Bento

Bento is a local-first presentation tool delivered as a single HTML file, combining document storage, editor, and player in one self-contained package. It's designed from the ground up to integrate with AI agents—ChatGPT projects, Claude Code, or local models can edit your decks directly, treating the file as a workspace.

Highlights

• Single HTML file containing all slides, fonts, assets, and data as readable JSON
• Morph transitions that animate elements smoothly between slides by matching IDs
• Embedded support for videos, audio, and live charts (bar, line, pie, scatter)
• Live collaborative editing via CRDT engine with end-to-end encryption
• Offline-first architecture protecting data privacy by hard-blocking cloud features
• AI agents can edit decks programmatically without manual intervention

Bento works perfectly without AI involvement, but its core promise is compatibility with AI workflows. No account, login, or subscription required—download and start editing. Whether you collaborate with teammates, sync via AI agents, or work solo offline, the single-file model keeps your presentation portable and readable forever.