GT
GenTradeTools

JSON Viewer & Explorer

Parse, explore, and search JSON with tree view and statistics

Load sample
Input
Loading editor...

Statistics

Paste JSON to see stats

Features

Tree View

Expand and collapse nested structures interactively

Smart Search

Find keys and values with case-sensitive options

Statistics

View size, depth, and type distribution at a glance

Monaco Editor

VS Code-powered editing with syntax highlighting

Client-Side

100% browser-based, your data never leaves

Export

Download formatted or minified JSON files

Developer Tools

What is a JSON Viewer?

A JSON viewer is a tool that parses and displays JSON data in a human-readable format. It helps developers quickly understand the structure of complex data by providing features like syntax highlighting, collapsible tree views, and search functionality.

This online JSON viewer processes everything locally in your browser—no data is sent to any server. Whether you're debugging API responses, exploring configuration files, or validating webhook payloads, the viewer helps you navigate nested structures with ease.

How to Use

01

Input

Paste JSON or upload a file

02

Explore

Use tree view to navigate

03

Search

Find specific keys or values

Common Use Cases

API Debugging

Inspect REST API responses to understand data structures, identify missing fields, and debug integration issues.

Webhook Inspection

Validate incoming webhook payloads, verify signatures, and ensure data integrity before processing.

Config Management

Explore package.json, tsconfig, and other config files with collapsible tree navigation.

Data Analysis

Understand complex JSON exports from databases, analytics platforms, or third-party services.

Analysis playbook for the JSON Viewer

Explore, filter, and annotate JSON safely with tree views, search, and artifact capture.

Exploration essentials

Tree navigation, path copy, and value filters accelerate triage.

Advanced Topics

  • JSONPath queries; document saved filters.
  • Performance: virtualized trees for large docs.
  • Security: client-side only; avoid uploads.
  • Accessibility: keyboard navigation and readable contrast.

Reviewer Playbook

  • Capture critical paths and values with screenshots.
  • Hash artifacts; attach to tickets.
  • Link findings to schema docs.

Onboarding Labs

  • Triage webhook payloads.
  • Compare environments; spot drift.
  • Build saved searches for support macros.

Metrics

  • Triage time per incident.
  • Duplicate ticket reductions.
  • Knowledge base accuracy improvements.

Final Thoughts

Make the viewer your evidence console — fast, private, and reproducible.

Incident response war room tactics with the JSON Viewer

Equip SRE, support, and security teams with a structured way to analyze live payloads during stressful incidents.

Rapid payload triage

When alerts fire, responders paste logs or webhook events into the JSON Viewer to collapse sections, search keys, and highlight anomalies. The tree view surfaces missing fields faster than grepping raw text. Responders tag the panel with the incident ID so later reviewers can reconstruct exactly what data they saw.

Shared diagnosis

War rooms often include engineers, analysts, and PMs. Screen share the viewer so everyone sees the same structured data. Toggle dark mode for overnight shifts, use the search bar to hop between fields, and capture screenshots of suspicious nodes. This shared view prevents parallel investigations from drifting.

Security forensics

Security teams analyze suspicious API calls by pasting them into the viewer, enabling the diff mode to compare against known-good payloads. Differences are highlighted immediately, speeding up containment. Investigators attach the diff screenshot to the incident record, satisfying auditors who ask how the malicious request was identified.

Customer communications

Support leads copy sanitized payload snippets directly from the viewer into customer updates. Because formatting is preserved, customers can reproduce the issue or confirm fix behavior. Pair this with the Hash Generator to prove that the payload shared matches the one observed during the outage.

Automation follow-ups

Post-incident, engineers export the prettified JSON and commit it to a regression test fixture. Having the canonical payload in Git ensures future changes run against the exact structure that caused the incident. Document in the runbook which viewer settings (sorting, collapsing) were used so the fixture stays faithful.

Training and tabletop drills

Use the viewer during tabletop exercises to simulate noisy logs. Trainees must extract key evidence within a time limit, sharpening their pattern recognition. Scoring is easy: facilitators hide fields and award points when participants find them via search or collapsible sections.

FAQ

Is my data secure?

Yes. Everything runs in your browser—no data is sent to any server.

Can I view large JSON files?

Yes. The viewer handles large files efficiently with virtualized rendering.

What's the difference between views?

Formatted shows indented JSON, Tree provides collapsible navigation, Raw shows minified output.

100% Client-Side·Powered by Monaco Editor·No Data Transmission