Speed Changer
Speeds up or slows down a video from 0.25× to 4×. The picture is retimed frame-exact; the audio keeps its pitch through WSOLA time-stretching, or can follow the speed tape-style, or be muted.
Drop a video to change its speed
0.25× to 4×. The sound goes through WSOLA so the pitch stays where it was, or it can follow the speed if you would rather it did.
Everything happens in this tab. The video is never uploaded.
Feed it from
Silence Cutter
Finds quiet stretches in a recording and removes them, with a threshold and padding setting.
Reverse Video
Plays a clip backwards, decoding one keyframe interval at a time so memory stays bounded, with the audio reversed sample by sample or muted. Refuses, with the numbers, when a keyframe interval would not fit the memory cap.
Video Editor
Assembles clips into a YouTube or Shorts upload in the browser: trim, order, transitions, a music bed and subtitles. Same-batch AI clips with hard cuts export losslessly without re-encoding.
Video Trimmer
Cuts a clip between two timestamps, copying streams without re-encoding when the cut is on a keyframe.
Next
These accept what this tool produces, so the result can go straight in.
Tempo & Pitch
Changes playback speed without shifting pitch, or transposes pitch without changing length.
Silence Cutter
Finds quiet stretches in a recording and removes them, with a threshold and padding setting.
Video Compressor
Re-encodes to a target file size or a quality preset, stepping the resolution down when the bitrate would starve it, and shows the projected size before it starts and the actual size after.
Video Trimmer
Cuts a clip between two timestamps, copying streams without re-encoding when the cut is on a keyframe.
Audio Converter
Converts between MP3, WAV, FLAC, AAC, OGG and Opus with bitrate and sample-rate settings.
Extract Audio from Video
Pulls the audio track out of a video as MP3, WAV, M4A or FLAC, or copies it without re-encoding.