AI PowerPoint Generator real .pptx decks, free

Describe the presentation you need in plain words, with who it is for, how many slides and what it must cover, and the AI makes it as a PowerPoint file in the free Innerscene viewer. Innerscene's deck engine turns the AI's slide plan into a real deck: a slide master with layouts and placeholders, native charts with their data, tables, pictures, a footer with slide numbers and speaker notes. The AI looks at the slides as the viewer draws them and fixes what it finds. Open a .pptx of your own and the AI can edit that too.

Free. Use your own Anthropic or OpenAI key.

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An example deck made with AI

Download the PPTX file

Watch how it works

How it works

  1. 1. Describe the deckSay what it is for, who will see it, how many slides and what it must cover. Add photos, or open your own .pptx to have it edited.
  2. 2. The AI makes and checks itThe AI writes a slide plan for Innerscene's deck engine, which saves a real PowerPoint file. It then looks at pictures of the slides and fixes what is wrong.
  3. 3. Refine and download the .pptxThe deck opens in the viewer's slide view. Ask for changes in the chat, then download the .pptx.

Why make it with AI here

  • Slides sit on a real slide master with layouts, so PowerPoint's Reset, layout switching and theme changes work, and Keynote, Google Slides and LibreOffice Impress open the file cleanly.
  • Charts are native PowerPoint charts with their numbers in an embedded workbook, and tables are real tables, so you can edit the data after you download.
  • The AI checks pictures of the slides after each build: text that does not fit, crowded slides, low contrast, shapes off the slide, missing pictures and decks longer than you asked for.

What the deck engine writes

Layouts
Title, section, title and content, two columns, comparison, picture with caption, big number, quote, table, chart, timeline and closing slides, and free layouts with your own shapes, all on one slide master.
Charts and tables
Column, bar, stacked, line, area, pie and doughnut charts with their data in an embedded workbook, and tables with header rows, merged cells and column widths.
Text that fits
Text is measured with real font metrics and shrunk the way PowerPoint autofits it, and the AI shortens or splits a slide where text still does not fit.
Speaker notes
Notes on every slide, with what to say and the detail that stays off the slide.
Pictures and logo
Photos you attach and pictures of 3D models, floor plans and buildings made in the same chat, a logo in a corner of every slide, and a footer with slide numbers.
Editing your own .pptx
Slides, text, pictures, tables, charts, shapes and speaker notes come through. Animations, SmartArt, video and comments are left out, and the panel lists them before the AI starts.

Prompts to try

Click one to open it in the AI panel, then change the sizes to suit.

Getting the deck into PowerPoint

  1. Download the .pptx once the deck opens in the viewer. It opens in Microsoft PowerPoint, PowerPoint for the web, Apple Keynote, Google Slides and LibreOffice Impress.
  2. Flip through the slides in the viewer first with the slide picker, and ask the AI for changes until the deck is right.
  3. In PowerPoint, the speaker notes are under each slide, and Edit Data on a chart opens its numbers.

The file is a standard Office Open XML presentation, 16:9 by default or 4:3, with one slide master, fourteen layouts, theme fonts and six accent colours. Text is fitted with real font metrics, so it stays inside its boxes when PowerPoint opens it.

Best export formats: PowerPoint (.pptx)

Open PowerPoint files in the free PowerPoint viewer

Good to know

The AI and the deck engine handle text, bullets, pictures, tables, charts, timelines, shapes, a logo, a footer, slide numbers, transitions and speaker notes. When the AI edits a .pptx you opened, parts it cannot hold are left out of the new version, and the panel lists them before you start: animations, SmartArt, video and sound, comments, embedded objects and picture backgrounds. Check facts and figures before you present.

Cost and privacy

You use your own Anthropic or OpenAI API key. It is stored only in your browser and sent only to that provider, which bills you directly: a model typically costs $0.05 to $0.30 at Standard quality and up to about $1 at Detailed, and Innerscene charges nothing. Your key and prompts are not sent to Innerscene; we record anonymous usage statistics such as the steps used, the model chosen, token counts, a cost estimate and whether a model was made.

How to get an Anthropic or OpenAI API key

Read the full guide: API keys, refining and exporting

Questions

▶Is the AI PowerPoint generator free?
The tool is free and Innerscene charges nothing. Your own Anthropic or OpenAI key pays for the AI, usually about $0.10 to $0.50 per deck at Standard quality, depending on its length.
▶Can the AI edit a PowerPoint deck I already have?
Yes. Open the .pptx in the viewer, choose Edit with AI, and say what to change. The AI reads the slides with their text, pictures, tables, charts and speaker notes, and the panel tells you first if the file has parts it cannot keep, such as animations or SmartArt.
▶Which apps open the file?
Microsoft PowerPoint 2010 and later, PowerPoint for the web, Apple Keynote, Google Slides, LibreOffice Impress and any other app that reads .pptx.
▶Can I put pictures of my 3D model in the deck?
Yes. Make the model first in the same AI panel, then pick PowerPoint decks and ask for, say, a launch deck with pictures of it. The AI places a picture of each version you name, and the photos you attach.
▶Can it make slides from a Word document?
Yes. Open the .docx in the viewer, open Create with AI, pick PowerPoint decks and ask for slides from the document. The AI reads its text and headings and turns the main sections into slides with speaker notes.

What it can make

Floor plans and layouts

Molecules, proteins and crystals

Make a model for any format

Make a model for your app

More ways to use it

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