Slidemason
Slidemason is a free, open-source presentation builder that turns prompts and source documents into decks through an AI coding agent.
What Slidemason is
Slidemason is a free, open-source presentation builder that turns prompts and source documents into decks through an AI coding agent. Its browser studio guides users through a seven-step brief, accepts PDF, Markdown and text files plus images, and supports prompt-to-deck and document-to-deck generation. Decks export to PDF or PPTX, although PPTX layouts may need manual rearrangement. The project includes 36 slide primitives for layouts, visuals, data, animation and interactive elements, along with 12 themes, font pairings, Google Fonts search and brand controls. It runs locally, requires no API keys or accounts, and says user data is not uploaded. Briefs are stored as JSON and slides as TSX. Compatible tools include Cursor, Windsurf, GitHub Copilot and Claude Code. Setup requires Node.js, pnpm and Git; the studio runs in a browser at localhost:4200.
Good
- Free and open-source MIT project
- Runs locally without accounts
- Accepts documents and images
- Exports PDF and PPTX
- Includes themes and brand controls
Watch out
- Requires an AI coding tool
- Setup requires Node.js, pnpm and Git
- PPTX layouts may need rearrangement
- AI coding tools may have separate costs
Who it suits
It suits people who want local, AI-assisted deck creation and can use an AI coding tool. Coding knowledge is not required when working through such a tool, but setup still requires Node.js, pnpm and Git.
Verdict
Slidemason combines local document-to-deck generation with inspectable project files, themes and export options. Its tooling requirements and possible AI-coding-tool costs should be considered before setup.
Plans and prices
From Slidemason's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Slidemason | Free | Free and open source · requires an AI coding tool, which may have its own cost |
The facts
Each one read from Slidemason's own pages, with the date it was checked.
What it does
- AI integrations
- The maker lists Cursor, Windsurf, GitHub Copilot, Claude Code, and other AI coding agents as compatible tools.checked 11 Oct 2026
- Brand controls
- Yeschecked 22 Sep 2026
- Data format
- Briefs are stored as JSON and slides as TSX, which the maker describes as open and inspectable.checked 11 Oct 2026
- Document-to-deck generation
- Yeschecked 22 Sep 2026
- Exports
- Users can export decks to PDF or PPTX; the maker cautions that PPTX layouts may need manual rearrangement.checked 11 Oct 2026
- Input files
- The studio accepts PDF, Markdown, and text source files, plus images such as screenshots, diagrams, and photos.checked 11 Oct 2026
- Intended users
- The maker presents it for people who want AI-assisted presentations and says coding knowledge is not required when using an AI coding tool.checked 11 Oct 2026
- License
- The repository is released under the MIT license.checked 11 Oct 2026
- Local use
- The project says it runs locally, requires no API keys or accounts, and does not upload user data.checked 11 Oct 2026
- PDF export
- Yeschecked 22 Sep 2026
- PPTX export
- Yeschecked 22 Sep 2026
- Prompt-to-deck generation
- Yeschecked 22 Sep 2026
- Purpose
- Slidemason is an open-source AI presentation builder that turns documents into polished decks using an AI coding agent.checked 11 Oct 2026
- Runtime requirements
- The quick start requires Node.js, pnpm, and Git, and runs the studio in a browser at localhost:4200.checked 11 Oct 2026
- Slide building
- The project includes 36 slide primitives for layout, visuals, data, animation, and interactive elements.checked 11 Oct 2026
- Themes and fonts
- It includes 12 themes and supports curated font pairings or searching Google Fonts.checked 11 Oct 2026
- Workflow
- Its browser-based studio guides users through a seven-step brief, which an AI agent reads to generate slides.checked 11 Oct 2026
Money
- Free plan
- Yeschecked 22 Sep 2026
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