AI-Powered
Video Editing
Product
Solutions
Free Tools
Article to Video
Turn articles into MP4
Script to Voiceover
Turn text into AI audio
Transcript to Help Article
Clean docs from transcripts
Video Trimmer
Cut and trim video clips
Subtitle Creator
Generate captions from audio
Transcript Extractor
Get text from any video
Video Watermark
Add logo or text overlay
Video Cropper
Resize and crop frames
AI Video Reframer
Auto crop with subject tracking
Video to FAQ
Turn video into Q&A
Video to Help Article
Auto-generate help docs
Video to Quiz
Generate quizzes from videos
Subtitle Translator
Translate captions instantly
Background Music
Add royalty-free tracks
Thumbnail Generator
Create click-worthy thumbs
Description Generator
SEO-optimized descriptions
AI Video Trimmer
Smart cuts, auto highlights
Video Merger
Combine multiple clips
Before & After Video
Side-by-side comparisons
Coming Next Video
PiP teaser into next clip
Video Rotator
Flip or rotate footage
Speed Changer
Speed up or slow down
Format Converter
Convert between formats
Video Compressor
Shrink file size, keep quality
Video to GIF
Turn clips into animated GIFs
Video Fade In/Out
Smooth intro and outro
Video Summary
AI-powered key takeaways
Video FAQ Generator
Extract FAQs from video
Image Annotator
Mark up screenshots
Video Annotator
Shapes, arrows & text on video
Audio Extractor
Extract audio from video
Subtitle Burner
Burn captions into video
PDF to Video
Convert PDF to video
PPTX to Video
Turn slides into video
Keynote to Video
Convert Keynote to video
Presentation to Video
PDF, PPTX, or Keynote
Google Slides to Video
Turn Google Slides into video
PowerPoint to Video
Convert PPT to video
Video Lighting
Brightness, contrast & more
Free Online Video Speed Changer
Upload a video. Select regions. Set different speeds for each - download the result instantly.
Drop your video here
or click to browse
See It in Action
How It Works
Three simple steps
Upload your video
Drop a video file or paste a link. Supports MP4, MOV, and WebM.
Mark speed regions
Select sections on the timeline and assign playback speeds from 0.2x to 5x.
Download result
Your speed-adjusted video is ready to download in seconds. Done.
Upload your video
Drop a video file or paste a link. Supports MP4, MOV, and WebM.
Mark speed regions
Select sections on the timeline and assign playback speeds from 0.2x to 5x.
Download result
Your speed-adjusted video is ready to download in seconds. Done.
Why Use This Tool
Region-based speed control
Set different speeds for different parts of your video. Slow down key moments, speed up the rest.
Audio preserved
Audio pitch is adjusted automatically to match the new speed. No chipmunk voices.
Fast cloud processing
Videos are processed server-side in seconds, not minutes.
Multiple formats
Works with MP4, MOV, and WebM files up to 500 MB.
Frequently Asked Questions
You can set any region from 0.2x (5 times slower) to 5x (5 times faster).
Audio is automatically adjusted to match the new speed. Pitch is corrected so voices sound natural.
Yes. Add multiple speed regions on the timeline, each with its own speed setting.
MP4, MOV, and WebM files up to 500 MB.
Yes. You can try the tool without an account. Sign in to save your results.
Need more from your videos?
Vidocu turns videos into subtitles, voiceover, translations, and help articles — automatically.