Caption Cleanroom · local caption QA

SRT overlap checker

Overlapping cues can make a caption renderer choose an unexpected display order or stack text. This local checker compares each SRT cue with the preceding cue and reports overlaps before any optional preview cleanup.

Review workflow

1. Paste or choose an SRT file in the local QA tool.
2. Select YouTube-basic SRT or General SRT/VTT as an advisory profile.
3. Fix timing errors manually, or preview the opt-in safe overlap clamp.
4. Inspect the visible change ledger before downloading.

Overlap findings are deterministic QA guidance; the tool does not promise platform acceptance. Your file remains in this browser with no upload, account, tracking, or browser storage.

Open the SRT overlap checker → · SRT validator · Caption CPS checker · SRT to VTT conversion