Are the GIFs compatible with other platforms?

While specifically optimized for Slack's dimensions and file constraints, the generated GIFs are standard files that will work on Discord, Microsoft Teams, or any web-based platform.

What kind of graphics can I animate?

You can animate standard emojis, custom shapes, text with readability outlines, and even complex particle systems or mirror effects using the provided helper utilities.

Can I combine multiple animation effects?

Yes, the animation primitives are designed to be composable. You can apply multiple transformations, such as a bounce and a shake, to the same object within your frame generation logic.

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

The skill includes specialized validators and an 'emoji mode' that applies aggressive optimization techniques, such as reducing the color palette to 32-48 colors and limiting frame counts to stay under the strict limit.

Does this require external image editing software?

No, this skill is designed to be entirely programmatic, utilizing Python-based tools like the PIL library to create, optimize, and save GIFs directly within your Claude Code environment.

Slack GIF & Emoji Creator

Name: Slack GIF & Emoji Creator
Author: davepoon

bydavepoon

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2,257

Design Tools

Generates high-performance animated GIFs and custom emojis specifically optimized for Slack's strict file size and dimension requirements.

About

The Slack GIF Creator is a specialized toolkit designed to help developers and creators build Slack-ready assets without the trial and error of manual optimization. It provides a robust library of composable animation primitives—such as shake, bounce, morph, and kaleidoscope effects—alongside strict validation tools to ensure your creations meet Slack's challenging 64KB limit for emojis and 2MB limit for message GIFs. By combining programmatic frame generation with intelligent color quantization and optimization utilities, this skill allows for the creation of professional-grade animations that work perfectly in any Slack workspace.

Key Features

Specialized typography engine with outlined text for high readability at small emoji scales
2,257 GitHub stars
Advanced visual effects including particle systems, shockwaves, and kaleidoscopic mirrors
Extensive library of composable animation primitives including shake, bounce, spin, and explode
Strict Slack size validators for both custom emojis (64KB) and message GIFs (2MB)
Automated color management and quantization to maximize visual quality within file size constraints

Use Cases

Creating optimized announcement GIFs for team-wide Slack messages and headers
Building automated workflows to generate dynamic status or achievement animations for developers
Designing custom animated reaction emojis that meet the strict 64KB upload threshold

About

Key Features

Specialized typography engine with outlined text for high readability at small emoji scales
2,257 GitHub stars
Advanced visual effects including particle systems, shockwaves, and kaleidoscopic mirrors
Extensive library of composable animation primitives including shake, bounce, spin, and explode
Strict Slack size validators for both custom emojis (64KB) and message GIFs (2MB)
Automated color management and quantization to maximize visual quality within file size constraints

Use Cases

Creating optimized announcement GIFs for team-wide Slack messages and headers
Building automated workflows to generate dynamic status or achievement animations for developers
Designing custom animated reaction emojis that meet the strict 64KB upload threshold