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Part of the Pro screenwriting tools
Scene Header Linter
Catch slugline problems before a reader does.
Start freeThe Scene Header Linter reads every scene heading in your screenplay and tells you exactly what is off. It catches the things a reader clocks in a second and a writer misses at midnight: a missing INT. or EXT., a location with no time of day, the wrong dash, a heading that is not in caps, or two location names that almost match.
For each one it points at the line, names the problem, and hands you a corrected heading to copy. It reads your draft and never changes a word of it, so the page stays yours. Run it on a finished script or a scene you wrote two minutes ago.
What it does
- ✓Flags a missing or malformed INT./EXT. prefix and offers the fixed heading.
- ✓Checks that every heading carries a location and a standard time of day.
- ✓Catches two location names that almost match, so one place keeps one spelling.
- ✓Runs on your live draft or a saved script, and never edits your document.