AI Subtitle Generator

Timing is estimated from your speaking speed (adjustable from 110–210 words per minute) and distributed across your script sentence by sentence. Most creators speak at 150–170 WPM in social videos; adjust the slider and re-export until the pacing matches your delivery.

No. This tool works from your script or transcript text, so nothing is uploaded and the SRT generates instantly in your browser. If you don't have a transcript, most editing apps (CapCut, Premiere, Descript) can auto-transcribe — paste the result here to get clean, properly formatted subtitles.

SRT (SubRip Subtitle) is the standard subtitle format: numbered blocks with start/end timestamps and text. Instagram, YouTube, LinkedIn, and most video editors accept .srt uploads for closed captions.

It condenses your script into short, hook-style on-screen captions (3–8 words each) — the style used in high-retention Reels and TikToks where big text carries the video. The literal SRT is for accessibility; the punchy captions are for attention.

The majority of social video is watched with sound off. Captions keep muted viewers watching, which improves retention — the metric Instagram's algorithm weighs most heavily when deciding how far to distribute a Reel.