Add word-synchronized captions to MP4, MOV, and WebM clips. SoCaptions uses Whisper-based transcription, offers editable word-level timing and visual styles, and exports a burned-in MP4 for TikTok, Instagram Reels, YouTube Shorts, YouTube, and LinkedIn. A public REST API and free subtitle utilities are also available.
- Word-level Whisper transcription for uploaded clips
- Style presets including Karaoke, Bold Outline, Box, Cinematic, and Minimal
- Edit individual words, timing, fonts, position, and animation on a timeline
- Export burned-in MP4s for TikTok, Reels, Shorts, YouTube, and LinkedIn
- Free subtitle utilities and a public REST API
Useful for creators captioning short videos, social teams preparing Reels, Shorts, and TikTok clips, educators and marketers making videos accessible without sound, and developers automating captions with the REST API.

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