JSON Formatter YAML Viewer

The tool accepts raw JSON or YAML text, auto-detects the format, and applies formatting rules to produce a clean, readable payload. It can output pretty-printed JSON, normalized YAML, and optional minified variants; output type is dictated by the chosen operation.
Under the hood, the tool parses input into an abstract data model using standard libraries for JSON (RFC 8259) and YAML (1.2). It then applies transformations such as indentation normalization, key formatting, and optional key sorting. If conversion is requested, it serializes the model to the target syntax with consistent rules. If syntax errors exist, the tool returns structured error objects with line and column information for precise correction.
Audience includes developers, data engineers, API teams, and DevOps practitioners who edit payloads or configuration files. The unique value lies in handling both JSON and YAML in a single, client-side tool with fast feedback, clear error reporting, and flexible output options. Core features include syntax validation, pretty formatting, minification, and format conversion, all without server interaction. Use cases cover API payload preparation, config file standardization, and data pipeline readiness.