Node.js
Read local files, uploads, S3/R2 objects, and other byte sources.
POTM to Markdown in your browser.
Convert POTM files to GitHub-Flavored Markdown directly in your browser.
Your POTM stays on your device. No upload. No account.
- npm @mdgate/pptx
- license MIT
- runtime Node.js · Edge · browser
Starting local converter
Use POTM to Markdown in your app
$
npm install @mdgate/pptx
import { toMarkdown } from '@mdgate/pptx';
const markdown = await toMarkdown(bytes);Pure TypeScript, Node.js, Cloudflare Workers, Edge, Browser, No Python, No native addons, No WASM, Zero third-party runtime dependencies
How POTM to Markdown works
- POTM
- slide XML parsing
- titles · body · notes · tables
- GitHub-Flavored Markdown
Built for JavaScript runtimes
Cloudflare Workers
Parse PowerPoint files directly inside Workers without PowerPoint or a native binary.
Browser
Convert POTM locally without uploading it to a server.
Edge
Run the same TypeScript converter in compatible Edge runtimes.
What @mdgate/pptx extracts
- Slide titles and body text
- Lists
- Tables
- Speaker notes as a block quote after each slide
- Charts and diagrams as readable blocks
- Slide, layout, and master text cascade
Why @mdgate/pptx
Runs where your JavaScript runs
No separate processing service. The converter is TypeScript you can call from Node.js, Cloudflare Workers, Edge runtimes, and browsers.
Local conversion
POTM files can stay inside your application or browser.
Content detection
Recognizes POTM files from their contents, not only the filename.
Deterministic parsing
The same POTM file produces repeatable Markdown without model inference.
Small runtime surface
No Python. No native addons. No WASM. No third-party runtime dependencies.
POTM for AI agents
Turn POTM files into content your agent can actually work with.
- POTM
- Markdown
-
- grep
- search
- chunk
- index
- cache
- cite
- reason
Need more than POTM?
One format
@mdgate/pptx
Your own set
@mdgate/core
+ @mdgate/pptx
+ @mdgate/pdf
+ @mdgate/docx
Broad file support
@mdgate/converters
FAQ
Can I convert POTM to Markdown without uploading it?
Yes. POTM files can be converted locally in the browser.
Does POTM to Markdown work in Cloudflare Workers?
Yes. @mdgate/pptx runs directly in Cloudflare Workers.
Does it require Python?
No.
Does it require native addons or WASM?
No.
What does it output?
GitHub-Flavored Markdown.
Can I install only the POTM converter?
Yes. Install @mdgate/pptx instead of the complete converter set.
Does this convert .ppt too?
No. Binary PowerPoint 97-2003 files use @mdgate/ppt.