Video Slow Down

Slow down video playback (0.25x to 0.75x) while maintaining audio pitch

Click to upload file or drag and drop file here

Maximum file size: 100MB Supported formats: video/*

Key Facts

Category
Images, Audio & Video
Input Types
file, select
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

The Video Slow Down tool allows you to easily decelerate your video playback speed to 0.25x, 0.33x, 0.5x, 0.66x, or 0.75x while preserving the original audio pitch. Simply upload your video file, select your preferred slow-motion factor and output format, and download the high-quality slowed-down video without any complex editing software.

When to Use

  • •When you need to analyze fast-moving action in sports, dance, or scientific recordings frame-by-frame.
  • •When creating dramatic slow-motion sequences for social media videos or tutorials without losing audio pitch quality.
  • •When transcribing spoken audio or studying pronunciation from a video by slowing down the speech rate.

How It Works

  • •Upload your video file (up to 500MB) in any standard video format.
  • •Select your desired slow-down factor, ranging from 0.25x (quarter speed) to 0.75x (three-quarters speed).
  • •Choose your preferred output format, such as MP4, WebM, MKV, or keep the original format.
  • •Click the process button to generate and download your slowed-down video with pitch-corrected audio.

Use Cases

Sports analysis: Slowing down athletic movements or game footage to study technique and form.
Educational tutorials: Decelerating complex software demonstrations or physical crafts so viewers can follow along easily.
Content creation: Adding dramatic slow-motion effects to b-roll footage for vlogs and social media reels.

Examples

1. Analyzing a Golf Swing in Slow Motion

Golf Coach
Background
A golf coach wants to analyze a student's rapid swing to point out minor posture adjustments.
Problem
The swing happens too quickly in real-time to analyze the wrist angle and club path accurately.
How to Use
Upload the recorded swing video, select the '0.25x (Quarter Speed)' option, choose 'MP4' as the output format, and process the video.
Example Config
Speed: 0.25x, Output Format: MP4
Outcome
The coach receives a smooth, quarter-speed video where every phase of the swing is clearly visible, with the audio pitch preserved.

2. Slowing Down a Fast-Paced Cooking Tutorial

Home Cook
Background
A home cook is trying to replicate a complex knife technique from a fast-paced culinary video.
Problem
The chef's hands move too quickly to follow the exact chopping pattern and finger placement.
How to Use
Upload the cooking tutorial clip, select the '0.5x (Half Speed)' option, and choose 'Keep original format' for the output.
Example Config
Speed: 0.5x, Output Format: original
Outcome
The video plays at half-speed, allowing the cook to easily follow the knife movements while still clearly understanding the chef's spoken instructions.

Try with Samples

audio, video, file
Video Samples
Sample video files in different formats and orientations
title token video
video
Video AV1 Samples
Sample video files encoded in AV1 format
title token video
video
Video H.264 Samples
Sample video files encoded in H.264 (AVC) format
title token video
video
Video H.265 Samples
Sample video files encoded in H.265 (HEVC) format
title token video
video

Related Hubs

Audio Encoding and Format Conversion Tools
Compare audio format conversion, bitrate changes, sample-rate conversion, codec swaps, and export tools in one hub for delivery and archive workflows.
Video-to-Audio and Animation Conversion Tools
Compare tools that turn video into audio, extract video streams, and convert between short-form video and animated image formats in one hub.
Audio Editing and Cleanup Tools
Compare audio trimming, silence removal, fades, mixing, and denoise tools in one hub for podcast, voiceover, and music cleanup workflows.
Video Preview, Extraction, and Subtitle Tools
Compare video preview generation, stream extraction, audio extraction, subtitle translation, and quick flip tools in one hub for lightweight video prep workflows.

FAQ

Will the audio pitch change when I slow down the video?

No, the tool automatically maintains the original audio pitch so the sound does not become distorted or unnaturally deep.

What video formats are supported for upload?

You can upload any standard video file, and choose to output it as MP4, WebM, MKV, or keep its original format.

Is there a file size limit for the video?

Yes, the maximum supported video file size is 500 MB.

What slow-down speeds can I choose from?

You can select from 0.25x (quarter speed), 0.33x (third speed), 0.5x (half speed), 0.66x (two-thirds speed), or 0.75x (three-quarters speed).

Does this tool require any software installation?

No, this is a web-based tool that processes your video directly in your browser without requiring any software installation.

API Documentation

Request Endpoint

POST /en/api/tools/video-slow-down

Request Parameters

Parameter Name Type Required Description
videoFile file (Upload required) Yes -
speed select Yes -
outputFormat select No -

File type parameters need to be uploaded first via POST /upload/video-slow-down to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-video-slow-down": {
      "name": "video-slow-down",
      "description": "Slow down video playback (0.25x to 0.75x) while maintaining audio pitch",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=video-slow-down",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]