Format YAML Online
Format YAML Online — format YAML online with a clean, normalized layout. It runs entirely in your browser, so nothing is uploaded and it works offline.
Format YAML Online is a browser-based web developer tool on WebDevToolsBase. Format YAML Online — format YAML online with a clean, normalized layout. It runs entirely in your browser, so nothing is uploaded and it works offline. To use it, paste your input and view the result directly in your browser — no signup and nothing to install.
Format YAML Online is a free YAML Tools utility that runs entirely in your browser — nothing you enter is uploaded.
Converts one document using JSON-compatible values and string mapping keys. Numbers that would change during conversion, negative zero, nonfinite values, timestamps, binary data, sets, ordered maps, pairs, merge keys, cycles and unknown tags are rejected. Quote values only when text is intended; this changes their type. Ordinary aliases are expanded for JSON. Comments, quote style and numeric spelling are not retained. Limits: 2 MiB of text, 50,000 expanded values and 100 nesting levels.
How to use Format YAML Online
- Paste one YAML document and select the indentation width.
- Read the normalized YAML output. Comments, original quotes and numeric spelling are not retained.
- Resolve any unsupported-value or syntax error before copying. Keep the original document separately.
- Copy the current completed result and verify it in the receiving application.
About this tool
This browser tool works with the supported JSON-compatible subset of YAML described above. A completed result means that this conversion succeeded; it does not validate an application schema, a deployment configuration or another programming language’s parser.
Keep the original source before formatting or conversion. Formatting normalizes presentation and removes comments. The operation runs locally in this browser and does not upload the entered document to a conversion service.
Frequently asked questions
What does Format YAML Online do?
Use Format YAML Online to format your input without installing anything using the Indent control; everything happens client-side.
Does Format YAML Online cost anything?
This local tool is free to use. Its supported data types and conversion-size limits are listed beside the result.
Where is my data processed by Format YAML Online?
Entirely in your browser — Format YAML Online keeps your data on your own machine and sends nothing anywhere.
How does Format YAML Online handle YAML indentation errors?
Format YAML Online reports the problem inline so you can fix the indentation, all within your browser.
Does Format YAML Online work on mobile?
Yes — Format YAML Online is just a web page and runs on any modern browser, including phones and tablets.