Coding and developer tools

Free YAML Validator and Formatter.

Syntax findings and formatted YAML.

Review the supplied YAML beside the target application's requirements and distinguish syntax corrections from configuration decisions.

Chrome extension + account required.
25 free automation tasks/month across tools. Browser-provider limits apply.

WHAT TO HAVE READY

YAML and target application schema if supplied.

YOUR STARTING POINT

A task you can make yours.

Copy it here. Paste it into WebAct when you are ready.

This page prepares your prompt. The task runs in WebAct.

01

Make the task yours.

Review the prompt above. Add your goal and any requirements that matter.

02

Bring it to WebAct.

Open WebAct, paste the task and provide the data and rules. Review any proposed calculation or code action before approving it, then check a known example.

03

Check the useful part.

Check formulas, code and calculations against known inputs in the appropriate runtime. Review actions before execution and keep the original data available.

A PRACTICAL GUIDE

How to use the YAML Validator and Formatter.

YAML syntax validation is different from validating a specific application's configuration. State the parser and schema assumptions when they matter.

Make the workflow fit your task.

Parse YAML using the intended version or parser and inspect the reported syntax issue. Preserve scalar types and nesting while formatting, then validate application-specific keys separately against the target configuration rules.

What you provide
YAML and target application schema if supplied.
What you get
Syntax findings and formatted YAML.

See the input and the result.

Illustrative input and output · a teaching example, not a live WebAct run

Example input

Repair the indentation in this YAML mapping. services should contain two sibling mappings, web and worker:
services:
  web:
    port: 3000
   worker:
     enabled: true

Completed example

services:
  web:
    port: 3000
  worker:
    enabled: true

Both services now share the same indentation level. This fixes the supplied structure; no application-specific schema was provided.
Download this example

Load this input into the prompt, then copy it to WebAct to try the task. Your result may differ from the illustration.

Decisions and troubleshooting.

Does valid YAML guarantee a working application configuration?

No. The document can parse while containing unsupported fields or incorrect application values. Schema and runtime checks remain separate.

Why does a value change type after formatting or parsing?

Check quoting and parser conventions. A token that looks like text may be interpreted differently under the selected YAML rules.

Try it with your own source.

Replace the example with your material in the task prompt. Keep the requirements you need, then copy the task into WebAct.

Customize and copy the task ↑
BEFORE YOU BEGIN

Using WebAct.

The prompt and example are available here. Run your task in the WebAct Chrome extension.

Is this tool free?

You can copy and edit the prompt here for free. To use it with WebAct, install the Chrome extension, create and verify your account, and connect an available browser ChatGPT session. The Free plan includes 25 user-started automation tasks per calendar month, shared across tools. Ordinary browser Chat is separate; provider limits apply.

Learn about shared context in our privacy policy and choosing Chat or Task.

FROM A PROMPT TO YOUR OWN WORK

Bring the task to your page.

Install WebAct, add your source material and make the result yours.

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