Design and diagrams decision
Magicslides
A single competent developer can build a useful, smaller replacement (LLM calls + PPTX rendering + Google Slides export) in about a week; the vendor's proprietary models, templates, integrations and polish are the main things a DIY will lose.
Visit website↗$29/mo
$348/yr
Per seat. Read off the official pricing page.
$100one-off38 h to build
$100/mo6 h/mo upkeep
On cash alone, building overtakes the subscription at 4 seats.
No open-source build does this yet
Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.
What a replacement has to do
- Take user prompt or upload → call LLM/vision models to generate structured slide content → render slides into PPTX/Google Slides format → allow edits and downloads
What it still won’t have
- Proprietary model access and bundled 'model credits' included in the paid plan
- The vendor's polished templates, design system presets and ready-made UX polish
- Built-in mobile apps, Chrome/Figma/ChatGPT integrations shipped by vendor
- Priority support, managed licensing and account upgrade flows
- Scale, analytics, and enterprise/whitelabel features
What remains hard
- Product polish and ongoing maintenance
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 4 seats.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a single-developer AI slide generator using Next.js for frontend, Node.js + Express backend, PostgreSQL for minimal metadata, and deployed on Vercel (frontend) + a small VPS or Render (backend). Core features: 1) accept prompts, PDFs, DOCX and YouTube URLs; 2) extract text/transcripts; 3) call an LLM (OpenAI/Anthropic) to produce per-slide title/body/layout JSON and call an image model for slide images; 4) render/output PPTX files and implement Google Slides export via Google Slides API; 5) simple template engine with 6 sample templates; 6) user auth (email or OAuth) and file uploads to an S3-compatible bucket. Out of scope: multi-user billing, mobile apps, advanced design system editor, enterprise SSO. Include error handling for provider failures, input validation, and unit/integration tests for the core transform and export flows.
How we checked
How the score was reached
- Build verdict base78
- 3 cited sources+3
- Price verified on pricing page+3
- Evidence score84
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 3
Every page the run actually retrieved.
- official productMagicSlides — official product
- official pricingMagicSlides Pricing
- official docsMagicSlides Documentation
Integrity checks
What held up, and what did not.