Speed Up or Slow Down a Video

Speed up a video or make slow motion online for free: set 200%, 400% or 50%, change one part only, and keep the sound in sync. Runs in your browser.

Open the tool — free

Make a time-lapse, skip the boring part or create dramatic slow motion. Change a clip's speed in seconds — free, in your browser.

How to speed up a video

1. Click Open the tool above and import your video.
2. Drag it onto the timeline and select it.
3. Choose Clip ▸ Speed/Duration… (⌘R / Ctrl+R).
4. Enter 200 for twice as fast, 400 for four times — or 50 for half-speed slow motion.
5. Click Export.

You can also set Speed in Effect Controls ▸ Time, with quick buttons for 25 %, 50 %, 100 %, 200 % and 400 %.

Change the speed of one part only

Press ⌘K (Ctrl+K) to split the clip at the start and end of the part, then change the speed of that piece only. For a smooth speed ramp, see Freeze frames, reverse and speed ramps.

Tips

• Sped-up speech sounds high-pitched. Mute it, or replace it with music.
• Slow motion looks smoothest from footage filmed at 60 fps or more.
• Combine a slow-motion moment with Clip ▸ Add Frame Hold for a freeze frame.

Questions

How do I make a video 2x faster?

Set the speed to 200 % in Clip ▸ Speed/Duration….

Can I speed up a video on my phone?

Yes. Tap the clip, open the Edit sheet and use the speed buttons.

Related: reverse a video.