ABOUT

Social copy grounded in the video itself

Caption Engine is an AI creator tool for turning an uploaded video into exactly three short TikTok-ready captions and exactly ten relevant, viral-friendly hashtags.

Why it exists

Many caption tools begin with a short description typed by the creator. Caption Engine begins with the clip. It extracts chronological frames, examines the visible subject and context, and can consult limited current public-web information before creating the final copy.

What it is not

Caption Engine is not an automatic subtitle or transcription engine. It creates short posting copy and hashtags to accompany a TikTok video; it does not convert speech into timed, on-screen text or burn subtitles into the uploaded file.

What the product optimizes

The engine evaluates content match, search relevance, hook strength, niche targeting, public trend evidence, specificity, and discovery balance. It penalizes generic filler hashtags. These signals can improve relevance, but no service can guarantee reach, engagement, or virality.

Simple prepaid access

Caption Engine uses prepaid credits rather than a recurring subscription. One credit pays for one successful generation or regeneration. If the AI operation fails, the reserved credit is automatically returned to the user’s wallet.

Privacy and support

Uploaded videos and extracted frames are temporary processing files and are removed after the request finishes. Read the privacy policy for details or contact support@captionengine.org.