Canvas — Render · Share

Canvas turns content into a clean, shareable page. Send it Markdown, an SVG, a Mermaid diagram, plain text, raw HTML, JSON, CSV or an image — get back a public URL anyone can open in a browser.

Source & docs Health

What it renders

Markdown.md · syntax highlighting

Mermaid.mmd · diagrams

SVG.svg · inline vector

Plain text.txt · monospace

HTML.html · passed through

JSON.json · pretty-printed

CSV.csv · tables

Imagespng · jpg · gif · webp

Use it from the command line

You need the canvas CLI and a valid token. Point it at this server with CANVAS_URL (or -u); it prints the public URL.

# A Markdown file
$ canvas -t <token> -u https://canvas.netbros.com ./notes.md
https://canvas.netbros.com/a/abc12345

# A Mermaid diagram
$ canvas -t <token> -u https://canvas.netbros.com ./flow.mmd

# Straight from stdin (format is required for stdin)
$ echo '# Hello' | canvas -t <token> -u https://canvas.netbros.com -f md -

Or call the API directly:

$ curl -X POST https://canvas.netbros.com/api/render \
    -H 'Authorization: Bearer <token>' \
    -H 'Content-Type: application/json' \
    -d '{"format":"md","content":"# Hello","title":"Hi"}'