Free AI PPT Maker — No Login, No Watermark
The truly free AI PPT maker. Generate professional presentations from any prompt without signup, without watermark and without a trial paywall.
SlideGen is the genuinely free AI PPT maker. Unlike most "free trial" tools that lock exports behind a paywall, SlideGen lets you generate, preview and download unlimited presentations on the free plan — no signup needed to try, no watermark on any deck, no credit card. Use it as a free Gamma AI alternative, a free SlidesAI alternative or a free Tome alternative. It stays free thanks to a few discreet ads — that's the entire business model.
Why SlideGen
What you get on the Free plan
The free plan is built to be useful, not a teaser. Generate as many AI presentations as you need — homework, side projects, internal updates, lightning talks — with full export and AI design.
- Unlimited AI presentations
- Full PPT / HTML / Markdown export
- Professional templates
- AI-written speaker notes
- No watermark on any deck
- Works on web, mobile, tablet — no app install
How does SlideGen stay free?
SlideGen runs on advertising revenue. You'll see a few unobtrusive ads between sections and, occasionally, a short rewarded ad that unlocks 24 hours of unrestricted use. There is no subscription, no credit card, no per-deck cap and no watermark on what you download.
- No subscription, no renewals, no upsells
- Ads stay outside your actual deck — your slides are clean
- Disable adblocker if you can — it keeps the lights on
How is this different from Gamma AI free / SlidesAI free?
Most competitors offer a 'free trial' rather than a real free plan — exports are blocked, watermarks are added, or generations are capped at 1 or 2. SlideGen's free plan is meant to be used, with no quota and no watermark.
Example prompts you can try
Frequently asked questions
Is SlideGen 100% free?+
Yes — completely. Unlimited AI presentations, full export, no credit card. SlideGen is ad-supported, which is how it stays free for everyone.
Do I need to sign up to use it for free?+
You can try without signing up. Sign-in is only needed to save your decks across devices or share them publicly.
Are free decks watermarked?+
No — decks never carry a SlideGen watermark. Ads stay on the slidegen.net website, not inside the file you download.
Is there a free trial limit?+
No. Generate as many decks as you need. The only rate-limit is a per-network abuse cap that almost no real user ever hits.
Ready to generate your next deck with AI?
Start free. No login. Your first presentation is ready in under a minute.
Open SlideGen — it's free