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JSON Crack logo
JSON Crack logo

JSON Crack

Visualize JSON, YAML, XML, and CSV as interactive graphs

open sourceupdated May 22, 2026

JSON Crack transforms structured data files into interactive, visual graphs that make complex nested data easy to understand. Paste or import JSON, YAML, XML, CSV, or TOML and instantly see the data as a navigable node graph with collapsible sections, search, and path highlighting. All processing happens client-side with no server storage.

JSON Crack solves a common developer pain point: understanding deeply nested data structures. Whether you are debugging an API response or exploring a configuration file, the tool renders any structured data as a visual graph where each key-value pair and nested object becomes a connected node. You can collapse and expand sections, search for keys or values, and click any node to see its full JSON path.

The tool supports JSON, YAML, XML, CSV, and TOML formats. An integrated editor lets you modify data and see the graph update in real time. The comparison mode diffs two JSON documents with visual highlighting of changes. JSON Crack can generate shareable image exports for documentation.

JSON Crack is open source under Apache 2.0 with over 24,000 GitHub stars. The React component can be embedded in any web application. VS Code and JetBrains extensions bring visualization into the development workflow. All processing happens in the browser—nothing is sent to external servers.

Pricing

Free web tool, open source (Apache 2.0)

full pricing breakdown →

Platforms

Web browser, VS Code extension, JetBrains plugin

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FAQ

What is JSON Crack?

JSON Crack transforms structured data files into interactive, visual graphs that make complex nested data easy to understand. Paste or import JSON, YAML, XML, CSV, or TOML and instantly see the data as a navigable node graph with collapsible sections, search, and path highlighting. All processing happens client-side with no server storage.

Is JSON Crack free?

Yes — JSON Crack is open source and free to use. Free web tool, open source (Apache 2.0)

Is JSON Crack open source?

Yes — JSON Crack is open source.

What are the best JSON Crack alternatives?

The top editor-verified JSON Crack alternatives are Page Agent, VisBug.