Jaum Search is a free Chrome extension developed by shyPlants. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension allows users to search for words by entering the initial consonants of Korean characters and displays matching words on the current browser screen.

To use Jaum Search, simply follow these steps:

1. Enter the initial consonants of the word you want to search for in the Jaum Search extension input field. For example, if you want to search for the word "과자" (snack), you would enter "ㄱㅈ".

2. Click the downward arrow button, press Enter, or use the downward arrow key to move to the next word.

3. Click the upward arrow button, press the upward arrow key, or use the upward arrow key to move to the previous word.

4. Click the "x" button or press the "esc" key to exit the extension.

Please note that if the extension is not functioning properly, try refreshing the browser before using it.

Overall, Jaum Search is a useful Chrome extension for those who want to quickly find Korean words based on their initial consonants. Its simple interface and easy-to-use features make it a convenient tool for Korean language learners or anyone interested in Korean words.