An API just handed you one endless line of JSON. This free json viewer turns that wall of text into a readable, collapsible tree, with keys, strings, numbers, booleans, and nulls each shown distinctly, so you can find one value without scrolling through thousands of lines. Paste JSON or drop in a .json file — everything is parsed in your browser, nothing is uploaded, and no account is needed. The tree is for reading and navigating only; expanding or collapsing a branch never changes your data.
How to use this json viewer
Three quick steps — no signup, no cost.
Paste raw JSON text or drop a .json file onto the tool. It is parsed on your device.
Expand and collapse objects and arrays, and search for a key or value to jump to it.
Copy a single value, a whole branch, or the formatted JSON for use in your code.
Why a json viewer reads what a text box cannot
Structure first, scrolling second.
Fold away branches you do not care about and focus on the part of the response that matters.
Objects, arrays, and value types are visually distinct, so nesting depth is obvious without counting brackets.
Invalid JSON is reported with its position instead of silently showing nothing, so a missing comma is quick to fix.
Parsing happens locally, which matters when a response contains tokens, user data, or internal API details.
JSON Viewer FAQs
Short, direct answers.
A formatter adds indentation to raw text, while a viewer renders a collapsible tree you can navigate branch by branch.
No. The tree is read-only, and expanding or collapsing nodes never alters the underlying data.
Yes. Minified JSON on a single line is parsed and displayed as a structured tree.
The viewer reports the error and its position so you can fix the missing comma, bracket, or quote and try again.
Yes. It runs in your browser with no account and no signup.
Related Tools
More free tools that work the same way — right in your browser.
Turn JSON data into a CSV table in your browser.
CSV to JSON ConverterTurn a CSV table into JSON data in your browser.
JSON to XML ConverterTurn JSON data into XML in your browser.
XML to JSON ConverterTurn XML data into JSON in your browser.
Try the related tools above, or go back to the Convertion homepage for more free converters.
