Convert PPTX to HTML slides
with AI.
Turn any PowerPoint file into a single self-contained HTML presentation. Your .pptx never leaves your machine — the AI conversion runs locally inside Claude Code, Copilot, or Gemini CLI.
Why convert PowerPoint to HTML?
Once your deck lives in HTML, you can edit it with plain English, share it as a URL, version-control it like code, and present it on any device without PowerPoint installed.
One file, opens anywhere
All CSS and JS inline. Email it, drop it in Slack, host it on GitHub Pages — it just opens.
Edit with prompts, not menus
After conversion, change content, layout, and theme by talking to your AI agent. No more clicking through PowerPoint ribbons.
Version control built in
It's a text file. git diff your slides, review in PRs, roll back any change.
Renders the same everywhere
No "your fonts look different on my Mac" surprises. Every viewer sees what you see.
Animations PPTX can't do
Flip cards, expandable sections, animated stats, architecture diagrams. Components that respond to clicks.
Presenter mode included
Open the HTML in the HTMLSlides app for dual-display presenter view: speaker notes, timer, laser pointer, audience sync.
How to convert PPTX to HTML
in three steps.
Two minutes from deck.pptx to deck.html.
Install the skill
One terminal command auto-detects your AI agents. Or use the HTMLSlides app's one-click installer.
Prompt the conversion
In the folder containing your .pptx, ask your AI agent to convert. The skill extracts text, images, and notes locally.
Convert my-deck.pptx to HTML slides using the Obsidian theme.
Open & present
You get my-deck.html + speaker notes. Open in any browser, or load into the HTMLSlides app for dual-display presenter mode.
What gets preserved.
The skill extracts content from your PPTX. Layout is rebuilt fresh in HTML — fonts, colors, and spacing are reinterpreted to look good on every screen.
Preserved
- · All slide text and headings
- · Slide order and structure
- · Embedded images
- · Speaker notes
- · Bullet lists and numbered lists
- · Tables (rebuilt as HTML tables)
Reinterpreted
- · Fonts (mapped to web-safe equivalents)
- · Colors (replaced by theme palette)
- · Layout (rebuilt with responsive components)
- · PowerPoint animations (replaced with CSS transitions)
- · Custom shapes (re-rendered as SVG/CSS)
The goal is a deck that looks better on the web — not a pixel-perfect clone of PPTX rendering quirks.
How it compares to online PPTX→HTML converters.
Most online converters are upload-and-download SaaS. html-slides runs locally, gives you an editable HTML file, and never sees your data.
| html-slides | Online SaaS converters | |
|---|---|---|
| File never leaves your machine | Yes — runs locally | No — upload required |
| Output | Single .html file, all inline | Folder of files or hosted page |
| Editable after conversion | Edit with AI prompts | Manual HTML editing |
| Theme & layout control | 17 themes + custom prompts | Replicates source styling only |
| File size limit | None (local) | Typically 5–100 MB |
| Cost | Free skill + your AI usage | Free tier or subscription |
| Open source | Yes | No |
Frequently asked.
Do I have to upload my PowerPoint file anywhere?
No. The conversion runs locally inside your AI coding agent. Your .pptx file never leaves your machine. Most online converters upload your deck to a third-party server — html-slides does not.
What gets preserved when I convert PPTX to HTML?
Text content, slide structure, embedded images, and speaker notes are extracted from the .pptx file. Layout is rebuilt fresh in HTML using one of the html-slides themes — fonts, colors, and spacing are reinterpreted (not pixel-cloned) to look good on any screen size.
Is the AI conversion free?
The html-slides skill is free and open source. The HTMLSlides desktop app has a generous free tier. The only cost is the API usage for whichever AI coding agent you run the skill with (Claude Code, Copilot, Gemini, etc).
Why convert PPTX to HTML at all?
HTML slides are a single self-contained file you can version-control, share via URL, embed anywhere, and edit with plain English prompts. They render identically on every device, never need PowerPoint to open, and support animations and interactive components that PPTX cannot.
Which AI agents can do the conversion?
The html-slides skill works with Claude Code, GitHub Copilot, Gemini CLI, Cursor, Windsurf, Codex, and Aider. Install once — it works in any of them.
Can I edit the HTML deck after conversion?
Yes — that's the point. After conversion, you keep talking to your AI agent: "make slide 3 a flip card", "use the Bold Signal theme", "add a timeline showing our roadmap". The HTML file is the source of truth and the AI rewrites it on each prompt. See how to edit AI-generated HTML slides.
Convert your first PPTX
in under two minutes.
Free, open source, runs locally. No upload, no signup.
Related: Why HTML slides beat PowerPoint · All features · Docs