Fotools
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Video Speed Adjustment Tool

Speed Settings

0.25x 0.5x 1x 2x 4x

Video Preview

Please select a video file

Supports MP4, WebM, MOV, AVI, MKV, and more

Instructions:

Supported Video Formats:

  • MP4: The most popular video format with the best compatibility
  • WebM: Web video format with high compression efficiency
  • MOV: Apple QuickTime format
  • MKV: Matroska multimedia container format
  • AVI: Windows video format

Speed Adjustment Range:

  • 0.25x - 1x: Slow motion effect, ideal for analyzing detailed movements
  • 1x: Original speed
  • 1x - 4x: Fast motion effect, suitable for quick viewing or creating time-lapse

Features:

  • Supports speed adjustments from 0.25x to 4x
  • Real-time Video Preview (Preview Different Speed Effects)
  • Automatically Adjust Audio Speed to Maintain Synchronization
  • Adjustable Output Quality and Resolution
  • Supports Multiple Video Output Formats

Use Cases:

  • Create Slow Motion Video Effects
  • Create Fast Forward/Time-lapse Videos
  • Speed Control for Educational Videos
  • Video Rhythm Adjustment
  • Audio and Video Synchronization Adjustment

Steps:

  1. Select the Video File to Adjust Speed
  2. Use the Slider or Shortcut Buttons to Choose the Target Speed
  3. Click the "Preview Speed" Button to Preview the Effect in the Player
  4. Select Output Format, Quality, and Resolution
  5. Click the "Start Speed Adjustment" Button
  6. Wait for Processing to Complete, Then Download the Adjusted Video

Tips:Speed adjustment requires re-encoding the video; processing time depends on video size and speed settings. Slowing down will lengthen the video duration, speeding up will shorten it.