What does Video Splitter do?
Video Splitter turns one local video into several clips. Split-at-timestamps mode cuts the timeline at the markers you add. Keep mode exports only the ranges you list. Remove mode drops those ranges and exports what remains. A segment has to be at least 0.1 seconds, and it has to sit inside the file. Accurate mode decodes the picture and trims on the timestamps, so the export is a new H.264 file rather than a copy of the original bytes. Fast keyframe mode copies the video and audio streams. Containers can only start a copy on a keyframe, so the clip can begin slightly earlier than the number you typed. That mode is not frame-perfect. Reordering changes download names only. It does not join the clips into a new timeline.
How to use Video Splitter
- 1Upload a video and read its duration.
- 2Add split points, or enter the ranges to keep or remove.
- 3Leave a segment unchecked if you do not want that clip.
- 4Export the MP4 clips. Cancel stops the local job.
Supported inputs and outputs
Inputs
One local video, such as MP4, MOV or WebM
Outputs
One MP4 per selected segment, A ZIP of those MP4 clips when there are two or more
Practical uses
- Cutting a recording into separate clips
- Dropping a section without joining the rest into one file
- Downloading every kept range as its own MP4
Browser and media limitations
- Fast keyframe cuts copy streams and can snap to an earlier keyframe. They are not frame-perfect.
- Accurate cuts re-encode. They are not a bit-exact copy of the source.
- Segments shorter than 0.1 seconds, overlaps and ranges outside the file are rejected.
- Very large videos can run out of browser memory. The engine downloads on first export.
How local processing works
Your media is processed locally in your browser and is not uploaded to Tubelexity for processing. The media engine downloads on first export. Page navigation and analytics still use network requests.
Keyframe cuts and accurate re-encoding
A keyframe is a picture a player can start from. Stream copy has to begin on one of those pictures, so a fast cut can include a few extra frames from before the timestamp. Accurate mode throws away that shortcut: it trims the decoded frames and builds a new file, which is why it takes longer and why the result is not a byte copy.
Segment boundaries are the start and end you set. Overlapping ranges are rejected rather than blended, and a range that sticks out of the file is rejected rather than clamped into a surprise clip.
Frequently asked questions
Are the cuts frame-perfect?
Accurate mode re-encodes so the trim follows the timestamps. Fast keyframe mode copies streams and can start on a nearby keyframe.
Does reordering join the clips?
No. Order only changes the part numbers in the downloads. Each clip keeps its own start and end.
Is the soundtrack kept?
Yes, when the file has an audio track. A video with no audio exports picture only.
Is the video uploaded?
No. The file stays in this browser tab. The media engine downloads on first export.