Playground

Paste two or more OpenAPI documents (JSON or YAML, either is fine) and see what merge() produces, live, with no installation. This runs the same openapi-merge library the CLI calls -- not a re-implementation -- compiled for the browser.

For anything beyond the default merge behaviour shown here -- dispute, pathModification, operationSelection, duplicatePathHandling, and the rest -- see the library reference or the CLI configuration reference; this page intentionally keeps to what a merge does with no per-input configuration, so it stays quick to read.