Change video playback speed from 0.25x to 4x. Create slow motion effects, time-lapse videos, or speed ramps. Audio pitch preserved automatically with intelligent adjustment.
Speed up or slow down any video with the Video Speed Controller. Set a custom playback rate from 0.25x to 4x, preview the result in real time, and export the modified video. The tool adjusts audio pitch correction automatically so sped-up dialogue remains intelligible, and slowed-down audio doesn't become an unusable low drone. Useful for creating time-lapses, slow-motion effects, or simply watching content at your preferred pace before exporting.
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Trim and cut videos precisely with frame-by-frame scrubbing. Set start/end points visually, preview clips in real-time, and export trimmed videos instantly. No upload required - runs 100% in browser.
Convert videos between MP4, WebM, OGG, MOV, AVI, and MKV formats. Device presets for YouTube, Instagram, TikTok, iPhone, Android. Quality options from fast to high quality encoding.
Merge multiple video clips into one seamless video. Drag-and-drop reordering, preview before export, timeline visualization. Combine videos in any format with automatic re-encoding.
A 3-minute tutorial drags and you want a 2× sped-up version for a quick recap.
Input
tutorial.mp4 · 2× speed · drop/keep audio pitch
Output
A 1:30 video at 2×, optionally pitch-corrected audio
Frames are retimed and audio is time-stretched, with optional pitch preservation so narration stays natural rather than chipmunked. Speed ramps are useful for both recaps and slow-motion emphasis.
Speed up or slow down any video with the Video Speed Controller. Set a custom playback rate from 0.25x to 4x, preview the result in real time, and export the modified video. The tool adjusts audio pitch correction automatically so sped-up dialogue remains intelligible, and slowed-down audio doesn't become an unusable low drone. Useful for creating time-lapses, slow-motion effects, or simply watching content at your preferred pace before exporting.
Speed up long recordings like construction progress, cloud movement, or cooking processes into watchable time-lapses.
Slow down action footage to reveal details invisible at normal speed, sports plays, dance moves, science experiments.
Speed up or slow down recorded tutorials to match the viewer's preferred learning pace before sharing.
The visual quality per frame is preserved. Speeding up simply shows fewer frames per second of real time, while slowing down may use frame interpolation to maintain smoothness.
Audio pitch is corrected automatically. At 2x speed, voices sound faster but maintain their natural pitch rather than becoming high-pitched.
The tool applies a uniform speed to the entire video. For variable speed, trim the video into sections, adjust each separately, then merge them.
Video is decoded and re-encoded on your own device. Large files never leave your machine.