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JSON Viewer vs Herdr

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

JSON Viewer compared with Herdr
DetailJSON Viewer logo JSON ViewerHerdr logo Herdr
What it doesTransform JSON into Visual Graphs Community plugin marketplace for terminal user interface agents
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Open source
PricingFree plan includes upload and process small files, Chrome/VS Code extension, unlimited downloads, and visualization with tables and charts. Pro plan costs $2.49/month (monthly) or is available yearly, includes ad-free experience, compare and analyze data, edit JSON from diagrams, unlimited diagrams Not given
Key features
  • Interactive tree view with expand/collapse and color-coded syntax highlighting
  • Side-by-side JSON comparison with visual diff viewer
  • AI-powered JSON diagram generation from natural language
  • Convert JSON data into dynamic charts and graphs
  • Chrome extension for instant visualization on any webpage
  • Multi-format support for YAML, XML, CSV, TOML, TOON and Mermaid
  • REST API client with diagram visualization of responses
  • Customizable themes and multi-node color customization
  • Export diagrams as images and download graphs
  • Automatic plugin indexing from GitHub repositories
  • One-command plugin installation
  • No review queue for plugin publishing
  • Mission control layout interface
  • Customizable terminal layouts
  • Browsable plugin search and sorting
What makes it different
  • Supports 6+ data formats including JSON, YAML, XML, CSV, TOML and TOON in one tool
  • AI-powered assistant to generate and transform JSON using natural language commands
  • Chrome and VS Code extensions for seamless workflow integration
  • Privacy-first design with data stored only upon manual upload
  • Native mobile apps for Android and iOS for on-the-go visualization
  • Automatic GitHub-based plugin discovery with no submission process
  • Built-in agent management and monitoring interface
  • Fully open source under Apache 2.0 license
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)18 −1 (down) since last check73 no change since last check
Trust Flow (Majestic)918
Citation Flow (Majestic)2647
Referring domains (Majestic)1302281

4 details filled in for both companies.

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