Enable your server players to see when someone actively writing in chat.
Server admins should install this plugin on their server. Then everyone who install TypingInChat client side mod will have visual indication while they are mashing keys in chat interface.
Players who do not have client-side mod will only see other player's indicators and will not have their own.

Features

• Animated and highly customizable. Looks defined by server admins.
• Permissions support to show or hide indication for specific users or groups.
• Visible for players that don't have clientside mod.
• Based on packets and text-display entities.
• Text-displays are attached to players.

Customization Examples

Colored indicator, indentation enabled, text-shadow disabled: GIF

Colored everything, no indentation, text-shadow enabled: GIF

Default colors, player name hidden: GIF

Installation

You need to put typinginchat-spigot.jar into server plugins folder. Also, you need to have packetevents 2.6.0 and HologramAPI 1.6.0 or newer installed.

Configuration

You may change TIC indicators appearance with config.yml.

config.yml

#Show player display names
show-names: true
#Indentation style of typing icon
icon-indentation: true
#Hologram visibility radius
view-range: 16
#Hologram visibility through blocks
visible-through-blocks: false
#UNICODE character or text for typing animation
typing-char: "✎"

#Color customization
names-color: "#ffffff"
typing-icon-color: "#ffffff"
background-color: "#000000"
#From 0 to 255
background-transparency: 50
#Shadow outline of text font
text-shadow: false

#use /tic reload command to apply changes

Permissions

tic.display - allows player to have tic indication. True by default, but you can remove it from players or groups.

tic.admin - required for /typinginchat reload command usage.

Related

Link for client-side mode
(required only for players who want to show when they typing in chat):
TypingInChat-Mod