Video Speed

Free online video speed tool supporting 0.25x~4x speed adjustment while maintaining pitch. Powered by the Video Editor, pure browser-side processing with no server upload.

Tool Guide

Introduction

The Video Speed tool is a dedicated feature of the Video Editor that supports 0.25x~4x speed adjustment while maintaining original pitch (audio won't sound chipmunk or deep). Powered by FFmpeg.wasm, all processing happens locally in your browser.

How to Use

Step 1: Click the upload area or drag a video file.

Step 2: Check the "Speed" feature below the video preview.

Step 3: Adjust the speed factor (0.25x~4x).

Step 4: Select output format (default MP4).

Step 5: Click "Start Edit" and wait for processing, then click "Download Video".

Use Cases

- Create slow motion videos (0.25x~0.5x)

- Create timelapse fast-forward videos (2x~4x)

- Adjust video duration for platform requirements

FAQ

Q: Will audio pitch change after speed adjustment?

A: No. Both setpts and atempo filters are used to maintain the original pitch.

Q: What are the minimum and maximum speeds supported?

A: 0.25x (4x slower) to 4x (4x faster).

Video Editor

Free online video editor supporting trim, crop, rotate, flip, speed adjustment, resolution scaling, and volume control. Combine multiple editing operations, output to MP4, Web M, MOV and more. Pure browser-side processing with no server upload.

Video Compress

Free online video compression tool. Supports MP4/AVI/MPG/MOV/FLV/3GP/WEBM/MKV/WMV format compression without changing resolution. Reduces file size by adjusting video bitrate. Pure browser-side processing.

Video Merge

Free online video merger. Merge multiple video files online, drag to reorder. Pure browser-side processing.

Video Trim

Free online video trim tool to quickly cut video segments. Powered by the Video Editor, pure browser-side processing with no server upload.

Video Crop

Free online video crop tool to remove unwanted areas from your video frame. Powered by the Video Editor, pure browser-side processing with no server upload.

Video Rotate

Free online video rotation tool supporting 90° clockwise, 180°, and 90° counterclockwise. Powered by the Video Editor, pure browser-side processing with no server upload.