Skillselion vs JSONViewerTool
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Skillselion compared with JSONViewerTool
| Detail | 
Skillselion | 
JSONViewerTool |
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| What it does | Directory of Claude Code skills, MCP servers and marketplaces ranked by real installs
| Fast, browser-based JSON viewer, formatter, validator and converter that runs entirely client-side
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| Stage | Not given
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| Founded | Not given
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| Based in | US
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| Pricing model | Not given
| Free
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| Pricing | Browsing the catalog, using the public catalog API, and accessing research datasets marked CC BY are all free. No paid plans or subscription charges.
| Not given
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| Key features | - Daily catalog updates from live registries
- Daily install count snapshots
- Automatic removal of dead repositories
- Open datasets with CC BY licensing
- Dated, frozen research censuses
- Public catalog API without API keys
- MCP protocol integration
| - 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
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| What makes it different | - Ranked by actual adoption metrics, not paid placements
- Independent from tool makers
- Comprehensive ecosystem measurement through research
- Automatic quality gates and duplicate consolidation
- All statistics attributed and dated with no invented figures
| - 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
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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
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 35 ▲ +1 (up) since last check | 9 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 21 | 7 |
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| Citation Flow (Majestic) | 43 | 30 |
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| Referring domains (Majestic) | 187 | 48 |
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3 details filled in for both companies.
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