Discord

Discord is a voice, video, and text communication service to talk and hang out with your friends and communities.

HowTo

How to search a specific channel? Howto use the search box in the top right to search only in a specific channel within a discord server. (source)

• On desktop/browser, you can add in:#general in the search bar on the top right corner if you only want results of the #general channel.
• On mobile, go to the channel you want to search the message on, you see a magnifying glass icon in the top right corner of your screen, click on it and it will return the messages only from that specific channel.