JSON Visualizer
Turn any JSON payload into an interactive node graph. Every object and array becomes a node, scalar fields sit inside it, and nested structures branch out as connected nodes — so you can see hierarchy, arrays and relationships at a glance. Drag to pan, scroll to zoom, and fold branches or expand to any depth. Everything runs locally in your browser.
Paste or type JSON to see it as an interactive graph.
Why a graph view of JSON?
Deeply nested JSON is hard to read as text. Braces and brackets pile up, and it's easy to lose track of which array an object belongs to or how deep a value is buried. A node graph flattens that cognitive load: the shape of your data becomes something you can see. Foreign-key-style references, repeated array items and one-off config objects all read at a glance.
Explore by depth
Use the Depth controls to reveal the graph one level at a time — great for large API responses where you want the top-level shape first, then drill in. Fold an individual node with the ＋/－ toggle to hide a branch you don't care about, or expand everything to inspect the full tree.
Private by design
The graph is built entirely in your browser using the same engine that powers the JSON Wallet editor. Your JSON is never uploaded, logged or sent to any server — you can even use it offline once the page has loaded.
Frequently asked questions
Is my JSON uploaded anywhere?
No. Parsing and rendering happen entirely in your browser — nothing leaves your device.
How big can the JSON be?
The graph handles thousands of nodes. Very large documents are capped (around 4,000 nodes) so the view stays responsive; a note appears when that limit is reached.
Can I collapse or expand everything at once?
Yes. Use Expand all / Collapse all, or pick a depth level to show only the first N levels of the tree.
What if my JSON has a syntax error?
The graph waits for valid JSON and shows a hint until the syntax is fixed. To auto-repair broken JSON, use the JSON editor.