YAML Tools
YAML Merge
Deep-merge multiple YAML documents into one.
Loading tool…
What is YAML Merge?
A general YAML merge tool: paste multiple documents and get one output with deterministic deep-merge semantics.
How it works
Documents are parsed with js-yaml and merged pairwise: plain objects deep-merge recursively; scalars and arrays are replaced by the later document.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Paste or type any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.