xixihhhh/hotclip

What it solves

HotClip is an open-source AI tool designed to transform long-form videos (such as podcasts, live stream replays, and courses) into high-engagement, vertical short-form videos (9:16) for platforms like TikTok, YouTube Shorts, and Bilibili. It eliminates the need for expensive credit-based SaaS tools and cloud uploads, providing a fully local workflow for privacy and cost-efficiency.

How it works

The tool follows a three-step process: import, AI highlight detection, and export. It uses local ASR (Automatic Speech Recognition) engines like SenseVoice or Paraformer to transcribe audio into text with word-level timestamps. An LLM then analyzes the transcript to identify "viral" moments based on a multi-dimensional scoring system (hooks, structure, value, and trends). To ensure precision, it cross-references text with audio loudness, visual motion peaks, and bullet-chat (danmaku) heatmaps. Finally, it automatically crops the video to vertical format using face-tracking, adds dynamic captions, and applies audio normalization and noise reduction before exporting.

Who it’s for

• Streamers and Clip Creators: To automatically extract highlights from hours of live stream replays.
• E-commerce Teams: To create product demonstration clips based on conversion logic.
• Podcasters: To turn audio-only shows into vertical videos with waveform animations.
• Content Creators: To quickly remove filler words and pauses from talking-head videos.

Highlights

• Fully Local Processing: Transcription, clipping, and exporting happen on the user's machine to ensure privacy and zero cost.
• Evidence-Based Clipping: Combines text analysis with loudness, visual motion, and viewer interaction data (danmaku) to justify every cut.
• Smart Vertical Reframing: Automatically tracks faces to keep subjects centered in 9:16 format without erratic movement.
• Dynamic Captions: Features professional-style "Hormozi" large text, bubble effects, and semantic line-breaking for better readability.
• Agent-Ready Ecosystem: Includes a headless CLI and an MCP server, allowing AI agents (like Claude Code) to handle the entire clipping pipeline via a single command.
• Compliance Tools: Built-in linting for platform-forbidden words and AIGC labeling to help creators avoid bans.