Cognitiva.

Markdown
docs reader

Use your usual chat app to shape rough material into markdown, then paste it into Cognitiva to read it as a clean, navigable documentation page.

Tools
App
Markdown Renderer

Paste markdown, get a paginated 3-column doc site. Each # H1 becomes a sidebar page. Includes an optional prompt if you want help preparing source text elsewhere.

Open renderer
Reference
Doc Template

The reference HTML template for 3-column markdown docs. Same shell as the renderer output: collapsible sidebar, right TOC with scroll-spy, warm paper palette, light/dark.

View template
How it works
01

Copy the prompt

Use the prompt when your source material is rough, long, or unstructured. It tells your chat app how to produce markdown that Cognitiva can render well.

02

Generate or clean markdown

Paste the prompt and your source text into any LLM. Iterate there until the result has clear # H1 pages and useful ## H2 sections.

03

Paste into Cognitiva

Bring the final markdown into the renderer. You can also skip the prompt entirely if you already have good markdown.

04

Render and share

Cognitiva turns headings into navigation and gives you a readable doc with sidebar pages, right TOC, previous/next navigation, and downloadable HTML. Want a public URL? See how to share →

Share as a public link

Cognitiva runs in your browser and the Download HTML button gives you a single self-contained file. There is no server storing your docs, so to put one online and get a shareable URL you host that file yourself. Three easy ways, no build step required.

Vercel

Vercel Drop: permanent link

Sign in (free) and drag your downloaded .html onto the page. Pick a project name and deploy. You get a permanent your-doc.vercel.app URL. Best when you want the link to last.

Netlify

Netlify Drop: no account needed

Drop your .html and a live URL appears instantly, no sign-in. Heads up: unclaimed sites are deleted after about an hour, so create a free account and claim it if you want it to stick.

Claude

Claude Artifacts: if you already use Claude

There is no file upload. Paste the doc's HTML into a chat so Claude renders it as an artifact, then use Publish and Share & copy link. The link is public and needs no account to view. Note: artifacts block external resources, so a doc exported with web fonts may fall back to system fonts.

Cognitiva as a skill
Claude Code · Artifact
The Cognitiva skill

Skip the paste step. Install the skill and ask Claude for a "Cognitiva artifact" of anything: a topic, some markdown, or content you already have. It generates a self-contained Artifact in this exact format, with the reader settings panel (typeface and accent) built in.

The prompt
Optional rewrite prompt

This is the bridge between chat and Cognitiva. It asks any LLM to produce structured markdown optimized for the renderer's # H1 page model. Paste your source text after the --- at the end.