What's New

What is new at Mouse Accuracy, newest first.

Latest update

v2.5.6

Hit and miss marks sit exactly where you clicked

The hit dot and the miss X now sit on the exact screen pixel you clicked, at 120, 125 and 150 percent scaling too.

  • On screens set to 120, 125 or 150 percent, or with a larger Windows text size, the marks could still sit a pixel or so off the cursor's center: browsers draw page elements on whole screen pixels, so a mark placed between them got moved.
  • Each mark is now a tiny picture, drawn pixel by pixel and placed exactly on the pixel you pressed.
  • In a browser window, the tabs and toolbar above the page can leave the page starting a fraction of a screen pixel off, which put the miss X one pixel above the cursor's dot on some screens. The marks now allow for that.
  • Measured from screenshots in Chrome at 100, 110, 120, 125, 150, 175 and 200 percent, in the game, the cursor picker's test area, the Mouse Test and the Click Speed Test: every mark's center exactly on the middle of the clicked pixel. Firefox and Safari's engine measure the same in the game.
  • The hit mark is a neutral gray dot of one size again, whatever target you hit. It had been taking the color of the target since 2025 and growing with bigger targets since January. The red X for a miss looks as it did.
  • The ring that pulses out from a hit now starts from that same exact point, so it stays centered on the mark.
  • The burst of little pieces a hit throws out in the game is half the size it was, so it stays close to the target.
  • In Firefox, the mouse's Back button no longer ends a Mouse Test: once you have picked Guided or Open Test, pressing it with the pointer in the test box keeps you on the page. Firefox keeps the side buttons to itself, so they still cannot be tested there.
Play

Earlier updates

Pick your own round length

v2.5.5

Step the Duration arrows past Unlimited to Custom and type any round from 5 seconds to an hour.

  • On the home page, press Longer round until the Duration row shows a box, then type a number of seconds in it, anything from 5 to 3600. Press Enter or tap away to apply it. A round of 100 seconds or more counts down as minutes and seconds.
  • A 60 second round joins the presets, between 30 and 90, so the arrows now step 15, 30, 60, 90, Unlimited and then Custom.
  • Challenge links carry a custom length too, so a friend plays exactly the round you did.
  • Your round length is now remembered the moment you change it, like the other settings, so it is still there after a reload.
  • Play time toward the Endurance and Marathon achievements now counts the time you actually played, so a long round ended early counts what it was.
  • Hit and miss marks no longer sit a pixel off the cursor on screens scaled above 100 percent, such as 125, 150 or 200 percent or a larger Windows text size.

A smoother Mouse Test, and beat a friend's challenge

v2.5.4

Open Test's polling check now finishes, Guided steps get Redo, and beating a friend's score gets a celebration.

  • In Open Test, the polling rate check now finishes. Draw fast circles for a few seconds and it reads your mouse's rate, or says "At least" when your hand is slower than the mouse.
  • In Open Test, keep the left or right button pressed in the box for a moment and the 5 second hold check starts, with the ring already filling. A quick click is still just a click.
  • Before your first click in Open Test, a soft "Click anywhere here" target shows where to press.
  • The hint that shows when your pointer is outside the test box is now big words in the middle of a dimmed box, not a drawn arrow, and it stops once you have started testing.
  • Right click is easier to find. After the double click step, Test right click too is a button beside Continue. In Open Test, the double click check names the buttons it judged, such as "10 left, 4 right".
  • Every finished Guided step has a Redo button beside Continue, which runs that step again from scratch.
  • In Open Test on a wide screen, the four readings beside the box are now four even tiles, two by two, so the page looks tidy and the boxes beside it stay put as results come in.
  • Open a friend's challenge link and press Play with these. After the round, the top of your results says how you did against their score: beat it, tied it, or not this time.
  • Beat it and there is a little celebration, plus a Challenge them back button that copies a fresh link with your new score. Fall short and Run it back starts another round with the same settings.
  • The score to beat stays only while this tab is open. It is never saved or sent, and reloading the page forgets it.
  • The share buttons under your results picture now share one quiet look, so the page is easier to read. Nothing about what they do changed.
Try the Mouse Test

A new Mouse Test, and challenge a friend

v2.5

Test your mouse step by step, or freely like before. Plus: send a friend your settings and a score to beat.

  • The Mouse Test now starts with a choice. Start Guided Test walks you through five quick checks, one at a time. Open Test lets you press anything in any order, with every number showing, like before.
  • Each guided step has one clear instruction and a picture of what to do, and waits for you to press Continue. Doing something early never finishes a step for you: each one is done fresh.
  • New checks: hold the left button for 5 seconds to catch a button that lets go by itself, which drops drags and stops sprays. After the left click step you can test right click too.
  • The polling rate is more honest. A slow hand sends fewer reports, so it says "At least" until you move fast enough to read your mouse's real rate.
  • At the end you get a verdict and a report you can copy, save as a picture or share, handy for a warranty claim. Open Test keeps the original layout, with every panel beside the test area.
  • Challenge a friend: on the results page, one button copies a link with your game settings and your score to beat. Your friend is asked before anything changes.
  • Save Image on the results page saves your picture again in every browser.
  • Oct 2: The hold check now counts a button that is already held down when it starts, and pressing your mouse's back button while the Mouse Test is still loading no longer leaves the page.
Try the new Mouse Test

Mouse DPI Test and Impossible targets

v2.4

Slide your mouse along a card, paper or a ruler to estimate its real DPI. Plus Impossible, a new smallest target size.

  • The Mouse DPI Test gives a quick estimate after one slide and a full one after three. It names your mouse's likely setting when it can, and says how sure it is.
  • It only captures your mouse while it measures, and lets go after each slide, or whenever you press Esc. Find it any time in the Tools menu, with your last estimate beside it.
  • Impossible is one size smaller than Tiny: 6 px targets worth 21 points a hit. It is not offered on a touch screen with no mouse, since a 6 px target is too small to tap.
  • Impossible targets grow and shrink three times as fast, so they spend most of their six seconds at full size. The red X from a near miss stays behind them, so it never hides one.
  • Three new achievements for Impossible: Mission Possible, Atom Smasher and Pinpoint, making 29 in the game. Eagle Eye, Pixel Perfect and Microscopic count Impossible games too.
  • With Mouse Path Recording off, the results page now has a picture of your result to copy, save or share. Before, it had none, or an empty one.
  • A link to any page on the site now shows that page's own preview picture when you post it.
  • Targets now appear in full view. Some used to land partly or fully off the bottom of the screen, which cost you efficiency.
  • Sep 29: A page we add now opens right away when you come back to the site, instead of showing Target Not Found.
Try the Mouse DPI Test

Mouse Test and Click Speed Test

v2.3

Two free tools: test your mouse's buttons and wheel and estimate its polling rate, or see how fast you can click.

  • The Mouse Test checks the left, right, middle and side buttons, the scroll wheel and accidental double clicks, and estimates your polling rate.
  • The Click Speed Test times runs of 1 to 60 seconds with a mouse, the keyboard or touch, gives you a letter rank, and keeps your bests in this browser.
  • On the keyboard, every press counts toward your speed, and your rank is that speed divided by how many keys you spread the presses over. The result shows the math.
  • Save or share your Click Speed Test result as a picture.
  • The home page now shows how to play and how scoring works in short cards, and small (i) tips on the game settings and results say what each one means.
  • The site works better with a keyboard and screen readers, and a new Accessibility page says what works today, what does not yet, and how to ask us for something.
  • New under Performance and Accessibility Options on the settings card: Hover to hit for head and eye trackers, Click with any key for switches, and a Motion setting for animations outside the game.
  • Fixes: the settings card fits tablets and small phones, buttons are easier to read with a green or orange target color, the countdown beeps once on each number, and the game starts even if your browser blocks storage.
  • Sep 22: Both tools are now in the new Tools menu and on the home page, and the Click Speed Test has nine achievements to unlock.
  • Sep 22: Hold R to restart a Click Speed Test run. It is off in Keys mode, where R counts as a press.
  • Sep 23: www.mouseaccuracy.com now brings you to mouseaccuracy.com, with your scores and achievements.
  • Sep 25: Three or more achievements earned at once now share one pop-up.
Try the Mouse Test

Offline play and a round of fixes

v2.2

Once you have loaded the site, the game is saved to your device and plays with no internet connection.

  • Targets, scoring, achievements, sounds and cursors all keep working offline.
  • In Chrome or Edge, click Install App at the bottom of the page, then open the game from your desktop like any other app. On iPhone or iPad, tap Share, then Add to Home Screen.
  • When a new version is ready, a small bar at the bottom asks before reloading, and it stays hidden while you play.
  • Six achievements that could never be unlocked now can: Speed Demon, Endurance, Marathon, Veteran, Dedicated and Addicted. Games you had already played count, but Speed Demon counts Insane games only from this update on.
  • The header and footer now show their frosted glass look in Chrome and Edge, and the newsletter signup box has a clear border that lights up when you click or tab into it.
  • Typing www.mouseaccuracy.com now brings you to the site.
  • Sep 19: Sharing a score on X shows your real accuracy instead of 0%.
  • Sep 19: An uploaded cursor made from a large file no longer stops your settings from saving or games from starting. If it is too big to save, it still works until you reload.

Fixes for older browsers and mouse buttons

v2.1

Older browsers like Chrome on Windows 7 now show the site in color, with targets you can see.

  • Before this update, those browsers showed targets as empty outlines, and buttons and menus had no color at all.
  • Mar 8: Only left and right clicks count in the game now, not middle clicks. You can still hold one button and click the other, as when aiming down sights.
  • Mar 8: On phones and tablets, the Share on X button on the results page no longer shows stray text.

A whole new look, combos and achievements

v2.0

A new design, plus combos, achievements, sound effects, new cursors and a picture of your mouse path after every game.

  • The whole site has a new design in the target color you pick. Hits burst into particles of that color, with a bigger burst from 10 in a row.
  • Combos: 5 hits in a row earn 1.5x points, rising to 3x at 50, and a missed click starts the count over. Tiny targets went up to 8 points a hit, and Small to 5.
  • 26 achievements to earn, though six could not be unlocked until the Sep 18 update.
  • The Achievements page also shows your games played and best score, all saved in this browser. Reset All Data, at the bottom of the page, clears it all.
  • Sound effects for hits, misses and combos, with beeps for the 3-2-1 countdown and the last five seconds. Sound starts off: turn it on with the speaker button at the top.
  • Choose from 13 crosshairs, dots and pointers in the size and color you like, or upload your own image, GIF or video up to 2 MB.
  • After each game, see the path your mouse took, with every hit and miss marked, in a picture you can copy or save.
  • The original game is still playable as the classic version.
  • Jan 14: Preset cursors in the game now move in step with your mouse, and you can turn off Mouse Path Recording or Particle Effects if the game stutters.
  • Jan 15: Your cursor now shows in the game on touch-screen laptops, and an uploaded cursor stays picked after you reload the page.
  • Jan 31: Your cursor also appears in the game on a tablet with a mouse connected, where it used to disappear.
  • Feb 20: The Crosshair Plus, Crosshair Circle and Pointer Light cursors now look the same in the game as in Cursor Settings, and while the site loads you see its title and layout instead of a blank screen.
See your achievements

Try the game

Ready to play?

Pick a difficulty and a target size on the settings card, then press Start.

Play Mouse Accuracy

Questions and answers

How do I get the newest version?

It comes on its own. When a new version is ready, a bar at the bottom of the page says "A new version is ready." Click Reload to switch to it now, or close every Mouse Accuracy tab and open the site again. Your scores, settings and achievements stay as they are.

Where do I hear about new updates?

The bell at the top of the page shows the three newest big updates on a computer, and on a phone they are in the menu. Every update, big or small, is on this page. The newsletter at the bottom of the page sends news by email.