Does this YAML to JSON converter upload my YAML?

No. YAML parsing and JSON generation run locally in your browser.

Can this convert multi-document YAML?

Yes. Multiple YAML documents are converted into a JSON array.

What parser does the browser use?

The page uses a local bundled js-yaml parser file served by WebUtilsLab.

Config Converter

YAML to JSON Converter

Convert YAML into formatted or minified JSON locally in your browser. Use it for CI files, Kubernetes snippets, OpenAPI fragments, app configs, and developer data workflows.

YAML input JSON indentation Sort JSON object keys

JSON output

YAML to JSON examples and workflows

Use this converter when configuration files need to become strict JSON for APIs, scripts, or tooling.

How to use this tool

Paste YAML from a config file, CI workflow, or API spec.
Choose JSON indentation and optional key sorting.
Convert to formatted JSON, minify it, or copy the output.

Real examples

Convert a GitHub Actions workflow step into strict JSON for inspection.
Inspect Kubernetes-style metadata and spec keys as JSON objects.
Turn OpenAPI YAML fragments into JSON examples for API docs or tests.

Common use cases

Move config data into JSON-based tools.
Debug YAML indentation by checking parsed JSON.
Normalize YAML before converting JSON to CSV.

Edge cases / errors

Invalid indentation can change YAML meaning.
Multiple YAML documents become a JSON array.
YAML-specific tags may not map cleanly to JSON.

Sample input/output

Input: service: api and replicas: 2.
JSON output: {"service":"api","replicas":2} with numbers preserved.
Multi-document YAML: separated documents become a JSON array.

Common errors and fixes

Bad indentation: align child keys consistently; YAML meaning changes with spaces.
Unexpected string: quote values such as on, off, or version numbers when type matters.
Lost comments: YAML comments are not part of JSON and will not appear in output.

Edge cases table

Case	What to check
Anchors and aliases	Aliases are resolved before JSON output when the parser supports them.
Dates	Quote date-like values when exact string preservation matters.
Custom tags	Remove or simplify YAML tags when you need strict JSON output.

Related workflow

Convert YAML to JSON, then inspect it with JSON Formatter.
Flatten JSON arrays with JSON to CSV when you need a table.
Convert JSON back to readable config syntax with JSON to YAML.

Continue the config and structured data workflow in your browser.

JSON to YAML Converter

Convert strict JSON back into readable YAML.

JSON Formatter / Validator

Format and validate JSON after converting YAML.

JSON to CSV Converter

Flatten JSON arrays into spreadsheet-ready CSV.

XML Formatter / Validator

Format and validate XML from APIs, feeds, and config files.