JSON Merge Tools

JSON merge tools combine two or more JSON documents into one — useful for layering configuration files, joining API responses, or building composite records from multiple sources. Different conflict-resolution strategies handle the same key appearing in both inputs.

Utility Store

Browse and discover pipeline utilities

Common tasks

  • Deep-merge two JSON objects
  • Combine paginated API responses into one array
  • Layer overrides on top of a base configuration
  • Resolve conflicts via configurable strategies

Why use a JSON merge tool?

Naive merging (Object.assign) silently drops nested fields. A deep-merge tool walks the whole tree, gives you control over array vs object conflicts, and produces predictable output even when the input shapes vary slightly between sources.