Tool StudioMake a video faster or slower - speed it up, make slow motion, keep voices natural, and see the result before you start
Drop a video here, or click to browse
MP4, MOV, MKV, WebM and more. Speed it up or slow it down.
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Drop the video on the page or click to browse. MP4, MOV, MKV, WebM, AVI and WMV all work, up to 100 MB.
Choose the speed
Use a quick button or the slider, from 0.25× to 4×. The page shows how long the new video will be, and the preview plays at the new speed.
Choose what happens to the sound
Keep the pitch so voices stay natural, let the pitch follow the speed, or remove the sound.
Make the new video and download it
Press the button. The video is made on ToolStudio's server and appears with a player and a Download button.
Add a video, choose a speed, and download the new video. The page shows how long it will be, and a preview plays your video at the new speed before anything is uploaded.
The picture size and the frame rate stay what they were. When a video is slowed down, pictures are repeated; when it is sped up, pictures are dropped, so the new video plays smoothly anywhere. Slowing a video does not invent new pictures, so footage filmed at a high frame rate, such as 60 or 120 frames per second, makes the smoothest slow motion.
Making a video again at a new speed is too slow for a browser, so this tool works on ToolStudio's server: your video is uploaded for it and the files are deleted automatically afterwards. The preview plays on your own device. There is no account, no watermark and no limit on how many videos you make. Videos up to 100 MB can be added, and the server refuses a video that would take too long, counted at its new length, which in practice means about 3.5 minutes of 720p video or 1.5 minutes of 1080p video. Trim a longer one first.
Add the video, pick a speed with the quick buttons (0.5×, 0.75×, 1.25×, 1.5×, 2×, 3×) or the slider, and press Change the speed. The page shows how long the new video will be, and a preview plays your video at the new speed before anything is uploaded.
Choose a speed above 1×. At 2× the video plays twice as fast and is half as long; at 1.5× a 30-second video becomes 20 seconds. The sound is sped up with it, and Keep the pitch stops voices from sounding higher.
Choose a speed below 1×. At 0.5× the video plays at half speed and is twice as long; at 0.25× it is four times as long. Each picture stays on screen for longer, and the sound is slowed down with it.
Choose 0.5× or 0.25×. The result is smoothest when the video was filmed at a high frame rate, such as 60 or 120 frames per second, because there are more pictures to spread out; the frame rate of the new video stays what it was.
Slowing a video makes every picture last longer, so a video filmed at 30 frames per second looks steppy at a quarter speed, because there are only 30 different pictures for each second of the original. Footage filmed at 60, 120 or 240 frames per second slows down far more smoothly.
Choose a speed above 1×. If a clip plays at half speed, 2× brings it back to normal; if it plays at a quarter of normal, choose 4×, the fastest this page goes.
Anything from 0.25× (a quarter of the speed) to 4× (four times as fast), in steps of 0.05. The quick buttons are 0.5×, 0.75×, 1.25×, 1.5×, 2× and 3×. A speed of exactly 1× would leave the video as it is, so the button is switched off.
Make the new video, press Start over, add it again and speed it up again: 4× twice is 16×. Footage with fast movement, such as clouds or traffic, makes a good time-lapse from a longer recording.
The number says how many times as fast the video plays: 2× is twice as fast and 0.5× is half as fast. The new length is the old length divided by the speed, so 60 seconds at 2× is 30 seconds and 60 seconds at 0.5× is 2 minutes. The page works it out for you.
Yes. The sound is sped up or slowed down with the picture so they stay together. With Keep the pitch ticked, voices and music keep their own pitch; untick it and the pitch rises when the video speeds up and falls when it slows down, like a tape. In testing, a 440 Hz tone stayed at 440 Hz at 2× and 0.5× with the pitch kept, and moved to 888 Hz and 220 Hz without it.
Yes. Tick Remove the sound and the new video has no sound at all.
Yes. The picture size and the frame rate stay the same: pictures are repeated when slowing down and dropped when speeding up, so the new video plays smoothly anywhere. A 29.97 frames per second video stays at 29.97.
The video is made again at a high quality setting (H.264), at the same size, so it looks the same as the original. Slowing a video down does not make it sharper or smoother, because no new pictures are invented.
A longer video is a bigger file and a shorter one is smaller. In testing, a 15 MB clip became about 29 MB at half speed and about 10 MB at 4×. To make the file smaller afterwards, use Compress Video.
Yes. Making a video again at a new speed is too slow for a browser, so this tool works on ToolStudio's server: the video is uploaded for it and the files are deleted automatically afterwards. The preview on the page plays the file on your own device and uploads nothing.
Videos up to 100 MB can be added. The server also refuses a video that would take too long to make, counted at the new length, so a long video can be sped up more easily than slowed down. That is about 3.5 minutes of 720p video or 1.5 minutes of 1080p video; in testing, 30 seconds of 720p video could be slowed to a quarter speed. Trim a longer video first.
A few seconds to under a minute, plus your upload and download time, and longer for a slow-motion video because the new video is longer. In our testing, 30 seconds of 720p video took about 5 seconds at 2× and about 20 seconds at a quarter speed; a busy server can take longer.
MP4, MOV, MKV, WebM, AVI and WMV all work, up to 100 MB. The new video is always an MP4, which plays on nearly every phone, computer and website.
This page changes the whole video. To change one part, cut it out with Trim/Cut Video, change its speed here, and join the pieces back together with Merge Videos.
No. A browser extension changes how fast a video plays while you watch it. This tool makes a new video file at the speed you choose, which you can download, share or upload.
YouTube's own player has a playback speed setting for watching. This tool is for a video file you already have: add it here and it makes a new file at the new speed.
Open this page in Safari or Chrome, add the video from your photos or files, choose a speed, make the new video and download it to your phone.
Make the new video here and upload it as you would any video. The apps have speed controls of their own while you edit, but a file made here plays the same everywhere.
Yes. Attach the video to the chat and say what you want, for example make this twice as fast, or slow this down to half speed and remove the sound. The AI uses the same speeds and options as this page, and shows the new video with a player and a Download button.
Each video is a separate job. Download the new video, press Start over and add the next.
It is free, with no watermark, no account and no limit on how many videos you make.
Speed up or slow down songs, music and audio from 0.25x to 4x, with or without changing the pitch. Free, 100% in your browser.
Cut a video down to just the part you need. Pick a start and end point and download the trimmed clip. Files are processed securely and deleted automatically after conversion.
Combine multiple videos into one, even if they have different resolutions. Upload videos, reorder them, and download a single merged file. Files are processed securely and deleted automatically after conversion.
Reduce video file size with adjustable quality levels. Perfect for email attachments or upload limits. Files are processed securely and deleted automatically after conversion.