How to change the speed of a video
- Add your video. Drag an MP4, MOV, WebM or MKV file onto the box above, or tap it to choose a video from your device.
- Choose a speed. Pick one of the presets from 0.25× to 4×, or choose Custom and type any speed between 0.1× and 10×, such as 1.1 or 0.8. The new length of the video is shown straight away.
- Keep or remove the sound. Under Sound, choose Keep sound to change the audio speed along with the picture, or Remove sound for a silent result.
- Press Change speed. On the first run the converter downloads once (about 31 MB). A progress bar follows the work and you can cancel it at any time.
- Watch and download. Play the result on the page, compare the file size with the original, and press Download MP4 to save it.
Features
- Eight quick presets – 0.25×, 0.5×, 0.75×, 1.25×, 1.5×, 2×, 3× and 4× – plus any custom speed from 0.1× to 10×.
- Natural-sounding audio: the sound is time-stretched without changing its pitch, in several steps for big speed changes.
- Optional silent output when you only need the picture.
- Universal MP4 result with H.264 video and AAC audio.
- New length preview before you start, and a before-and-after file size when it's done.
- Live progress, Cancel button and friendly errors, including a clear note when the video has no sound track.
Why use Fileora to change video speed
Video editors that can change speed are often large downloads or paid apps, and online speed changers usually upload your video to their servers first. Fileora does the whole job in your browser. There's no account, no watermark on the result and no file size limit other than your device's memory.
It's a quick way to turn a long screen recording into a snappy tutorial, speed up a cooking or DIY clip, slow down a sports move to study technique, or make a relaxing slow-motion shot of waves or rain. Because the file never leaves your device, it is also a safe choice for family videos and private recordings.
Speed, length and smoothness explained
Speed and length are linked: at 2× a one-minute video lasts 30 seconds, and at 0.5× it lasts two minutes. The frame rate of the result stays the same as the original, so speeding up simply skips frames, which always looks smooth. Slowing down repeats frames instead, so fast movement can look a little jerky at 0.25×; the smoothest slow motion comes from footage recorded in a phone's slow-mo mode.
If you only need part of the video at a new speed, cut it out first with Trim Video. To share a short sped-up moment as a looping animation, turn it into a GIF with Video to GIF, and if the new file is too big to send, shrink it with Compress Video.