Google has added many Easter eggs to its products and services to entertain and amuse users.

Search engine

• Searching for "<blink>" or "blink html" includes samples of the blink element in the results^[1][2][3]
• Searching for "hodor" shows randomly generated "hodor" text, including capital and lowercase versions of the word "hodor".^[4][5]

Google Maps and Google Earth

• If the user goes to Loch Ness, the lake can be seen from a street view. The Pegman also looks like the Loch Ness Monster.^[6]
• For April Fools Day 2015, when in certain areas in Google Maps, there is a Pac-Man button. When clicked (if one's in a suitable area for it to work), a Pac-Man game starts, using the roads as paths for Pac-Man to go. Controllable by arrow keys.^[7]
• In early test versions of Google Maps, searching for a route between locations separated by expanses of water (e.g. Paris and New York) provided road directions to the coast of the destination country (in this case, the west coast of France) before suggesting "Swim the Atlantic Ocean (3,500 miles)" or another ocean for a different distance.^[8]
• Dragging the Google Street View "Peg man" onto Telegraph Avenue in Berkeley, CA used to display him with a tie-dyed shirt. Also, while in street view on Telegraph Avenue, one can enter and have a look around some of the shops. He is also given special clothing for some widely observed special occasions: for Halloween he rides a broomstick; for Valentine's Day he stands upon a heart; and during Christmas week, he becomes a snowman.^[9] Around February 8, the launch day of Google Maps, he appears dressed as a birthday cake. When viewing past street views, he turns into Emmett Brown, one of the protagonists from Back to the Future. When dragged into LegoLand in Carlsbad, the "Peg Man" turns into a LEGO Minifigure. When dragged into Street View in Sun Valley, Idaho, he becomes a skier. When dragged onto the vicinity of the Arthur Ashe Stadium, Flushing Meadows–Corona Park, "Peg Man" becomes a tennis player holding a racket. Dragged near the Kennedy Space Center, "Peg Man" becomes an astronaut. Also when using "Peg man" around "Groom Lake" in Nevada or "Area 51", He will turn into a UFO.
• The Mars Feature of Google Earth used to allow users to speak to a primitive ELIZA clone on the planet, by searching for "Meliza", but it later vanished, either taken away or it has disappeared. It is back as of October 28, 2013.^[10]
• There is a place on the southern point of Half Moon Island, Antarctica that has blue "roads". When the "Peg Man" is dragged on this spot, the "Peg Man" turns into a penguin and users can explore the area the same as a road. As of 2015 this easter egg has either vanished or was taken away. Penguins and a research team in red parkas can be seen at various points on these roads.^[11]
• Another 3D buildings easter egg involves the famous bridge jump scene from The Blues Brothers, which is recreated in Google Earth at the Tacony–Palmyra Bridge linking New Jersey and Philadelphia.^[8]
• In Google Maps, when "The Shire" or "Rivendell" is entered as the start point and "Mordor" as the destination and the walking directions button is clicked, the directions return the warning: "Use caution – One does not simply walk into Mordor." Works on Chrome (older) version of Google Maps. However, does not with the newer engine.^[12]
• On July 20, 2005, the 36th anniversary of the first human landing on the moon, Google debuted a version of Google Maps that included a small segment of the surface of the moon. It is based entirely on NASA images and includes only a very limited region. Panning causes the map to tile. The map also gives the locations of all moon landings, and the Google Moon FAQ humorously mentions a connection to the Google Copernicus hoax, which Google claimed to be developing. Supposedly, by 2069, Google Local will support all lunar businesses and addresses. Zooming to the closest level in Google Moon used to show that the moon was made of cheese.^[13]
• In Street View, on Earls Court Rd, London, United Kingdom, a TARDIS from the famous science fiction series Doctor Who is on display. Street View allows one to enter the TARDIS where it is "Bigger on the Inside" and explore the set actually used in the show.^[14]
• When navigating from Snowdon to Brecon Beacons, one can choose a Dragon.^[15] That takes 21 minutes. (as of April 20, 2015 Google says 32 minutes. Perhaps Google is taking air traffic into account?)

Google homepage

• From May 21–23, 2010, Google replaced its usual homepage with a playable Google-style Pac-Man game to celebrate its 30th anniversary. The easter egg here was that by pressing Insert Coin (which replaced the "I'm Feeling Lucky" button) a second time, users could play a 2-player version of Pac-Man, starring both Pac-Man and Ms. Pac-Man (moving in WASD) in the same game. This was a first in the history of Pac-Man^[16] by the creators of Google Pac-Man at the 2011 Google I/O conference. Google's game is still playable.^[17]

Android

• Since the Gingerbread (2.3) version of Google's Android operating system an easter egg containing a funny animation has been hidden. The easter egg can be accessed through the Settings application, in the About phone section, by repeatedly tapping the Android version section. The animation is different in every version of the OS.
  • In 4.4 (KitKat) a Rotating letter "K" appears, which if continually tapped turns into the text "Android" in the styling of a KitKat logo. If the Android logo is then long-pressed a tile interface loads with icons from all previous versions of Android. It appears to be a mock of the Windows phone interface.^[18]

Android applications

• In Google+, if the device is shaken, snow will fall; if the device is shaken again it will save an animated GIF of the image with falling snow to the pictures directory.^[19]
• Searching for "let's go caroling" or "let's go carolling" on Google Now will result in an extra card which displays a list of Christmas carols. Select one and one's phone will play the music and show the words.^[20]
• On the Google Play Games app, if the player swipes the Konami Code, a box will appear with a B button, and A button, and a ► button. Pressing B, A and then the ► in that order unlocks a secret achievement called "All your games are belong to us.", a reference to the well known "All your base are belong to us" phrase.^[21]
• On Google Chrome Beta for Android launched on 29 October 2014, if the user is not connected to the Internet and tries to browse the Internet , a message will be displayed telling the user that they are not connected to the Internet with a little dinosaur. On tapping this little dinosaur the browser turns into a game in which the user has to protect the running dinosaur from obstacles by tapping on the screen to jump.^[22]

Chromecast

• The model numbers for the Chromecast unit and its power adapter read H2G2-42 and MST3K-US, respectively.^[23]

YouTube

• Adding "&wadsworth=1" to a video URL will apply Wadsworth's constant, skipping the first 30% of the video.^[24]
• Searching for "doge meme" on YouTube changes the font on the search result page to pastel color Comic Sans.^[25]
• Searching for "Webdriver Torso" will return the results but with a red background and a blue rectangle around some videos. It also says "aqua.flv – Slide 000[0-9]" at the bottom left of the page. This is a reference to the Webdriver Torso mystery. Google has confirmed that it is behind the "Webdriver Torso" mystery, it is one of many tests channels used by YouTube to ensure video quality.^[26]

Other

• Pressing control-shift-y in Picasa will cause a teddybear to appear on the screen.^[27]
• In Google's iPhone and iPod touch search application, swiping downwards (past About) repeatedly in the Settings interface brings up a hidden menu item, called Bells and Whistles, allowing customization of colors, sounds and more within the app. This is now standard on the newest update.^[28]
• Going to "http://www.google.com/heart" gives a Java applet with an interactive jumping heart under the Google logo of the search page. The applet was made in 2000 by Ken Perlin.^[29]
• In Google I/O 2013 page, can click letter I or O to input password, for example, when input OIIIIIII then press enter will enter a page with ASCII code.^[30]
• In Google Glass, tap Settings -> Device info -> View licenses, then tap Google Glass's touchpad 9 times, will show Tap Meet Team option, then tap last time, will show Google Glass's develop team's photo.^[31]
• Any photograph with Christmas lights uploaded to Google+ will be turned into an animated GIF, showing sparkling lights.^[20]