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XCON Viewer

Working

Load XCON/SKETCH. See it render.

What it's for

  • preview a SKETCH UI document in the browser
  • author UI structure as Markdown and ship JSON
7 GitHub starsPushed Runs in the browser154 checksDraw and diagram
Open XCON ViewerSourceChecked xconviewer.devLast change recorded

We have checked XCON Viewer 154 times since 15 Sept 2026, and it answered every time. Its visible text has not changed since we started watching.

What it does

XCON Viewer renders UI interfaces as structured documents in SKETCH, JSON, and related formats, with no scripts and no execution. You can try a live editor, open a Markdown playground, and import or export Figma. SKETCH is the compact Markdown authoring syntax; JSON is the canonical structure for APIs and tooling.

More in Draw and diagram

Each answered its most recent check.

Looking for something else?

What stands out

  • No account required
  • Free
  • Source is public

What we checked

  • App accessible

    The last check reached a working page.

  • Page rendered

    The last browser pass found a page that rendered.

  • Screenshot kept

    We captured a picture of the page.

  • Looked at by an agent

    An agent reviewed it. That is not a person.

Looked
10

10 browsers

Opened
25

25 browsers

Checks
154

154 checks

Watching
0

Nobody yet

Browsers on this site, not verified people.

Screenshot of XCON Viewer
Screenshot from our last capture

Development

7 snapshots kept

Slowing

Last commit was between three months and a year ago.

Evidence

Each bar is one request we made
Checks
154
Working · last 40
100%
Median response
1447ms
Watching since
15 Sept 2026

Of the last 40 checks, 40 answered (100%); the latest was on . Median response 1447 ms. Watching since .

Browser render check

Checked 1 month ago in a real browser

5 pages rendered

  • /rendered152ms
  • /docsrendered358ms
  • /examplesrendered508ms
  • /playrendered555ms
  • /specrendered758ms

How the browser check works

Activity

Watching since
Last content change
None seen yet
Unchanged for
47 days
Certificate expires
in 26 days
  • Development went from active to slowing22 days ago

How we track changes

What people say

No reviews yet.

Embed this status

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XCON Viewer — still works
[![XCON Viewer — still works](https://itstillworks.app/api/badge/xcon-viewer)](https://itstillworks.app/verify/xcon-viewer)