Santekno/tools
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JSON → YAML

Convert JSON to YAML, preserving key insertion order. Completes the YAML ↔ JSON round-trip.

Processed in your browserUpdated · Jan 2026
Input
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Output
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How to use JSON → YAML

Paste your input on the left, choose the options you want, and the output appears instantly on the right. Everything runs in your browser — none of your data is sent to a server.

  • Paste or type your input in the INPUT panel
  • The output regenerates automatically as you type
  • Use Copy to put the result in your clipboard
  • Click Sample to load a working example

What is JSON → YAML?

JSON → YAML converts JSON input to equivalent YAML output via js-yaml. Key insertion order is preserved (no alphabetical sort). The output uses 2-space indent by default (toggle to 4), unquoted strings where safe, and explicit `null` / `true` / `false` tokens. Pairs with YAML Formatter (the inverse direction). This tool is part of santekno's developer toolbox — a curated collection of utilities built for engineers who care about speed, privacy, and simplicity.

Common use cases

  • Debugging API payloads and integration issues
  • Inspecting tokens, hashes, or encoded strings during development
  • Generating fixtures and sample data for tests
  • Sharing readable output with teammates in code reviews

FAQ

Sorted output destroys author intent. Source order usually carries semantic meaning (e.g., section ordering in Kubernetes manifests).