How to split a long screen recording into short clips
- Step 1Drop your video — Drop your video and pick segment count or length
- Step 2Set split points or interval — JAD splits at the nearest keyframes via stream-copy
- Step 3Download the segment archive — Download the resulting parts as a ZIP
Frequently asked questions
Can I split at exact timecodes or does it round to keyframes?+
Stream-copy splitting rounds the start of each segment to the nearest previous keyframe to ensure decodable output. The end of each segment is more flexible. If you need frame-accurate splits at exact timecodes regardless of keyframe position, enable re-encode mode which processes each segment independently. Re-encode mode is slower but produces exact cuts.
How are the output files named when splitting?+
Output files are named sequentially: input_001.mp4, input_002.mp4, etc. For custom timecode splits, the filename can optionally include the start timecode (input_00-00-00.mp4, input_00-10-00.mp4). All output files are collected into a ZIP archive for download.
Is there a limit on how many segments I can split into?+
No hard limit — JAD can split into as many segments as your split points define. Very high segment counts (100+) may slow the browser due to memory usage from holding multiple output buffers. For extremely long recordings, consider splitting in multiple passes (first into large chunks, then refine each chunk) rather than a single pass into many small segments.
Privacy first
All video processing runs locally in your browser using WebAssembly and FFmpeg. No file is ever uploaded — only metadata counters are saved for signed-in dashboard stats.