Developer Tools
YAML Validator
Validate simple pasted YAML snippets locally in your browser before converting, documenting, or sharing config examples.
Output will appear here.
YAML validation workflow tips
Use YAML Validator before moving a copied config snippet into docs, examples, or a JSON handoff. After the snippet passes, clean spacing with YAML Formatter, convert common key/value YAML with YAML to JSON, then inspect the output with JSON Formatter or JSON Validator.
If the source is JSON instead, start with JSON to YAML. For adjacent config snippets, use TOML Formatter or TOML to JSON before joining the JSON/YAML workflow.
Quick answer
YAML Validator is a browser-based yaml validator for checking copied developer data such as payloads, URLs, encoded values, identifiers, snippets, or logs without sending the input to a server.
- Primary task
- yaml validator
- Processing
- Runs on copied snippets in your browser; no account or saved input.
- Workflow
- Developer Data Toolkit
What this tool does
YAML Validator checks lightweight key/value YAML and scalar lists for common pasted-snippet issues such as missing colons, duplicate keys, unsupported indentation, and empty input. It is intentionally limited to quick browser-local checks and is not a full YAML parser for anchors, multi-document files, custom tags, block scalars, or advanced production schemas.
Common use cases
Validate simple YAML snippets before formatting, converting, documenting, or sharing config examples in developer workflows.
Use YAML Validator when you are working with copied API payloads, logs, encoded values, config snippets, identifiers, or debugging data and need a quick browser-local check before pasting the result into docs, tickets, tests, or another developer tool.
How to use it
- Paste simple YAML key/value data or a scalar list.
- Review the validation summary, supported-shape warning, and line/key counts.
- Fix any reported line-level issue, then format or convert the YAML when it is ready for a handoff.
Example workflow
Copy a small payload or encoded value from an API response, request URL, log line, or config file. Run the focused check here, confirm the output is readable, then continue with related developer data tools such as validation, formatting, decoding, timestamp conversion, or CSV/JSON conversion.
Privacy note
Client-side only: YAML validation runs in your browser and pasted YAML is not uploaded, stored, fetched, or logged.
FAQ
These answers focus on copied-snippet workflows, safe sample data, validation boundaries, and what to check before moving output into code, APIs, docs, or tickets.
3 focused answers for this page
Does YAML Validator upload my YAML?
No. Validation runs locally in your browser and does not send pasted YAML to ClearUtils servers.
What YAML does this validator support?
It checks common pasted key/value YAML and scalar lists for quick snippets. It is not a full YAML linter for anchors, custom tags, block scalars, multi-document files, or schemas.
What should I do after YAML validation passes?
Format the snippet with YAML Formatter, convert it with YAML to JSON, or compare the related JSON output with JSON Formatter and JSON Validator.