slack-gif-creator

Installation
Summary

Create animated GIFs optimized for Slack with composable animation primitives and built-in validators.

  • Provides 15+ animation primitives (shake, bounce, spin, pulse, fade, zoom, explode, wiggle, slide, flip, morph, move, kaleidoscope) that compose freely for custom effects
  • Includes validators for Slack's strict size limits (2MB for messages, 64KB for emoji) and dimension requirements, with optimization strategies for each constraint
  • Offers helper utilities for GIF assembly, text rendering, color palettes, particle effects, easing functions, and frame composition
  • Distinguishes emoji GIFs (10-15 frames, 32-48 colors, simple designs) from message GIFs (higher frame counts and color budgets) with mode-specific guidance
SKILL.md

Slack GIF Creator - Flexible Toolkit

A toolkit for creating animated GIFs optimized for Slack. Provides validators for Slack's constraints, composable animation primitives, and optional helper utilities. Apply these tools however needed to achieve the creative vision.

Slack's Requirements

Slack has specific requirements for GIFs based on their use:

Message GIFs:

  • Max size: ~2MB
  • Optimal dimensions: 480x480
  • Typical FPS: 15-20
  • Color limit: 128-256
  • Duration: 2-5s

Emoji GIFs:

  • Max size: 64KB (strict limit)
  • Optimal dimensions: 128x128
  • Typical FPS: 10-12
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Installs
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GitHub Stars
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First Seen
Jan 20, 2026