PlainDeck
AI presentation builder that produces a single self-contained file — open it in any browser, edit it with plain English, and share it by email with no login wall for the recipient.
Independent consultants, course creators, and fractional execs who send slide decks to clients weekly and hate login-walled cloud editors
- Describe the deck in chat and get a portable .html file in seconds
- Edit any slide with plain-English commands after the deck is built
- Recipients open the file in any browser with no account, app, or install
- Offline-by-default mode that hard-blocks any network call from the deck
GitHub traction for local-first single-file decks like Bento signals real user fatigue with PowerPoint and Google Slides lock-in, and AI agents can now read and rewrite these file formats directly.
AI presentations is a validated, large market: Gamma alone reports $100M ARR, 50M users, 15M presentations created; multiple review sites comparing 6+ tools confirm ongoing buyer interest.Gamma Revenue 2025: $100M ARR, $2.1B Valuation - LATKA ↗AI Presentation Makers Compared: Gamma, Tome, Beautiful.ai, and Pitch ↗
The idea is essentially already shipped as a free, polished OSS project: Bento (272★, 19 forks, ~260 commits) packs editor+viewer+presenter+CRDT+charts+AI-editable JSON into one ~560KB HTML file, and HTMLSlides markets the same single-file pitch directly.GitHub - nyblnet/bento ↗HTMLSlides — AI HTML Slide Generator + Presenter App ↗
Category monetization is proven (Gamma, Beautiful.ai charge $10–20/mo), but the two closest direct competitors (Bento, HTMLSlides) are free, making a paid PlainDeck hard to justify unless it layers compelling AI features that open-source lacks.Plans and pricing | Gamma ↗GitHub - nyblnet/bento ↗
Local-first, single-file, plain-JSON, AI-agent-readable decks align with durable shifts (de-clouding documents, agent-driven editing), but web/cloud presentation tools continue to dominate day-to-day usage so the niche stays narrow.Bento packs slide editor and live collab into single HTML file ↗
Building a credible single-file deck editor is non-trivial (morphing transitions, charts, File System Access API, self-rewriting JSON), but Bento shows a known reference implementation; PlainDeck's differentiation is unclear beyond wrapping AI around an existing engine.GitHub - nyblnet/bento ↗