This wikiHow teaches you how to Google an image based on an existing image. You can use the Google search feature on your desktop to upload your own image and perform a search, or you can use the Google Chrome browser on both the mobile and desktop versions to search for images online that match your image.
Steps
Method 1 of 3: Use Google Search on a Desktop Computer

Step 1. Open the Google Images page
Go to

Step 2. Click Camera
It's the camera icon to the right of the search bar in the middle of the page. Click on one of the following images: Depending on the option you have selected, this step varies: If your photo exists on the Internet, you will see different sizes and versions of the photo; if not, Google will find images that look similar to the one you uploaded. Press the red, yellow, blue and green icon of the Chrome application. It's at the top of the screen. Type the word and phrase for which you want to search for an image, and then tap To go (iPhone) or Enter or ✓ (Android). It's at the top of the tab, just below the search bar. This will display all the image results for your search. Tap an image that you want to use as the basis for your search. The image will open. This will open a pop-up menu. It's in the drop-down menu. You should see a list of the same (or similar) images on this page. It is a red, yellow, blue and green sphere. This is at the top of the Chrome window. Doing this will select the content of the address bar. Type the word and phrase for which you want to search an image, then press ↵ Enter. You'll see this option near the search bar near the top of the page. This will display all the image results for that search. Click on an image that you want to use as a search. The image will open. This link is under the image title to the right of the gray box. You'll see a list of the same (or similar) images on this page.
If you want to find images that match a certain word or phrase, simply type that word or phrase in the search bar and press ↵ Enter to see the image results
Step 3. Select a photo upload option
Step 4. Upload your photo
Step 5. Review the search results
Method 2 of 3: Use Google Chrome on a mobile device
Step 1. Open Google Chrome
Step 2. Press the search bar
Step 3. Enter your search term
Step 4. Click on the PICTURES tab
Step 5. Select an image to use
Step 6. Press ⋮ below the image
Step 7. Click Search by image
Step 8. Review the results
Method 3 of 3: Use Google Chrome on a Desktop Computer
Step 1. Open Google Chrome
Step 2. Click on the address bar
Step 3. Enter your search term
Step 4. Click on the Images tab
Step 5. Select an image you want to use
Step 6. Click Search by image
Step 7. Review the results