WebVTT uses periods in timestamps and can attach identifiers, layout settings, regions, CSS, speaker tags, and karaoke timestamps to cues. SubRip uses numbered blocks and comma-separated milliseconds. This converter validates the timed cues, writes fresh sequential numbers, and reports any malformed blocks it skips.
Choose basic formatting to keep bold, italic, and underline tags that many SRT players understand, or create plain text. WebVTT-only presentation data is removed because SRT has no reliable equivalent. Your caption text stays in this tab and is not uploaded.