Free & Secure

The Best JSON Viewer
Chrome Extension

Parsy transforms raw API responses, config files, and tokens into beautiful, interactive views — instantly. No copy-pasting, no external tools.

Install on Chrome Use Web Version
Parsy JSON tree view
How it works

From raw JSON to readable tree in one click

No copy-pasting into a website, no uploading your data anywhere. Parsy renders JSON where you already are.

1. Auto-detect
Parsy recognizes JSON API responses and .json files automatically
2. Instant tree view
Nested objects and arrays become a collapsible, color-coded tree
3. Search & navigate
Ctrl+F jumps between keys and values across the whole document
4. Copy what you need
Click any key, value, or path to copy it to your clipboard
Use cases

Built for everyday JSON debugging

REST & GraphQL APIs
Inspect responses straight in the tab, no Postman needed
Config & manifest files
package.json, tsconfig.json, manifest.json and more
Debugging webhooks
Read large, deeply nested payloads without losing your place
Data exports
Browse JSON exports from databases and analytics tools
Features

A JSON formatter built for developers

Every feature is crafted for speed and productivity. No bloat, no tracking.

Interactive Tree View

Collapsible nodes at every level. Click any value to copy it instantly. Auto-expand depth configurable from settings.

Real-Time Search

Press Ctrl+F to search across all keys and values. Navigate matches with Enter and Shift+Enter for lightning-fast inspection.

Dark & Light Themes

Premium glassmorphism design in both modes. Switch themes instantly from the toolbar or popup panel.

Handles Deep Nesting

Auto-collapse deeply nested objects and arrays so huge JSON payloads stay scannable instead of overwhelming.

File Viewer

Open the built-in viewer to drag & drop local .json files. Works fully offline, 100% local.

Zero Dependencies

100% pure JavaScript. No external libraries, no network requests, no tracking. Your data never leaves your browser.

See it in action

Premium developer experience

Every pixel is designed to reduce friction and enhance readability.

JSON tree view
JSON Tree View — Dark Mode
CSV table view
CSV Table View — Filterable
File viewer
File Viewer — Drag & Drop
10
Formats supported
0
Dependencies
0 B
Data sent externally
∞
Files you can view

Stop squinting at raw data

Install Parsy in one click. Free forever, no account needed.

Install on Chrome — It's Free

Why is Parsy the best JSON viewer for Chrome?

As a developer, you encounter raw JSON APIs and config files daily. The default browser view is an unreadable wall of text. Parsy acts as an intelligent JSON formatter and viewer that automatically beautifies JSON data directly in your browser tab — no pasting into a third-party website required.

Enjoy a highly interactive tree view where you can collapse deeply nested objects, copy specific paths or values with a single click, and use the lightning-fast search (Ctrl+F) to pinpoint exactly what you need. It completely replaces the need for online JSON formatters that compromise your privacy by sending your data to a server.

Frequently asked questions

Is Parsy's JSON viewer really free?

Yes. Parsy is 100% free with no account, no trial limits, and no premium tier. It's funded by optional tips, not by selling your data.

Does my JSON data ever leave my browser?

No. Parsy formats and renders JSON entirely on your device using pure JavaScript. Nothing is uploaded to a server, which makes it safe for API keys, tokens, and internal API responses.

Can Parsy format minified or very large JSON files?

Yes. Parsy automatically detects minified JSON in any browser tab or local file and re-indents it into a readable, collapsible tree, even for deeply nested or large payloads.

Does Parsy support JSON Lines (NDJSON)?

Parsy focuses on standard JSON and JSON API responses. For newline-delimited JSON logs, use the File Viewer to drag and drop the file and inspect each line's structure.

How do I view a local .json file with Parsy?

Open the Parsy web app or the extension's File Viewer and drag your .json file in, or use "Browse Files" to select it. It renders instantly with the same tree view used for API responses.

More Parsy tools

XML Formatter · CSV Viewer · YAML Viewer · JWT Decoder · Markdown Preview