Here's how to add custom emoji to Slack, step by step. ... Square images under 128KB, sized 128x128 pixels, and saved with transparent backgrounds (save as a PNG file) ...

How to add custom emojis to a Discord server. The process is simple, assuming you have permission to add them to the server. Discord will even resize images of up to 128x128 pixels so that they ...

Tap into your emoji keyboard, which is the smiley in the bottom left corner. 3. In the search bar, type the emoji you want to create, like "raven on a book." 4. Tap Create New Emoji.