🎞️ 滚动字幕 GIF 生成器（跑马灯文字动图）Create Marquee Text Image (Scrolling Text GIF)

使用说明与常见问题How-to & FAQ

「滚动字幕 GIF 生成器（跑马灯文字动图）」是什么？What is the Create Marquee Text Image (Scrolling Text GIF) tool?

输入文字，生成从右向左（或从左向右）循环滚动的跑马灯 GIF 动图：可设置字号、字体、粗体、文字颜色、背景色或透明背景、动图宽高、滚动速度和每帧时间，首尾无缝衔接、无限循环。适合店铺公告、直播间横幅、论坛签名和网页走马灯，在浏览器本地生成，不上传任何内容。Type some text and get a looping marquee GIF that scrolls right-to-left (or left-to-right). Set the font size, typeface, bold, text colour, a background colour or a transparent background, the width and height, the scroll speed and the time per frame. The loop is seamless and repeats forever. Handy for shop notices, stream banners, forum signatures and web tickers. Everything is created locally in your browser.

如何使用「滚动字幕 GIF 生成器（跑马灯文字动图）」？How do I use the Create Marquee Text Image (Scrolling Text GIF) tool?

在「滚动字幕 GIF 生成器（跑马灯文字动图）」中，按需设置「文字」、「字号」、「字体」、「文字颜色」、「背景色」等选项，然后点击「下载 GIF」按钮即可。In the Create Marquee Text Image (Scrolling Text GIF): Set "Text", "Font size", "Font", "Text colour", "Background", then click "Download GIF".

滚动一圈要多久？帧数怎么算？How long is one loop, and how many frames are there?

文字从画面一侧完全进入、再完全离开算一圈，移动距离 = 画面宽度 + 文字宽度；帧数 = 移动距离 ÷ 每帧移动像素（向上取整），一圈时长 = 帧数 × 每帧时间。例如宽 400、文字宽 300、每帧 4 像素、每帧 40 毫秒，就是 175 帧、7 秒一圈。最后一帧接回第一帧，循环播放没有跳顿。One loop is the text fully entering from one side and fully leaving the other, so the distance is the image width plus the text width. Frames = distance ÷ pixels per frame (rounded up), and loop time = frames × frame time. With a 400 px width, 300 px of text, 4 px per frame and 40 ms per frame you get 175 frames and a 7-second loop. The last frame leads straight back to the first, so the loop has no jump.

动图太大怎么办？What if the GIF is too big?

文件大小主要取决于帧数和画面尺寸：提高速度（每帧移动更多像素）、减小宽度或高度、缩短文字都能明显减少帧数和体积。单个动图最多 1000 帧。GIF 每帧时间的精度是 10 毫秒，有些浏览器会把小于 20 毫秒的帧放慢，所以最短设为 20 毫秒。The size mainly depends on the frame count and the image size. A higher speed (more pixels per frame), a smaller width or height, or shorter text all cut the frame count and file size noticeably. Each GIF can have up to 1,000 frames. GIF frame times are stored in 10 ms steps, and some browsers slow frames shorter than 20 ms, so 20 ms is the minimum.

透明背景有什么限制？Are there limits with a transparent background?

GIF 只支持“完全透明”或“完全不透明”，没有半透明，所以透明背景下文字边缘不会做抗锯齿平滑，放在与原背景色差别很大的底色上会略有锯齿。需要平滑边缘时，建议把背景色设成将要放置页面的底色。GIF pixels are either fully transparent or fully opaque, with no partial transparency, so on a transparent background the text edges are not anti-aliased and can look slightly jagged on very different backdrops. For smooth edges, set the background colour to the colour of the page it will sit on.

支持中文和表情符号吗？会上传吗？Do Chinese text and emoji work? Is anything uploaded?

支持，文字用你电脑或手机上的系统字体绘制，中文、日文、表情符号都可以（表情符号的颜色会被压缩进 GIF 的 256 色调色板）。动图完全在浏览器本地生成，不会上传任何内容。Yes. The text is drawn with your device's system fonts, so Chinese, Japanese and emoji all work (emoji colours are reduced to the GIF's 256-colour palette). The GIF is created entirely in your browser and nothing is uploaded.

有哪些选项可以调整？What options can I adjust?

「滚动字幕 GIF 生成器（跑马灯文字动图）」的设置：「文字」默认 欢迎光临 · Welcome! 🎉；「字号」默认 32，范围 6–300；「字体」可选 无衬线、衬线、等宽（默认 无衬线）；「文字颜色」默认 #ffd400；「背景色」默认 #111111；「宽度」默认 400，范围 16–1600；「高度（0 = 自动）」默认 0，范围 0–800；「方向」可选 ← 从右向左、→ 从左向右（默认 ← 从右向左）；「速度（每帧移动）」默认 4，范围 1–40；「每帧时间 (ms)」默认 40，范围 20–1000；可勾选：「粗体」（默认勾选）、「透明背景」。改动任一选项后结果会按新设置重新生成。Settings in the Create Marquee Text Image (Scrolling Text GIF) — "Text" default 欢迎光临 · Welcome! 🎉; "Font size" default 32, range 6–300; "Font": Sans-serif, Serif, Monospace (default Sans-serif); "Text colour" default #ffd400; "Background" default #111111; "Width" default 400, range 16–1600; "Height (0 = auto)" default 0, range 0–800; "Direction": Right to left, Left to right (default Right to left); "Speed (per frame)" default 4, range 1–40; "Frame time (ms)" default 40, range 20–1000; tick boxes: "Bold" (on by…

「滚动字幕 GIF 生成器（跑马灯文字动图）」免费吗？需要注册吗？Is the Create Marquee Text Image (Scrolling Text GIF) free? Do I need an account?

「滚动字幕 GIF 生成器（跑马灯文字动图）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Create Marquee Text Image (Scrolling Text GIF) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.