presenton/presenton: Open-Source AI Presentation Generator With Self-Hosting and API — 4,493 Stars

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Presenton generates presentations from prompts or uploaded documents, runs entirely locally via Docker or Electron desktop app, and exports to PPTX and PDF. Supports OpenAI, Gemini, and Ollama models with custom HTML+Tailwind CSS templates and the ability to create templates from existing PowerPoint files. Updated March 26, 2026. The self-hosted, API-first approach makes this viable for enterprise automation pipelines — not just another chatbot-to-slides toy.