arcsin1/oh-my-ppt

What it solves

Oh My PPT is a local-first AI-powered presentation tool that replaces traditional static PPTX files with editable HTML-based slides. It eliminates the time-consuming process of manual layout and formatting by allowing users to describe their content and letting AI handle the outline, page design, and imagery.

How it works

The tool uses a combination of text-generation LLMs (via OpenAI-compatible APIs or local Ollama instances) and image-generation models to create presentations. It converts user prompts, uploaded documents (txt, md, csv, docx), or existing PPTX files into a structured HTML format that can be edited visually or via conversational AI. The application is built as an Electron desktop app, ensuring that session data and assets are stored locally.

Who it’s for

It is designed for professionals, students, and educators who need to create high-quality presentations for roadshows, defenses, or teaching, and who want the flexibility of HTML (animations, code snippets) combined with the ability to export to standard PPTX, PDF, or MP4 formats.

Highlights

• Bi-directional PPTX Support: Uses custom-developed engines to import existing PPTX files and export creations back to editable PPTX files with high visual fidelity.
• Local-First Privacy: Stores sessions, documents, and assets on the user's own computer rather than in a cloud platform.
• AI-Driven Visuals: Automatically generates context-aware illustrations and backgrounds based on page content and selected styles.
• Flexible Canvas: Supports multiple aspect ratios including traditional 4:3, widescreen, vertical 9:16, and square 1:1 formats.
• Advanced Animations: Integrates Anime.js v4 for element-level animations and 16+ page transition effects.
• Conversational Editing: Allows users to modify specific page elements (e.g., "change the title color") through a chat interface.