Does it support text in small emojis?

Absolutely. It includes helper utilities for typography that add high-contrast outlines to text, ensuring readability even at the small 128x128 resolution required for emojis.

How does this skill handle Slack's 64KB emoji limit?

The skill utilizes a specialized GIFBuilder that applies aggressive color quantization, duplicate frame removal, and frame-rate reduction to ensure animations meet Slack's strict requirements.

What is the difference between Message GIFs and Emoji GIFs in this toolkit?

Message GIFs are optimized for 480x480 resolution and a 2MB limit, while Emoji GIFs are optimized for 128x128 resolution and a much tighter 64KB limit with reduced color palettes.

Can I combine multiple animation effects?

Yes, the toolkit is designed with composable primitives. You can layer multiple motions, such as applying a 'shake' effect on top of a 'bounce' animation for more dynamic results.

Slack GIF Creator

Name: Slack GIF Creator
Author: ttmouse

byttmouse

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Design Tools

Generates and optimizes animated GIFs and custom emojis specifically tailored for Slack's strict file size and dimension constraints.

The Slack GIF Creator is a comprehensive toolkit designed to streamline the production of animated assets for Slack workspaces. It addresses the platform's technical challenges, such as the strict 64KB limit for custom emojis and the 2MB limit for message GIFs, by providing automated validators and aggressive optimization utilities. Users can leverage a library of composable animation primitives—including shake, bounce, spin, pulse, and morph effects—to transform simple descriptions into production-ready animations. With built-in support for high-readability typography and particle systems, it ensures that every GIF is both visually impactful and technically compliant.

Key Features

01Composable animation primitives for complex motion layering

02Strict size validation for Slack's 64KB emoji and 2MB message limits

03High-readability text rendering with outlines for small-scale emojis

0425 GitHub stars

05Advanced visual effects including particle bursts and kaleidoscope filters

06Automated color quantization and frame-rate optimization

Use Cases

01Building branded loading spinners and progress animations for status updates

02Designing custom animated reaction emojis for corporate Slack workspaces

03Creating optimized announcement GIFs for internal team communications

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add ttmouse/skills slack-gif-creator

For use in Claude.ai and ChatGPT

Download Skill