ScriptCheck

Paste your pages. Get flagged against standard screenplay conventions — sluglines, cues, and action-line pacing.

ScriptCheck is a free screenplay format checker that flags common formatting mistakes against standard industry conventions — sluglines missing a time-of-day tag, character cues without dialogue beneath them, and action lines that run too long. It won't judge your story, but it will catch the formatting slip-ups that make a script look unpolished to a reader, before you send it anywhere.

1
sluglines
1
cues
0
issues
Clean. No formatting issues detected — this checks convention, not story.