If you’re tired of manually crafting diagrams with PlantUML just to understand your JSON structures, it’s time for a smarter, modern alternative.
Say hello to jsonviewer.tools — the ultimate tool to visualize, explore, and export JSON as interactive diagrams with zero friction
Why Developers Are Moving Beyond PlantUML
PlantUML is powerful for UML diagrams. But when it comes to real-time JSON exploration, it starts to feel like a workaround. Here's why developers are switching:
No More Manual Syntax
Paste your JSON and get a beautiful, interactive graph instantly.
Tree, Graph, and Table Views
Switch between formats to suit your workflow — zoomable graphs, expandable trees, and editable tables.
Quick Export & Share
Export diagrams as images or generate shareable links for your team.
Support for JSON, YAML, and CSV
Not just JSON — parse and visualize multiple data formats in one place.
Built-in Tools for Developers
Compare JSON, change graph directions, visualize MongoDB schemas, and even test REST APIs visually
Standout Features of jsonviewer.tools
Visualize Instantly
No DSLs. No config. Just paste your JSON — we’ll handle the rest.Deep Dive into Any Field
Double-click any key to isolate and explore that part of the data visually.REST API Playground (Beta)
Use our playground to run queries, visualize responses, and debug schema designs with ease.Built for Developers
Dark mode, theme customization, 3D visualization links, and performance to handle large files.
Designed for Modern Dev Workflows
Unlike PlantUML, which is better suited for UML class diagrams and static documentation, jsonviewer.tools is built specifically for:
Backend & API Developers
Data Engineers & Architects
MongoDB Users
Anyone working with large or nested JSON/YAML/CSV files
TL;DR: Visualize JSON the Way You’ve Always Wanted
No more script-based diagramming.
No more cluttered DSL.
Just a clean, modern, and developer-first tool.
Try jsonviewer.tools today — and experience the best PlantUML alternative for JSON and beyond.
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