Turn a long clip into something watchable, or slow a moment down to see what happened.
Pick anything from half speed to four times — the sound comes along and stays in sync.
By ShinobiTools Team · Last updated: September 2026
Every converter here is free, full size, no account. Photos convert in your browser and never leave it, except camera RAW files and SVG tracing. Those, like video, audio and e-books, need our server — and we delete them right after.
Speeding up video is easy; keeping the audio with it is where most tools fall over, and you end up with a chipmunk voice or sound that drifts a second out by the end. Here a video speed up stretches the audio with a separate filter that keeps the audio pitch where it was, in steps if the change is large, so a doubled clip still sounds like the same person talking.
This video speed changer runs on our server, so it works in any browser, phone included, with nothing to install; it is free, with no watermark and no daily limit, for files up to 1200 MB and 20 minutes. The Clideo video speed changer and Ezgif do the same job with their own limits. The difference from a player's playback control is that the new speed is baked into the file, so it plays at that pace everywhere: the permanent version of a fast forward video button, rather than holding a key to forward a video while you watch. It is one speed change for the whole video clip, so as a video speed controller it is simple: speed video up or slow it down, from a phone too, and change video speed online as often as you like. Searching for how to speed up video in YouTube usually ends here: YouTube's player only changes how you watch and Studio has no speed control, so speed your own file up here and upload the result.
Half speed for slow motion of something quick. 1.5× for a talk that drags. 2× speed for a screen recording or a lecture. 4× turns a long static shot into a short one, a rough time-lapse; at that speed speech is hard to follow, so it's for footage without talking. For even faster, run the result through a second time.
Changing the speed re-encodes both picture and sound, which a browser can't do. Your file is uploaded to our machine, processed there, and deleted immediately afterwards. Limits: 1200 MB and 20 minutes on the free tier.
Need to cut it down first rather than speed it up? Trim video removes the parts you do not want. Want it slower, or played backwards instead? Reverse video does that. Ready to shrink the file afterwards? Compress video hits an exact size.
Drop it in, pick how much faster, and download the result; twice as fast is the usual choice. It works online without an app, on a computer or a phone, and an MP4 goes through the same way as any other supported format.
Yes. It is sped up alongside the picture and pitch-corrected, so it stays in step and voices don't go squeaky.
Yes, pick half speed. Note that a normal 30 fps video will look slightly choppy slowed down — real slow motion needs a high-frame-rate recording.
A faster video is shorter, so yes, usually quite a bit.
Yes. No account, no watermark or logo added, and no daily limit.
MP4, MOV, WebM, MKV and AVI, plus a GIF. You get an MP4 back whatever you put in.
Open this page in Safari on an iPhone or Chrome on Android, pick the video from your camera roll, choose the speed and download. There is no app to install and no cost.
Presets for 0.5× (slow motion), 0.75×, 1.5×, 2× and 4×, or any value of your own between 0.25× and 4×. Anything under 1× slows the clip down, anything over 1× speeds it up.
One pass goes up to 4×. For 10× or more, run the result through again: 4× then 2.5× makes 10×. Or trim the clip first so there is less to speed up.
Just a speed editor: one speed for the whole clip, baked into the file. It doesn't cut or add music. For speed ramps, slowing one moment and speeding up another, you need a timeline in video editor tools such as Premiere or CapCut.
That is exactly what this tool does — it bakes the new speed into the file itself, so it plays at the new speed everywhere, not just in one player with a speed control.
Pick the 2x preset and download, with no slider to misjudge. A 2x video plays in half the time and keeps its sound in sync.
Pick 4× and download; for an even faster fast-forward effect, run the result through again (4× twice makes 16×). It works the same on a phone recording as on any other clip. For a real time lapse, repeat until it is fast enough.
Instagram's Reels editor has its own speed control. To pick an exact speed, or to use the same clip elsewhere too, speed it up here first. That is how to speed up a video for Instagram at a value the app does not offer, how to speed up videos for Instagram in a batch, and how to speed up video Instagram Stories can use. For how to speed up Instagram video from a phone: open this page in the phone's browser, pick the clip and download it; how do you speed up a video on Instagram after that? Add the downloaded result to your Story or post in the app.
YouTube's player only changes how you watch, and YouTube Studio's editor has no speed control. So how do you speed up a video on YouTube for everyone? Change the file itself: speed it up here, then upload it. How to speed up YouTube videos you already posted, or how to speed up a YouTube video of yours from years ago, works the same: download your own upload from YouTube Studio, speed it up here and upload it as a new video. How to speed videos up on YouTube in bulk is one clip at a time, and how to speed up videos on YouTube Shorts (or how to speed up video on YouTube in any other format) is the same, as long as a Short stays under three minutes.
Snapchat has speed filters you can swipe to on a recorded snap. For a clip from your camera roll, speed it up here first and post the result; that's how to speed up Snapchat videos made outside the app, and how to speed up Snapchat video footage the filters aren't offered for. It's also how to speed up videos on Snapchat that are longer than a single snap.
In Premiere Pro: right-click the clip, Speed/Duration. How to speed up a video in After Effects: Layer, Time, Time Stretch. How to speed up videos in After Effects in bulk: the same per layer. To speed up video in After Effects without a stretch, use Time Remapping; to speed up video after effects-style ramps need that too. How to speed up video after effects users ask about most is Time Stretch; how to speed up video in After Effects exactly: type the percentage. If you don't have either installed and only need one clip faster, this page does it without an editor.
No: to speed up song files you need an audio speed changer, and this tool needs a video track. An MP3 comes back with "That file has no playable video track". There's no audio speed tool on this site yet.
No. A speed extension only changes how you watch in your own browser, and the apps that exist for every phone do what this page does in a browser tab: bake the new speed into the file.
Ezgif speed tools work on GIFs and short clips; ezgif speed up video has a smaller upload limit. Ezgif speed up for a GIF works here too. Speed up footage up to 1200 MB free.
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