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SKILL.md

name: video-to-gif description: | Convert multiple video files (MOV/MP4) into a single merged GIF with customizable speed per segment. Use this skill when users want to:

  • Merge multiple videos into one GIF
  • Create demo GIFs from screen recordings
  • Combine video clips with different playback speeds
  • Convert videos to optimized GIFs with compression Triggers: "create GIF from videos", "merge videos to GIF", "convert MOV to GIF", "combine videos into animated GIF"

Video to GIF Converter

Merge multiple video files into a single optimized GIF with per-segment speed control.

Quick Start

.claude/skills/video-to-gif/scripts/merge_videos_to_gif.sh -o output.gif video1.mov:2 video2.mov:4.75 video3.mov:4.75

Script Usage

.claude/skills/video-to-gif/scripts/merge_videos_to_gif.sh -o output.gif [options] video1:speed1 video2:speed2 ...

Options

Option Default Description
-o FILE (required) Output GIF file path
-w WIDTH 800 Output width in pixels
-h HEIGHT 338 Output height in pixels
-f FPS 8 Frames per second (lower = smaller file)
-c COLORS 128 Max colors (64-256, lower = smaller file)
-l LOSSY 80 Lossy compression 0-200 (higher = smaller file, more artifacts)

Video Format

path/to/video.mov:speed_multiplier

  • 1 = original speed
  • 2 = 2x faster (video plays in half the time)
  • 4.75 = 4.75x faster
  • 0.5 = half speed (slower playback)

Examples

Basic: Merge 3 videos with different speeds

First video slower (2x), others fast (4.75x):

.claude/skills/video-to-gif/scripts/merge_videos_to_gif.sh -o demo.gif \
  ~/Desktop/intro.mov:2 \
  ~/Desktop/action.mov:4.75 \
  ~/Desktop/outro.mov:4.75

Custom resolution and compression

Create a smaller GIF (640x360, 64 colors, high compression):

.claude/skills/video-to-gif/scripts/merge_videos_to_gif.sh -o small.gif -w 640 -h 360 -c 64 -l 120 \
  video1.mov:3 video2.mov:3

Higher quality GIF

More colors and lower compression:

.claude/skills/video-to-gif/scripts/merge_videos_to_gif.sh -o hq.gif -f 10 -c 256 -l 40 \
  video.mov:2

Dependencies

Required tools (install via Homebrew on macOS):

brew install ffmpeg gifsicle

Tips

  • File size too large? Reduce FPS (-f 6), colors (-c 64), or increase lossy (-l 100)
  • Video looks choppy? Increase FPS (-f 12) or reduce speed multiplier
  • Black bars appearing? Videos with different aspect ratios get padded to fit target dimensions
  • First segment too fast? Use a lower speed multiplier (e.g., :1.5 instead of :4)