Video Speed, Reverse & Loop

Video Speed, Reverse & Loop changes how a clip plays. Pick a video, choose a speed from a quarter of normal up to four times faster, and decide which way it runs: forwards, backwards, or as a boomerang that plays forwards and then back. Repeat the result up to ten times in a row for a loop you can post or send.

Most free speed tools either throw the sound away or leave it sounding like a cartoon. Here the sound is re-timed with the picture and, by default, time-stretched so voices keep their normal pitch: a talk at 1.5× still sounds like the speaker, just quicker. If you want the playful tape effect instead, choose “Pitch follows speed”, or mute the sound altogether.

You can change the whole video or only a part of it: drag the handles on the filmstrip to pick the stretch you want, and press “Play part” to hear and see it at the new speed before you make anything. The result is a fresh MP4 (or WebM), made by your own browser. Your video never leaves your device, there is no sign-up and no watermark.

1. Tap “Choose a video” or drop one onto the box.
2. Drag the handles to choose the part to change, or leave the whole video selected.
3. Pick a speed with the slider or a preset such as 0.5× or 2×, then press “Play part” to preview it.
4. Choose Forwards, Backwards or Boomerang, how many times it repeats, and what happens to the sound.
5. Press “Make video”, watch the result on the page, then press “Download video”.

• Any speed from 0.25× to 4× in small steps, plus one-tap presets.
• Pitch-preserving time-stretch for the sound, written for this tool, so voices stay natural at any speed.
• Optional “Pitch follows speed” tape effect, or a silent result.
• Backwards and boomerang playback, with the sound reversed to match.
• Repeat the result up to ten times for a seamless loop.
• Live preview: “Play part” plays your chosen part at the new speed.
• Saves as MP4 (H.264) or WebM (VP9), and can shrink the picture to 1080p, 720p or smaller.
• Progress bar with a Stop button; the finished video plays right on the page.

• For smooth slow motion, start with footage filmed at 60 frames per second or more. Slowing normal 30 fps video to 0.25× shows each frame for longer, so movement looks steppy.
• Speeding up drops the extra frames, so a 4× video stays a normal, light file rather than a flood of frames.
• Lectures and tutorials are easiest to follow at 1.25× to 1.5× with “Keep the pitch” on.
• Backwards and boomerang work on parts of up to 60 seconds; trim to the best moment first for the snappiest loop.
• Choosing a smaller size such as 720p makes long videos much quicker to process on a phone.