Skip to content
Webmaster DB

JSON viewer and editor

Paste JSON to browse it as a collapsible tree with syntax highlighting and inline editing

Empty

Tree

Paste JSON on the left to browse it as a tree. Click any value to edit it; the text updates to match.

Waiting for input

About this tool

Use it to

  • Inspect deeply nested API responses without scrolling through raw text
  • Validate JSON instantly and locate parse errors
  • Edit a single value in a large JSON document without re-typing it
  • Collapse irrelevant branches to focus on a specific section
API response inspection
Paste a long API response and collapse all top-level keys to scan structure at a glance.
Quick value tweak
Click a string or number in the tree to edit it inline — no need to hand-edit the raw text.

Taggedjsonviewertreeeditorinspectcollapse