Presenton: Open-Source Self-Hosted AI Presentation Generator Reaches 4.5K Stars as Gamma Alternative

GitHub·medium signal

Presenton hit 4,587 GitHub stars as an Apache 2.0-licensed alternative to Gamma, Beautiful.ai, and Decktopus. It generates slide decks from prompts, documents, or dashboards, runs entirely self-hosted via Docker or Electron desktop app, and supports local models through Ollama alongside OpenAI and Gemini. Users can create custom templates from existing PPTX files and export as editable PPTX or PDF — with no seat licenses or feature gates, only your actual API usage costs.