JSON Formatter
Paste your JSON below and get an interactive, color-coded tree view. Validate syntax, copy formatted output, or export as a file — all processed locally in your browser.
Frequently Asked Questions
What is a JSON formatter?
A JSON formatter (also called a JSON beautifier or pretty-printer) takes raw, minified, or messy JSON text and presents it in a clean, indented structure that is easy to read and navigate. Our tool goes a step further by rendering an interactive tree view with expand/collapse nodes and color-coded value types.
Is my JSON data safe?
Yes. All JSON processing happens entirely in your browser using JavaScript. Your data never leaves your device — nothing is uploaded to any server. You can safely format sensitive configuration files, API responses, or credential payloads without privacy concerns.
What types of values does the tree viewer highlight?
The tree viewer color-codes values for quick visual scanning: strings appear in red, numbers in blue, booleans (true / false) in dark blue, and null in gray. Object and array keys are rendered in bold, and every compound node shows a clickable ▶ / ▼ arrow to expand or collapse nested content.
Can I export the formatted JSON?
Absolutely. Use the Copy JSON button to copy a pretty-printed version to your clipboard, or click Export to download the formatted JSON as a .json file. Both actions use your browser's built-in capabilities with no server involvement whatsoever.