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TubeCaps for YouTube

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Overview

Lunacy subtitle assistant for YouTube with multi-provider model support.

TubeCaps helps you get more value from any YouTube video. Turn videos into readable transcripts, AI-powered script analysis, and practical takeaways you can reuse in your own work. Why install TubeCaps: - Smart Transcripts: Read clean, well-structured video transcripts with better segmentation. - Script Diagnosis: Analyze hooks, curiosity gaps, pacing, visual storytelling, and structure. - Actionable Takeaways: Learn what makes top-performing videos work and apply those patterns to your own content. - AI Chat Assistant: Ask questions, brainstorm rewrites, generate ideas, or summarize long videos in seconds. - Bring Your Own Models: Connect your own API keys from OpenAI, Gemini, Claude, DeepSeek, and more. - Privacy-First: Your API keys and data stay on your device. We never see your keys. - Global Support: Available in English, Chinese (Simplified and Traditional), Japanese, Korean, French, German, Spanish, and Portuguese. Whether you're a creator, marketer, researcher, or power viewer, TubeCaps gives you a faster way to study what works on YouTube. Install TubeCaps and make every video more useful.

Details

  • Version
    1.1.0
  • Updated
    April 7, 2026
  • Size
    578KiB
  • Languages
    9 languages
  • Developer
    Website
    Email
    support@lunacydev.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

TubeCaps for YouTube has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

TubeCaps for YouTube handles the following:

Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

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