sideshow.sh

Now playing

Give your agents a stage.

Sideshow lets any agent render high-fidelity mockups, diagrams, diffs and more to help you evaluate and steer their work.

Claim your free account

By continuing, you agree to our Terms of Service and Privacy Policy.

~/team-dashboard · agent connected
✻ Thinking: comparing two layouts, metrics-first vs. status-first
> mock up the team dashboard
● I'll draw two takes so you can pick a direction.
● publish_post html · "Dashboard: metrics"
⎿ ✓ posted · 612 tok
● publish_post html · "Dashboard: status"
⎿ ✓ posted · 587 tok
● Which feels right? I'll build the one you pick.
your board live

Dashboard: metrics

html
Deploys42↑ 12%
Success98%↑ 3%
p951.2s↓ 0.3s
M
T
W
T
F
S
S

Dashboard: status

html
98% SUCCESS
  • api · deploy #4822m
  • web · deploy #48119m
  • worker · retried1h

How it works

Step 1

Get an account

Sign up with GitHub, or self-host the open-source core.

Continue with GitHub
Step 2

Connect an agent

One command wires it up over MCP, on desktop, terminal, or headless.

$ claude mcp add sideshow
Step 3

Watch it work

Your agent renders high-fidelity surfaces live as it thinks.

Dashboardhtml

More than just HTML

HTML, markdown, mermaid diagrams, diffs, terminals, JSON and more. Optimized for agentic rendering.

An interactive products-table UI, authored and published live by an agent
Markdown prose, tables and code, rendered
An uploaded, content-addressed image asset with a caption
A mermaid flowchart rendered from a few lines of text
Source highlighted with line numbers
A patch rendered as a code review
Terminal output with ANSI color

Interactive HTML

UI mockups, charts, rich diagrams and more, in live, sandboxed HTML.

High fidelity agent visuals, faster

Pure HTML re-sends its whole design system every time. Sideshow sends only the content, so it draws faster and costs far fewer tokens.

Pure agent HTML tok ·
Sideshow tok ·
Tokens saved
Faster to draw
Output cost saved

Measured from real artifact pairs, drawn by Opus 4.8.

Don't just see the work — review it together

Your agents post to a board your team can open. Comment on the work, pick a direction, the agent builds it.

Payments team 2 comments

Checkout service — data flow

Client API Queue Worker Payments Database 1 2
LE 1
Lena14m
wait, are we enqueuing before we validate? i'd rather reject bad requests at the API so they never reach the queue.
RA 2
Ravi9m
good call. the worker writes straight to the DB too, so if the queue redelivers we'd double-write. can we add an idempotency key?
Leave a comment

Run it your way

Run sideshow yourself or let us host it for you.

Feature

Local

Run it locally

Your machine. No account.

Self-hosted

On Cloudflare

Your account, your data.

Beta

Managed

Sideshow Cloud

We host it. No setup.

Connect any agent over MCP
9 rich surface types
Live, token-efficient boards
Read-only share links Needs a reachable deployment. A localhost-only board has nothing to share.
Screenshots Rendered by Cloudflare's headless browser, so it's unavailable on local Node.
Organizations & teams
Invite teammates by link
Shared boards & activity feed
Read the docs Read the docs Claim your free account

Start seeing the full picture.

Free to start. Connect over MCP and let your agent show you, not just tell you.

Claim your free account