NodalJSON – Fast and Beautiful JSON viewer and formatter

About

NodalJSON transforms raw JSON responses into a beautifully formatted, interactive tree — right in your browser tab. No copy-pasting into external tools, no context switching.

Made by developers handling JSON files every day, this extension offers advanced features like on other. Read on to learn about the features, or click install to find out on your own!

FEATURES

• Interactive tree view — expand and collapse any node with a click
• JSONC support — parses single-line (//) and multi-line (/* */) comments natively
• Smart copy actions — hover any row to instantly copy its value, key, key:value pair, or full dot-notation path
• Color swatches — renders a live color preview next to any HEX or RGB string
• Epoch timestamp hints — automatically converts Unix timestamps to human-readable dates inline
• Stringified JSON parsing — detects embedded JSON strings and lets you expand them in place
• Raw view toggle — switch between the interactive tree and the original plain text instantly
• Viewport navigation — skip-to-next and scroll-to-start helpers for massive files
• Dark / Light / System theme — follows your OS or pick manually
• Custom fonts — choose from several monospace options
• Configurable hover actions — choose exactly which copy buttons appear per row
• JSONL / NDJSON support — renders newline-delimited JSON streams line by line
• Download button — save the formatted JSON directly to disk

Works automatically on any URL returning JSON — API endpoints, local files, and more!