JSONViewerTool vs Herdr
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
JSONViewerTool compared with Herdr
| Detail | 
JSONViewerTool | 
Herdr |
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| What it does | Fast, browser-based JSON viewer, formatter, validator and converter that runs entirely client-side
| Community plugin marketplace for terminal user interface agents
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Open source
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| Pricing | Not given
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| Key features | - View JSON in tree, code, and text modes
- Format and beautify unreadable JSON
- Validate JSON and catch syntax errors
- Minify JSON to reduce payload size
- Convert JSON to CSV, Excel, YAML, and XML
- Decode JWT tokens and inspect claims
- Generate UUIDs and encode or decode Base64 data
- Compare and diff JSON structures
- Sort, search and transform JSON data
- All processing runs 100% client-side in browser
| - 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
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| What makes it different | - Privacy-first: all processing runs client-side with no server uploads, storage or logging
- No installation or signup required; works directly in modern web browsers
- Side-by-side input and output view for easy comparison and debugging
- Comprehensive toolset covering viewing, formatting, validation, conversion and comparison in one place
- Works on desktop and mobile browsers without any setup time
| - Automatic GitHub-based plugin discovery with no submission process
- Built-in agent management and monitoring interface
- Fully open source under Apache 2.0 license
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 9 ▲ +2 (up) since last check | 73 ● no change since last check |
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| Trust Flow (Majestic) | 7 | 18 |
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| Citation Flow (Majestic) | 30 | 47 |
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| Referring domains (Majestic) | 48 | 2281 |
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4 details filled in for both companies.
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