JSON CamelCase Formatter

This tool takes a JSON payload and renames object keys to camelCase while leaving all values intact. It operates recursively, so nested objects and arrays are transformed consistently without altering data relationships. Conceptually, the process tokenizes each key on underscores, hyphens, and spaces, then recombines tokens into camelCase, preserving existing camelCase keys when appropriate. The tool validates input JSON, returning a transformed JSON string along with a concise transformation summary that reports the number of keys renamed and any issues discovered. Benefits include improved naming consistency across microservices, easier code generation, and smoother API data contracts. Core value lies in automated standardization, reliable handling of nested structures, and clear visibility into changes via the summary output. Use cases include API payload normalization, ETL data cleaning, and preparing datasets for schema-driven development. Advanced features include optional acronym preservation, depth limiting, and streaming processing for large payloads to control memory usage. The tool is language-agnostic and focuses strictly on key renaming; it does not modify values, reorder arrays, or perform type conversions. It is especially helpful for teams migrating from snake_case or kebab-case naming to a unified camelCase standard across services and storage systems.