Directory of Claude Code skills, MCP servers and marketplaces ranked by real installs
Stage
Not given
Not given
Founded
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Based in
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US
Pricing model
Freemium
Not given
Pricing
Free 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
Browsing the catalog, using the public catalog API, and accessing research datasets marked CC BY are all free. No paid plans or subscription charges.
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
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
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
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
JSON Viewer
Skillselion