Speed Up Video Online Free — Change Video Speed
Speed up or slow down videos online for free. Create timelapse or slow motion effects. Audio pitch preserved.
Access and pricing
Supported tools include 5 free on-device uses per day, shared across eligible tools. On compatible devices, guest access needs no sign-in. Signed-in users also get 5 daily eligible on-device uses. AI and cloud processing use credits separately.
New accounts can claim 20 welcome credits once. Eligible offers in MiOffice can earn up to 80 reward credits; offer conditions apply.
Starter costs $6.99/month and includes 250 credits at each paid renewal plus unlimited eligible local processing. Unused credits roll over. The $2.99 Day Pass covers 24 hours of eligible local processing; AI and cloud credits are separate.
Compare tools using a representative file and inspect the export. Check supported formats, device compatibility, processing location and the displayed cost before starting. This article is published by MiOffice; consider its recommendations with that affiliation in mind.
Access and pricing updated October 30, 2026. This editorial update does not indicate a new test run.
Speeding up or slowing down video is essential for content creators, educators, and anyone who works with video. Create time-lapses from long recordings, slow down action shots for dramatic effect, or speed through boring sections of tutorials.
MiOffice changes video speed in your browser using FFmpeg WebAssembly with audio pitch preservation. No upload, no watermark, Guest access on supported tools; AI requires sign-in and credits.
How to Speed Up Video
- 1
Open the Speed Changer
Go to the video speed changer.
- 2
Choose Your Speed
Upload your video. Select speed: 0.25x (slow motion) up to 4x (fast forward).
- 3
Download
Click process. Your speed-adjusted video downloads as MP4 with preserved audio pitch.
Speed Options Explained
| Speed | Effect | Best For | Duration Change |
|---|---|---|---|
| 0.25x | Ultra slow motion | Action shots, sports | 4x longer |
| 0.5x | Half speed | Dance tutorials, detail shots | 2x longer |
| 2x | Double speed | Tutorials, cooking videos | Half duration |
| 4x | Timelapse effect | Setup processes, travel | Quarter duration |
Use Cases
- --Tutorial speedup: Speed through repetitive steps at 2x while keeping key parts at normal speed.
- --Timelapse creation: Turn a 30-minute sunset recording into a 2-minute clip at 4x.
- --Slow motion: Slow down sports or action footage to analyze technique or create dramatic effects.
- --Social media: Speed up cooking or craft videos to fit within platform time limits.
Privacy
All processing happens in your browser using FFmpeg WebAssembly. Your video files stay on your device. No server upload, no data retention.
Process Your Video Now
MiOffice AI is an AI-powered digital workspace studio. Create, edit, convert, compress, collaborate, and share — video, audio, images, documents, scanning, notes, screen sharing, and file transfer. the full MiOffice catalog, all in one place.
Frequently Asked Questions
Is the audio pitch preserved when speeding up?
What speed options are available?
Can I speed up just part of a video?
Jay Padimala
CEO & Founder
Jay Padimala is CEO and Founder of MiOffice, a product of JSVV SOLS LLC.
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