JSON Viewer
Client-sidePopularExplore JSON as an interactive tree with paths, types, and expandable nodes — all processed locally in your browser.
Processed in your browser — data stays on your device
About JSON Viewer
JSON Viewer turns raw JSON into an interactive tree so you can expand nested objects, scan types, and follow paths like $.user.tags[0].
It is ideal when a pretty-printed wall of text is not enough and you need to navigate structure visually — still fully offline in your browser.
Features
Expandable tree
Open and close objects and arrays to focus on the branches you care about.
Path labels
Each node shows a JSONPath-style reference for quick communication.
Type cues
Strings, numbers, booleans, and nulls are easy to distinguish at a glance.
Pretty output
Keep a formatted document panel ready to copy or download.
How it works
Paste JSON
Provide JSON in the input editor or upload a file.
Explore the tree
Expand and collapse nodes to inspect nested values and paths.
Copy formatted output
Use the pretty-printed output panel when you need the full document.
Example walkthroughs
User profile
Nested user data becomes a navigable tree with paths for each property.
{"user":{"id":42,"name":"Ada","tags":["admin","beta"],"meta":{"active":true}}}Mixed array
Mixed-type arrays show index paths and per-item types clearly.
[1,"two",{"three":3},null,true]
Use cases
Explore unfamiliar APIs
Open a large response and drill into only the branches you need.
Explain structure to teammates
Share node paths when discussing schema changes or bugs.
Audit nested configs
Review deep settings objects without losing context.
Frequently asked questions
Is the JSON tree built on a server?
No. Parsing and tree rendering happen entirely in your browser.
Can I see JSON paths?
Yes. Each node shows a path such as $.user.tags[0] for quick reference.
Does it work with large documents?
Yes for typical API payloads. Extremely large files may be slower because everything runs in-browser.
Related tools
JSON Formatter
Format, beautify, and minify JSON in your browser. Free, private, and instant — no upload to a server.
JSON Validator
Validate JSON instantly in your browser. See type, size, and node counts — or exact parse errors with line and column.
JSON Compare
Compare two JSON documents structurally. Find added, removed, changed, and type-changed paths — privately in your browser.
JSON Diff
Generate a unified diff of two JSON documents after pretty-printing. Ideal for reading line-level changes quickly.
JSON Escape
Escape text into a JSON string literal, or unescape a JSON string back to raw text — instantly and offline.