ModernSlides: free open-source tool builds slide decks as a single JSON

Economist Kevin Bryan open-sourced ModernSlides, a browser-based slide tool that packs an entire deck into a single JSON file running on plain HTML, with minimal block-level syntax, hotkeys for edit/present/fullscreen modes, and free preset styles to escape PowerPoint clichés.

2026-10-02 ~ 2026-10-02 · 3 related posts

• ModernSlides: an entire slide deck in one JSON, presented straight from the browser — Afinetheorem · 2026-10-02
• Researcher shows a free open-source slide tool that beats PowerPoint and dodges AI design clichés — Afinetheorem · 2026-10-02
• The full ModernSlides syntax: blocks, columns, reveals and keyboard shortcuts — Afinetheorem · 2026-10-02