What are the recommended dimensions for Slack emojis?

Slack emojis are best created at 128x128 pixels to ensure they look crisp while remaining under the file size limit for the platform.

Which Python libraries are required for this skill?

The skill relies on Pillow for image processing, imageio for GIF encoding, and numpy for mathematical calculations during animation.

Can this skill handle file size optimization for Slack?

Yes, it includes tools to reduce color counts (down to 48-128 colors), lower frame rates, and remove duplicate frames specifically to meet Slack's upload requirements.

Does it support easing for smooth animations?

Absolutely. The skill features a dedicated easing module with functions like bounce_out, elastic_out, and cubic interpolations for professional-looking movement.

Can I use my own images as a starting point?

Yes, the skill is designed to load user-uploaded images via the PIL library, allowing you to animate existing assets or use them as design inspiration.

Slack GIF Creator

Name: Slack GIF Creator
Author: hongbietcode

byhongbietcode

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Design Tools

Generates high-quality, optimized animated GIFs specifically designed for Slack emojis and messages using Python's PIL library.

The Slack GIF Creator skill empowers Claude to design and render custom animated GIFs with precise control over frame rate, color palette, and Slack-specific dimensions. It provides a comprehensive toolkit for building animations from scratch—including easing functions for smooth motion, specialized drawing primitives, and automated optimization strategies to ensure file sizes remain within Slack’s upload limits. Whether you need a simple pulsing heart or a complex exploding particle effect, this skill handles the technical constraints of GIF generation so you can focus on creativity and team expression.

Key Features

01Built-in validation tools to check Slack compatibility and file size constraints

02Integrated GIFBuilder for frame-by-frame animation and color palette optimization

03Slack-optimized defaults for emoji (128x128) and message (480x480) formats

042 GitHub stars

05Dynamic animation templates for effects like shaking, pulsing, fading, and particle bursts

06Library of easing functions including bounce, elastic, and ease-in-out for fluid motion

Use Cases

01Creating custom animated team emojis that react or move in specific, branded ways

02Generating decorative message-style GIFs for internal Slack announcements and celebrations

03Automating the conversion of static logo assets into optimized, moving Slack stickers

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hongbietcode/synthetic-claude slack-gif-creator

For use in Claude.ai and ChatGPT

Download Skill