":334},[335,337,339,341],{"key":89,"test":89,"path":90,"title":315,"line":308,"minutes":234,"devices":336},{"mouse":21,"touch":21,"keyboard":14},{"key":92,"test":92,"path":93,"title":318,"line":309,"minutes":234,"devices":338},{"mouse":14,"touch":21,"keyboard":21},{"key":95,"test":95,"path":96,"title":326,"line":310,"minutes":234,"devices":340},{"mouse":14,"touch":21,"keyboard":21},{"key":98,"test":98,"path":99,"title":329,"line":311,"minutes":234,"devices":342},{"mouse":14,"touch":14,"keyboard":14},1791315142594]