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Video Tools
  1. 首页
  2. Video Tools
  3. Resize Video
属于 Video Tools →

Resize Video

Scale video to a target width while preserving aspect ratio and even codec dimensions.

开始使用这个工具
浏览器本地处理不向 TOOLGRID 上传输入复制前先检查
VIDEO 工作流Resize Video 能力卡
输入
MP4, WebM, MOV, or browser-readable video
输出
Resized MP4 video
运行引擎
WebCodecs + Mediabunny, FFmpeg WASM fallback
审核日期
2026-07-17
浏览器本地工作区在下方开始,使用浏览器本地处理。

工具代码会在浏览器中处理所选文件和输入内容,不会将其提交给 TOOLGRID 的处理接口。 TOOLGRID 只衡量工具使用情况,不记录你输入的内容。

  • 不上传工具输入至 TOOLGRID
  • 不登录
  • 复制前先检查

Loading tool…

浏览器内运行

这个工具能做什么

01

Resize a video locally to 1920, 1280, 854, 640, or a custom even width. Height is calculated to preserve the source aspect ratio.

02

Choose a width that matches the delivery surface, encode, then inspect text sharpness and aspect ratio.

03

Processing starts only after you choose files and press the action button. The media engine is not preloaded on the homepage or ordinary tool pages.

代表性任务

这个工具适合解决什么问题

Create a 720p-width copy

Scale a large capture to 1280 pixels wide before web delivery.

使用边界

依赖结果前需要检查什么

  • Upscaling does not add source detail.
  • The output is re-encoded and can change color or compression characteristics.
Mediabunny documentationffmpeg.wasm documentationMDN WebCodecs API
继续当前流程下一步常用工具

如果还需要校验、转换或复用结果,可以继续打开相近的浏览器本地工具。

当前结果
产物处理后的文件动作下载结果
Crop VideoVideo Tools本地产物处理后的文件动作下载结果立即本地使用→Compress VideoVideo Tools本地产物处理后的文件动作下载结果立即本地使用→Rotate VideoVideo Tools本地产物处理后的文件动作下载结果立即本地使用→

如何使用

01
01Choose the video file from your device.
02Review the detected media facts and task-specific controls.
03Start the local job, watch progress, or cancel to terminate the worker.
04Play or inspect the downloaded result before replacing the source.

使用场景

Create a 720p-width copy

Scale a large capture to 1280 pixels wide before web delivery.

Continue the workflow

Choose a width that matches the delivery surface, encode, then inspect text sharpness and aspect ratio.

使用技巧

  1. 01
    Start with a short representative file

    Confirm codec and browser support before committing device time to a long source.

  2. 02
    Keep the source

    Every output is a new file. Retain the original until you have completed a full playback check.

常见问题

02
Is my media uploaded to TOOLGRID?

No. The selected files are written into an in-browser worker file system. The self-hosted encoder assets are downloaded separately, but TOOLGRID does not receive the selected media for processing.

Why can a local media job be slow?

The compatibility encoder runs single-threaded in WebAssembly and is limited by device CPU, available memory, source duration, resolution, codecs, and browser behavior.

What should I verify in the result?

Check playback, duration, seeking, video and audio synchronization, expected tracks, visual quality, and actual file size in the browser or player used by your audience.

相关工具

03
本地

Crop Video→立即本地使用No TOOLGRID input upload

Crop a video to a rectangular pixel region and re-encode the visible area.

处理后的文件下载结果

本地

Compress Video→立即本地使用No TOOLGRID input upload

Re-encode a video with an explicit quality preset and measured before/after size.

处理后的文件下载结果

本地

Rotate Video→立即本地使用No TOOLGRID input upload

Rotate video pixels 90° clockwise, 90° counterclockwise, or 180°.

处理后的文件下载结果