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Speed Up a Video / Timelapse

Fast-forward a long clip to 2×–4× for a timelapse feel.

无需登录文件保持私密

将文件拖放到此处或点击浏览

MP4, WebM, MOV, AVI, Video 无文件大小限制

浏览文件

你的文件永远不会离开你的设备。所有处理都在你的浏览器中本地进行。

Speed up or slow down a video (0.25×–4×), with pitch-corrected audio. Runs entirely in your browser.

timelapse tips

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2×–4× turns a long recording into a quick, watchable clip.

📉

Faster playback also means a shorter, smaller output file.

🎙️

Keep audio pitch-corrected on if there's narration you still want intelligible at 1.5–2×.

🔒

Runs locally in your browser.

选择文件

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

处理

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

下载

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓完全免费——永远没有隐藏费用

✓无需账号、邮箱或登录

✓文件永远不会离开你的设备

✓绝无文件大小限制

✓所有输出均无水印

Make a Slow-Motion Video

Slow a clip down to 0.25×–0.75× for dramatic slow

Speed Up a Tutorial or Lecture

Make a recorded lesson quicker to get through.

Speed-Ramp a Clip for Social

Speed a clip up to fit a short-form slot and grab

Slow a Video Down to Analyse It

Slow footage to study a movement or moment frame b