← API Reference
Public API · v1

Subtitle Style Playground

Tune the subtitleStyleOverride JSON and watch the captions render live, with the exact validation your API request will get. When it looks right, copy the JSON into your submit.

Start from a preset

Valid. This JSON passes the same validation asPOST /api/v1/express

Paste it as settings.subtitleStyleOverride in your submit.

Live preview

Same renderer as the final video. Word timing is simulated; the real render uses your track's transcription.