Turn an existing HTML or PowerPoint file into editable HTML slides — either parsed as-is, or rebuilt by AI to export cleanly.
Parses the file directly. HTML must contain <section class="slide">…</section>. PPTX slides are reconstructed as editable positioned HTML objects.
Rebuilds the content as clean slides using the same rules as Create (design system + PPTX-safe), so it exports well. Works on HTML or PPTX. The number of slides is chosen by the AI to fit the content.
The style sets the colors, fonts and layout of every generated slide. Pick a built-in style, or build your own custom style below.
This is the style Create uses. Custom styles you build appear here too.
Any method below creates a “Custom” entry, selects it, and applies it to Create. Pick one:
Reuse an existing CSS design system (e.g. wavestonedesign.css). Its classes are reused by the AI.
Extracts the theme’s accent colors, background and fonts to build a matching style.
Name your custom style, then save it. Saving adds it to the dropdown and exports the reusable .json file at the same time.
Load a style previously saved from DeckSeeder.
Convert your HTML deck to editable PowerPoint with the integrated browser export engine.
Quality export engine — integrated browser pipeline with dedicated HTML preparation, PowerPoint-safe styles, image handling, and layout validation.
Single HTML file for playback: keyboard navigation, thumbnails and fullscreen. PPTX export stays in DeckSeeder so PowerPoint output remains editable.
Configure the LLM provider. Keys stay in your browser (localStorage).
Import, export or restore the system prompt overrides used by generation, AI import, retouching, slide creation and theme analysis.
100% local app for drafting 1280×720 HTML slide decks in the browser, then exporting them to PPTX or standalone HTML.