使用方法
- 添加图片 — 点击"添加图片"选择多个文件,或将图片拖放到页面任意位置。每张图片按添加顺序成为一帧。
- 设置帧延迟 — 每帧显示的毫秒数。标签实时更新为秒(如 200 ms = 0.20s/帧)。
- 选择最大宽度 — 每帧缩小至此宽度内(保留宽高比,不放大),保持 GIF 体积小。
- 选择颜色数和抖动 — 颜色越少文件越小;颜色有限时开启抖动平滑渐变。
- 下载 GIF — 有两帧或以上时按钮启用。工作时画布上播放预览动画。
选择帧延迟
For a quick slideshow, 100–200 ms per frame feels brisk. Use 300–500 ms when each photo should register, and 800 ms+ for a caption-style display. GIF stores delay in centiseconds (1/100 s), so 200 ms is written as 20 — the tool handles this for you.
功能特性
- Combine many photos into one looping animated GIF, one frame per image.
- Adjustable per-frame delay (20–2000 ms) with a live seconds readout.
- Max-width downscale keeps the GIF small; aspect ratio is always preserved.
- Per-frame color quantization (32–256 colors) via median-cut, with optional Floyd–Steinberg dithering.
- Loop-forever toggle and a self-contained GIF89a encoder with LZW compression — no external libraries.
- Live on-canvas preview that plays frames at the chosen delay.
- 全部运算在浏览器本地完成,你的数据不会上传到任何服务器。
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