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Focused tools

10 YAML jobs

Runtime

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Private YAML tools for configuration work

Validate, format, convert, query, compare, merge, and flatten YAML without uploading secrets or configuration values.

Every operation remains in the active browser tab.

Choose a YAML job

Each route has its own input, validation, and result contract.

YAML ValidatorParse one YAML document strictly and report syntax diagnostics, document shape, aliases, depth, and size without transforming the source.Open tool
YAML FormatterParse a bounded YAML document and serialize it with a chosen indentation so mappings and sequences are easier to review.Open tool
YAML MinifierSerialize a parsed document with compact flow collections for a smaller transport or fixture representation while preserving its data model.Open tool
YAML to JSON ConverterTranslate YAML mappings, sequences, and JSON-compatible scalars into strict JSON without uploading the source document.Open tool
JSON to YAML ConverterParse strict JSON and write a readable YAML representation with explicit indentation and no cloud conversion step.Open tool
YAML Schema ValidatorCheck parsed YAML values against a separately supplied JSON Schema and return structured instance paths for each supported violation.Open tool
YAML Path QueryNavigate mapping keys and sequence indexes with a deliberately small path language, then serialize the selected value for inspection.Open tool
YAML ComparatorParse both documents and report additions, removals, and changed values at stable paths instead of producing a noisy line diff.Open tool
YAML MergerCombine a base mapping with an overlay under a chosen collision policy instead of relying on undocumented precedence.Open tool
YAML FlattenerWalk nested mappings and sequences, emit one leaf per unambiguous path, and preserve scalar types in a reviewable JSON object.Open tool

Start with the YAML formatter

Normalize one document here, or open a dedicated route for syntax, conversion, schema, path, comparison, merge, or flattening work.

Format YAML

Inputs are limited to 1 MiB and stay in this browser tab.

Paste or edit the source. Tool Swim does not upload or save it.

Formatted YAML

Nothing is placed in a URL, account, preset, or remote log.

A bounded local configuration workspace

YAML often contains deployment details, environment names, endpoints, and operational settings. Tool Swim parses it inside the active tab with no upload endpoint, cloud save, public execution API, preset store, or content-bearing telemetry.

Inputs and outputs are capped at 1 MiB, nesting and aliases are bounded, and the path tool accepts only property and index navigation. These limits keep failures predictable and prevent arbitrary expression evaluation.

Local processing does not make copied output harmless. Review generated files before committing or sharing them, especially after conversion, merge, or flattening changes representation.