Subtwine

Animated word-by-word captions for podcast clips and shorts, made in the browser with Whisper. Fix any word, crop to 9:16, export MP4 + SRT. Nothing is uploaded.

Free Audience Growth Tool Freemium

What is Subtwine

Drop a clip from your episode: Whisper writes word-by-word captions on your own computer, the line editor fixes names and numbers (timings re-spread automatically), you pick one of 4 styles and a position, and ffmpeg in the browser burns the captions into an MP4, with an SRT alongside. Free for clips up to 60 seconds at 720p; Pro (from $9 for 30 days) adds clips up to 30 minutes, 1080p, a 9:16 crop and no mark. No per-video credits.

Who is using Subtwine

Solo podcasters and producers cutting clips for YouTube Shorts, Reels and TikTok.

Subtwine Pricing

Freemium

Pricing details may change. Check the official website for the latest information.

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