ToolConvoyToolConvoyv2.6
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How to Compress a GIF Without Losing Quality

Lossless and visually-lossless GIF compression tricks — palette reduction, frame deduplication, ffmpeg alternates.

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Tools in this guide

Strategies

  1. Drop the palette to the minimum the image needs (best for flat-color images)
  2. Frame deduplication: use a GIF optimizer like gifsicle
  3. Frame rate: 30 → 15 fps is usually imperceptible and halves size

Tools

  • GIF Compressor (browser-side)
  • gifsicle (command line): gifsicle -O3 input.gif > output.gif
  • ffmpeg: ffmpeg -i input.gif -vf ‘fps=15,scale=480:-1’ output.gif

When to switch formats

GIF is not great for photo-like animations; APNG or MP4 (HEVC) will be smaller and higher quality.

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使い方

  1. Open the tool

    Open the relevant tool linked below in your browser. The page handles everything client-side.

よくある質問

Does this upload my file?

No. All ToolConvoy tools process files in your browser; nothing is uploaded to a server.

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