YAML โ JSON Converter
Convert YAML to JSON and JSON to YAML instantly. Validate structure, catch formatting issues, upload files, copy results, and export clean output for developer, DevOps, and config workflows.
Converter Controls
Convert between YAML and JSON, upload files, validate structure, and debug input errors with line highlighting.
Conversion mode
Best for
Kubernetes, GitHub Actions, app config files, API payloads, CI pipelines, and infrastructure data.
Status
Paste YAML or JSON and click convert or validate.
Mode
YAML โ JSON
Indentation
2 spaces
Input lines
11
Error location
-
Included features
- YAML to JSON and JSON to YAML conversion in one tool.
- Top control panel for larger input and output editors.
- Line numbers in both panes for easier navigation.
- Error line highlighting in the input gutter.
- One-click jump to the detected error line.
- Code-frame style error preview for invalid input.
- Upload, validate, convert, swap, copy, and download support.
Input error details
Paste YAML or JSON and click convert or validate.
An exact line and column could not be detected from the parser.
What can this YAML and JSON converter do?
This tool converts between YAML and JSON, validates both formats, highlights input errors, supports file upload and download, and helps you clean configuration data for apps, APIs, CI pipelines, and infrastructure tooling.
Common use cases
Use it for Kubernetes manifests, GitHub Actions configs, API payloads, settings files, infrastructure-as-code snippets, and debugging serialized data quickly in your browser.
Related tools
Try other useful SmartTools that are related to this tool.
JSON Compare Tool
Compare two JSON files or JSON strings with structural diff, key-path changes, validation, and side-by-side output.
Open tool โBase64 Encoder / Decoder
Encode and decode Base64 with text and file support, URL-safe mode, copy, download, and instant output.
Open tool โNumber Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal with validation, copy, and instant synced output.
Open tool โURL Encoder / Decoder
Encode and decode URL strings with text and file support, plus-sign handling, copy, download, and instant output.
Open tool โDiff Checker
Compare text, code, and config files side by side with change summaries, whitespace and case options, file upload, and downloadable reports.
Open tool โJWT Decoder
Decode JWT tokens with parsed header and payload, expiry checks, validation hints, copy, upload, and downloadable output.
Open tool โ