YAML Merge Tool

Parse two YAML documents and merge mappings locally with an explicit conflict strategy.

Base YAML

Overlay YAML

Array conflict behavior

ReadyMappings merge recursively; scalar conflicts use the overlay. Array behavior is explicit above. YAML comments and anchor presentation are not preserved after structural parsing.

How to use this YAML Merge Tool

Merge two YAML mappings with deep-replace or array-concat behavior. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.