Charts and tables, served as a URL.

One link turns a safe chart or table spec into a finished PNG, SVG, or JSON render, cached on Cloudflare's edge and ready for embeds, emails, dashboards, and social cards.

Let your agent set it up

Add chart & table images to my app: shots.shellbot.sh/llms.txt

Copy it, paste into Claude, Cursor, or any agent.

Open a live render Playground llms.txt

Generated Hilo area chart titled Weekly activation — A real render, not a screenshot. Change a value in the URL and the image changes with it.

Default output

1200×630 logical pixels at 2× retina

Formats

PNG, SVG, and JSON debug payloads

Storage path

Worker cache, R2 records, KV short links

Security

API keys, referrer rules, zero user JavaScript

Generated here

Every preview is a real render URL.

Markdown table to image

Styled tables for reports, previews, and agent output.

Eight chart types

Line, area, bar, scatter, pie, donut, and radar.

Hilo themes

Dark, light, studio, prism, aurora, mono, paper.

Generated bar chart showing render stack capabilities

Retina social defaults

Tuned for Open Graph and WhatsApp-style cards.

Generated Mermaid flowchart diagram image

Mermaid diagrams

Flowchart, sequence, class, gantt, and more, from diagram text.

Generated sequence-steps infographic image

Infographics

276 templates: timelines, steps, SWOT, quadrants, funnels, and more. See the gallery.

Mindmaps & hierarchies

Nested data becomes trees, org charts, and mindmaps. Icons by keyword.

URL contract

Readable routes for tiny specs and stored short links.

Use query params for quick renders, POST JSON or Markdown for heavier payloads, then resolve compact public image links from R2 and KV.

Chart image/chart.png Table image/table.png Infographic/infographic.svg Schema/openapi.json

GET /chart.png?type=line&labels=Jan,Feb,Mar&data=3,9,6&title=Revenue
GET /infographic.png?code=infographic+sequence-steps-simple...
POST /table/shorten?format=png
GET /s/c_0123456789abcdef01234567.png
GET /chart.svg?... for fast live previews

AI agent handoff

Send an agent the exact render contract in one click.

Open runtime llms.txt Open OpenAPI schema Open metadata JSON