Open Source TypeScript Presentation Software

Oh My PPT is a free, open-source, local-first AI presentation creator that generates editable HTML slides from natural language instructions. Users can describe a topic, upload supporting documents, or import existing PowerPoint presentations to create new slide decks. Its AI tools generate outlines, layouts, illustrations, and speaker notes using configurable language and image models. A visual editor allows users to move, resize, duplicate, and modify individual slide elements. More than 90 design styles provide reusable visual directions for different presentation types. The application supports animations, mathematical formulas, and multiple slide aspect ratios. Presentations can be exported as editable PPTX files, PDFs, images, or videos. Local project storage and version history allow users to retain control over their work.

Bento is a local-first presentation tool packaged as a single self-contained HTML file. Each deck carries its own viewer, presenter, editor, fonts, images, charts, animations, and document data. It opens in a modern browser without an account or installer and rewrites its own embedded data when saved. The document model remains readable as plain JSON, making files portable, inspectable, and directly editable by AI agents. Bento includes morph transitions, speaker view, comments, motion paths, PDF export, and built-in interactive charts. Optional collaboration uses end-to-end encryption and a CRDT so offline edits can merge while the relay stores only ciphertext. An offline mode blocks updates and collaboration, while signed self-updates create a new file and preserve the previous copy for rollback.

FreeShow is a free, open-source presentation application designed for churches, events, and live productions. It allows users to create and display slideshows containing song lyrics, scripture passages, images, videos, and other presentation content. The software provides a customizable editor for adjusting text formatting, visual styles, backgrounds, and slide layouts. Users can organize presentations into shows and control content during live events. It supports multiple simultaneous outputs, allowing different content layouts for audiences, stage displays, and online broadcasts. FreeShow also includes automated slide transitions, countdowns, and remote presentation controls. Its integration with MIDI, NDI, and external presentation formats makes it useful for coordinating multimedia presentations.

Voltura Air turns a phone, tablet, or browser into a wireless remote for Windows 11. Use a touch trackpad, keyboard, or supported phone motion controls; view and control your PC screen with sound; or use your phone as a Windows webcam. Manage PC files and transfer individual files between devices, switch open apps, control media and presentations, dictate and exchange text, and build custom remote-control screens. Power users can open an interactive PowerShell terminal. An optional read-only AI Assistant uses your existing Codex setup. Install the Windows host, scan its QR code, and open the controller in your browser. No mobile app-store installation or Voltura account is required. Direct LAN is the default, with optional Cloud relay for networks that block inbound connections. Device permissions stay under your control. Free and open source under the MIT license. Standard, full, and portable Windows x64 packages are available.