DeepFeather

Can AI replace SlideFast?

KINDA · weekend project
price $8/moyou'd save $96/yrbuild time weekendcategory 🐦 social mediareplaced by 0 peoplebuild unverified

A personal prompt-to-carousel tool is a solid weekend build, but SlideFast's polished editor, reusable brand system, asset library, dependable multi-format exports, and publishing workflow take sustained product work.

the prompt
Build me a local AI social-carousel maker to replace SlideFast. Requirements:

- Use Node, Express, SQLite, and a single-page vanilla JS interface.
- A composer accepts a topic, pasted notes, or a URL; URL fetching extracts
  readable article text on the server.
- Send the source to one LLM (API key in .env) and require structured JSON:
  hook, 5-10 slides, CTA, LinkedIn caption, and hashtags.
- Show every slide in a 1080x1350 canvas preview with inline text editing,
  drag-to-reorder, duplicate, delete, and regenerate-one-slide actions.
- Include 4 fixed layouts: cover, statement, bullets, and CTA. Auto-fit text
  within strict bounds and warn when copy is too dense.
- Load brand settings from brand.json: logo, two fonts, 4 colors, and footer.
  Provide a small settings panel that updates and saves this file.
- Let me upload local images and assign one to a slide; store them under
  data/assets and never send them anywhere except the optional LLM call.
- Save projects to SQLite and autosave edits after a short debounce.
- Export every slide as PNG and the full carousel as a LinkedIn-ready PDF
  using Playwright, with deterministic dimensions and embedded fonts.
- No accounts, payments, analytics, collaboration, or direct social posting.
- Ship one sample project and a README covering setup, .env, brand.json,
  supported input types, and export commands.

$ open in your agent (prompt prefilled, you press enter) or copy it raw

why people still pay

They pay to skip the fragile parts between an AI draft and a consistently branded carousel that is actually ready to publish.

what you lose

xpolished visual editor

xreusable brand and asset library

xreliable PDF and image exports

xmulti-channel publishing workflow

xhosted storage and sharing

prior art · use these instead of building, if you'd ratherPptxGenJSOpen-source JavaScript presentation generator that can provide the structured rendering and export layer.↗
also one-shottable
Canva
$18/mo · designKINDAGamma
$12/mo · presentationsKINDATypefully
$12.5/mo · social mediaYES
share on X ↗"I just replaced SlideFast ($8/mo) with one prompt"
questions
Can AI replace SlideFast?

Kinda. The core of SlideFast is buildable in a weekend with the prompt on this page, but there are real gaps: polished visual editor, reusable brand and asset library. Read the honest list above before committing.

How much does SlideFast cost?

SlideFast costs about $8/month (Starter, checked 2026-07-31), which is $96 per year.

What do I lose by replacing SlideFast?

Honestly: polished visual editor; reusable brand and asset library; reliable PDF and image exports; multi-channel publishing workflow; hosted storage and sharing. If any of those are load-bearing for you, keep paying.

Is there an open-source alternative to SlideFast?

Yes — PptxGenJS (Open-source JavaScript presentation generator that can provide the structured rendering and export layer.). Using prior art is also a valid exit; the prompt is for when you want it exactly your way.