JSON Formatter & Beautifier
Clean, validate, and understand JSON in a click. Paste, upload, or edit JSON and instantly see well‑formatted output with clear error messages if something is wrong.
Input
Output / Errors
What this JSON formatter does
This tool formats JSON with consistent indentation, validates the structure, and shows exactly where parsing fails. It is ideal for checking API responses, config files, or log payloads before using them in your code.
JSON formatter and beautifier
Beautify compact or messy JSON so it is easy to read. Nested objects and arrays are indented clearly, making it simple to follow keys, values, and overall structure.
JSON validator with line and column
When the JSON is invalid, the validator points to the exact line and column. It also gives a short explanation so you know whether you are dealing with a missing comma, extra bracket, or unclosed string.
JSON viewer for quick inspection
After formatting, the output panel acts as a JSON viewer. Scroll through, search with your browser, and copy only the sections you need for documentation or debugging.