将 GIF 文件拖到这里,或点击选择
支持动态 .gif 文件
可调整宽度和高度,并可选择锁定宽高比
文件大小上限:80MB
多格式支持
一键输出 MP4/WEBM/MKV/AVI 等主流格式,兼容播放器与剪辑软件。
本地转换,无需上传
基于 FFmpeg.wasm 在浏览器中直接运行,隐私安全,无需安装软件。
画质完全可控
支持 CRF、分辨率、编码器与比特率设置,平衡质量与体积。

这个工具适合什么场景
当 GIF 尺寸不适合文档、社媒、工单或产品更新页面时,这个工具可以直接按目标宽高重设尺寸,同时保留动画效果。
- 按目标像素调整你可以直接输入宽高,而不是依赖平台自动缩放。
- 保留动画输出结果仍然是可播放的 GIF 文件,不会变成静态图。
- 支持比例锁定保持原始宽高比或关闭锁定,满足严格布局要求。
核心功能
围绕稳定 GIF 改尺寸场景设计
宽高可单独设置
直接输入目标宽度和高度,适合文档、公告和社媒卡片场景。
尺寸前置校验
处理前会先检查数值是否合法,避免无效执行。
浏览器本地处理
GIF 文件只在当前浏览器中处理,无需上传到远程服务。
Why use this GIF resizer
When a GIF is too large for layout slots, too small for readability, or stretched by automatic rendering, resizing is the cleanest fix. This page keeps that operation explicit and repeatable.



How to resize GIF online
A clear six-step workflow for animated GIF resizing
Step 1 - Open the GIF resizer
Go to the resizer section and start without account setup or desktop installation.
Step 2 - Upload your GIF
Drag and drop a GIF file or pick one from local storage. The tool validates file type and size before processing.
Step 3 - Review source dimensions
Check original width and height so you can set a target size that fits your destination layout.
Step 4 - Set width and height
Enable keep-aspect mode for proportional scaling, or disable it for custom dimensions with full control.
Step 5 - Run resizing
Start processing and monitor progress in the UI. Validation catches invalid dimensions before execution.
Step 6 - Download resized GIF
Download the output file with a -resized suffix and verify playback in your target app or page.
Designed for repeat GIF delivery
Dimension control for docs, social, and product communication workflows
Resize controls
Width + Height
Explicit numeric target dimensions
Aspect handling
On / Off
Lock ratio or set custom values
Output format
Animated GIF
Playback behavior retained
What users say
How teams use GIF resizing in real publishing pipelines
Avery Long
Technical Writer
Our docs have fixed content widths, so random GIF dimensions break readability. This resizer lets me hit exact targets quickly without reopening design software.
Riku Tanaka
QA Specialist
I share many animated bug reproductions. The keep-aspect switch helps me resize for ticket systems while preserving motion clarity.
Camila Duarte
Growth Marketer
Social posts often need strict dimensions. The custom width-height path plus local processing made our campaign prep much faster.
常见问题
关于尺寸、比例和输出行为的说明
调整后还会保留动画吗?
会。输出结果仍然是动画 GIF。
比例锁定有什么作用?
开启后,修改宽度会自动同步高度,反之亦然,以保持原始比例。
可以自由输入宽高吗?
可以。关闭比例锁定后即可分别输入宽度和高度。
如果处理失败怎么办?
先确认 GIF 文件未损坏、尺寸值有效,并尝试关闭高占用标签页后再次处理。
开始调整 GIF 尺寸
如果你还需要继续压缩或转换格式,可以接着使用站内相关工具。