BigQTools

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調整影片解析度

縮放到 1080p、720p、480p 或自訂尺寸。

把a video拖到這裡

MP4, MOV, MKV, WEBM, AVI, M4V… · up to 100 MB per file · 也可以用 Ctrl + V 貼上檔案

檔案在 2 小時后刪除，你也可以下載后立即刪除。

調整影片解析度的使用方法（3 個步驟）

  1. Upload the video

    Choose a video from your device, Google Drive or a direct link; MP4, MOV, MKV and more are supported.

  2. Choose the size

    Select 1080p, 720p (default), 480p or 360p. With Custom, enter a width or a height and leave the other empty to keep the ratio.

  3. Resize and download

    Press “Resize video”, download the MP4, save it to Google Drive or continue with Compress video.

功能特色

Resize video helps when a website or learning platform only accepts 720p uploads, or when a 4K phone video stutters on an older computer. Pick a preset or enter your own width or height; the aspect ratio is always kept and dimensions are rounded to even numbers for compatibility.

  • Presets for 1080p, 720p, 480p and 360p.
  • Custom size in pixels: enter just a width or a height.
  • Aspect ratio always kept, dimensions rounded to even numbers.
  • Audio is preserved and the result is an MP4 file.
  • Results get a “-doi-kich-thuoc” suffix, e.g. “intro-doi-kich-thuoc.mp4”.

常見問題

Will upscaling a small video to 1080p make it sharper?

No. Upscaling fills in pixels from the existing picture without adding detail, and the file gets bigger.

Why did my width change by one pixel?

Video encoders need even dimensions, so odd values are rounded to the nearest even number.

Does resizing reduce file size?

Lowering the resolution usually cuts the size a lot. If a small file is the main goal, Compress video adds quality levels too.

Should I enter both width and height?

Enter only one value to keep the exact proportions. Leave the other field empty and it is calculated from the video’s ratio.

壓縮影片 把影片变小，方便LINE、電子郵件和社群平台傳送。 剪輯影片 只保留需要的片段，精確到格。 轉换影片 把影片轉成 MP4、WebM、MOV、MKV 或 AVI。 影片轉 MP3 把影片的聲音儲存为 MP3、M4A 或 WAV。 合併影片 把多個片段拼成一個連續影片。 影片轉 GIF 把短影片做成動態 GIF。