Edit Video Chapters Online
Upload an MP4, MOV, or MKV video, review existing chapters, add markers at exact positions, and download an updated copy in the same format.
Upload your video
Create or update a video chapter list while keeping the original media streams where possible.
Hints
- Wait for the current download to finish before starting another chapter job, or it may fail.
- Very large videos may take longer or fail on memory-limited browsers or devices.
Status: Ready
How to use
- 1 Choose an MP4, MOV, or MKV video from your device.
- 2 Use the preview slider to seek to a position, then add a chapter at that time.
- 3 Edit chapter titles or timestamps, remove unwanted entries, then save and download the updated video.
Supported formats
Video input and output
Existing chapters loaded
If your video already has chapters, they appear in the editor so you can rename, move, remove, or add markers.
Seek-only preview
Move to a position, inspect the frame, and add a chapter marker without playing audio or starting playback.
No cloud upload
Your video stays on your device while the browser prepares the updated download.
Frequently asked questions
Can this tool read existing video chapters?
Yes. Existing chapters are loaded into the editor when the selected video exposes chapter information.
Which video formats are supported?
This page supports MP4, MOV, and MKV videos.
Will the video or audio quality change?
Usually no. The tool keeps the original media streams where possible and only replaces the chapter list.
Why is preview unavailable for my video?
Some containers or codecs cannot be previewed by the browser. If the file was read successfully, you can still edit chapters using timestamps.
Are my videos uploaded?
No. Processing runs in your browser, so your video is not uploaded to a server.
Related tools
Need large files, batch chapter edits, or a smoother timeline workflow?
The online tool is convenient for one quick chapter update. For bigger jobs, Brivotech Video Converter gives you a faster desktop workflow with large file support, batch processing, offline work, and more precise video navigation.
Batch chapter workflows
Prepare multiple chaptered videos without repeating the same browser process.
Large video support
Work with files that are too big or slow for browser-based processing.
Offline and private
Process media locally on your computer without uploading videos to the cloud.
Better navigation
Use a desktop timeline when you need repeated edits and precise review.