Gamma

What it is

Gamma turns text into a presentation. You paste an outline, a chunk of a PRD, or a one-line prompt, and it generates a full deck — sensible slide breaks, headings, bullet hierarchy, and stock imagery — that you then edit like a doc rather than a canvas of floating boxes. For a PM it’s the fastest path from “I know what I want to say” to “there’s a deck to react to.” It exports to PowerPoint and PDF and can pull from an uploaded doc so you’re not retyping your own content.

Our verdict

This is our pick for the category. Of everything we tested, Gamma gives you the most usable first draft from raw text: hand it your exec-summary paragraph and it comes back with a coherent slide flow instead of one wall-of-text slide per idea. The card-based editor means fixing structure is a matter of splitting and reordering blocks, not fighting alignment guides. The free tier is enough to judge it before you pay, and $9–18/mo is trivial against the hours it saves.

Where it falls short: the “Made with Gamma” watermark and weak brand controls on the free tier make free-tier output unfit for a real exec deck — you need at least Plus, ideally a Team seat, to apply your company theme. And the PowerPoint export is decent but not pixel-faithful; if your leadership expects the corporate master template exactly, you’ll do cleanup after export.

Get value in 10 minutes

1. Click Create with AI → Presentation, and choose Paste in text (not “Generate,” which invents content).
2. Paste your decision or update as prose — e.g. your exec-summary paragraph plus 3–5 supporting points and the numbers.
3. In the prompt line add: “8 cards max. One idea per card. Keep my numbers exactly. Do not add slides I didn’t give you content for.”
4. Generate, then reorder cards so the ask/decision is card 2, not buried at the end. Apply your theme, export to PowerPoint, and do a final label/number pass by hand.