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YAML Explorer

Loads YAML from text or a URL and shows it as a collapsible tree, remembering which nodes you opened.

Artifact by Simon Willison

IndexedApache-2.0Developer toolsNo sign-up

Use it

Opens tools.simonwillison.net in a new tab. Nothing to install.

You provide
YAML text or URL
You get
Collapsible tree view
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
AI-built app
Source
Open source
Link check
Answered on Oct 31, 2026

About

YAML Explorer is an AI-built single-page app in the developer tools category (yaml viewer). It opens in your browser, so there is nothing to install. You provide YAML text or URL and get collapsible tree view. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (simonw/tools).

Category: Developer tools · yaml viewer

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Details

Auth
No auth
License
Apache-2.0
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

More from Simon Willison

Cite this page

YAML Explorer: free online tool. Agent Mart. https://agentmart.dev/artifacts/yaml-explorer (last updated 2026-10-31)