PDFCure
所有工具

Change Video Speed

Speed up or slow down a video, 0.25× to 4× — in your browser.

Select a video file

Speed up or slow down a video — 0.25× to 4×. Runs in your browser.

點擊選擇，或將檔案拖曳至此

如何 Change Video Speed

  1. 1

    Add your video

    Drop in the clip you want faster or slower.

  2. 2

    Set the speed

    Drag the slider from 0.25× to 4×. Tick mute if the pitch shift bothers you.

  3. 3

    Apply and download

    Click Change speed; the video is re-recorded at the new rate.

Related PDF tools

Trim VideonewCut a video down to just the part you want, in your browser.Crop VideonewCrop a video to a square, 9:16 or 16:9 for Instagram, TikTok, Reels or YouTube.Rotate VideonewRotate a video 90, 180 or 270 degrees — fix a sideways phone clip.Change Audio SpeednewSpeed up or slow down an audio file, 0.5× to 2× — in your browser.

Change Video Speed — 常見問題

Does the audio pitch change?+

Yes — this changes speed by playing faster or slower, so the pitch shifts with it. Tick 'mute' to drop the audio instead.

Is my video uploaded?+

No. It's re-recorded from a canvas in your browser.

How fast/slow can it go?+

0.25× (quarter speed) to 4× (four times). The processing time scales with the output length.

What format do I get?+

MP4 or WebM depending on your browser.

你們會把我的檔案上傳到伺服器嗎？+

不會——這裡的每個工具都完全在你的裝置上處理檔案，不會向伺服器上傳任何內容。唯一的例外是 AI 工具，它們會把擷取的文字（而非檔案本身）傳送給 Claude 來完成工作。

有檔案大小限制嗎？+

我們沒有人為設下限制，但由於處理過程在你的瀏覽器中進行，非常大的檔案（超過 500MB 或 1000 頁）會受你裝置記憶體的限制，而非我們的限制。