Input / output
JSON panel
YAML result
Workspace
JSON ↔ YAML Converter
Paste config data or upload files, then convert between JSON and YAML with spacing controls and instant output.
Round-trip readyFile uploadLocal processing
Input / output
YAML panel
JSON result
About this tool
What is this?
JSON (JavaScript Object Notation) and YAML (YAML Ain't Markup Language) are two popular ways to store structured configuration and API data. JSON is compact and widely used in web APIs; YAML is often preferred for config files because it is easier to read and edit by hand.
This tool converts between the two formats instantly in your browser — useful when moving Kubernetes manifests, Docker Compose files, CI configs, or API payloads between JSON and YAML workflows.
- Turn API JSON responses into readable YAML config files.
- Convert YAML deployment manifests into JSON for scripts or tooling.
- Validate structure while switching formats before committing changes.
- Prepare sample configs for documentation, demos, or testing.
Quick guide
How to use it
- 1
Paste JSON into the left panel or YAML into the right panel, or upload a matching file.
- 2
Pick JSON spacing (none, 2 spaces, or 4 spaces) and YAML indent depth if needed.
- 3
Click JSON → YAML or YAML → JSON to generate output in the opposite panel.
- 4
Use Copy or Download to grab the converted result, or Load sample to try the demo data.
- 5
Use Reset samples to restore the starter JSON and YAML examples.
GuideConvert JSON and YAML in three steps3 steps
01
Paste or upload your data
Add JSON or YAML in either panel, or upload a .json, .yaml, or .yml file to load it into the workspace.
02
Choose output spacing
Set JSON indentation or YAML spacing before converting so the result matches your config style.
03
Convert, copy, or download
Run JSON → YAML or YAML → JSON, then copy the output or download it as a ready-to-use file.
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FAQJSON and YAML conversion questions
Does this JSON to YAML converter upload my data?
No. Conversion runs entirely in your browser. Your JSON and YAML never leave your device unless you choose to download or copy the result.
Can I convert YAML back to JSON?
Yes. Use the YAML panel and click Convert to JSON for a round-trip workflow between config formats.
What YAML features are supported?
The converter handles common YAML structures such as mappings, sequences, strings, numbers, booleans, and null values. Complex anchors and custom tags may not round-trip perfectly.