Does JSON Typeof upload my file or text to Tool-You servers?

No. JSON Typeof runs in this browser tab. Files stay on the device. Limit note: Must be valid JSON. Size depends on root type.

Should I use JSON Formatter instead of JSON Typeof?

Use JSON Typeof when you need Root JSON type plus size hint. Use JSON Formatter when you need Pretty-print or minify JSON with indent and optional key sort. They share a category (Developer) but not the same job.

JSON Typeof

Root JSON type plus size hint.

JSON.parse then reports type. Size is array length, object key count, string length, or 1/0 for scalars/null. Unlike JSON Formatter this does not pretty-print. Invalid JSON fails.

What JSON Typeof does

JSON.parse then reports type. Size is array length, object key count, string length, or 1/0 for scalars/null. Unlike JSON Formatter this does not pretty-print. Invalid JSON fails.

Practical limit for JSON Typeof: Must be valid JSON. Size depends on root type. That is why output can differ from heavy desktop Developer software. Read the tool-specific note again: JSON.parse then reports type. Size is array length, object key count, string length, or 1/0 for scalars/null. Unlike JSON Formatter this does not pretty-print. Invalid JSON fails.

How to use JSON Typeof

Keep this tab on JSON Typeof (/developer/json-typeof). Pasting into the wrong Developer tool (for example JSON Formatter) changes the job.
Paste or type the input JSON Typeof expects. Path hint: developer · json typeof. Root JSON type plus size hint.
Apply the JSON Typeof action only. JSON Minify is a different transform (Minify JSON with lengths.). JSON.parse then reports type. Size is array length, object key count, string length, or 1/0 for scalars/null. Unlike JSON Formatter this does not pretty-print. Invalid JSON fails.
Copy the output of JSON Typeof if you need it elsewhere. Size/complexity still follows: Must be valid JSON. Size depends on root type.
If the text job is actually Pretty-print or minify JSON with indent and optional key sort., leave JSON Typeof and open JSON Formatter.

When not to use JSON Typeof

Skip JSON Typeof when a neighbor tool matches better — start with JSON Formatter or JSON Minify — or when the description already warns the job will fail. In the tool’s own words: JSON.parse then reports type. Size is array length, object key count, string length, or 1/0 for scalars/null. Unlike JSON Formatter this does not pretty-print. Invalid JSON fails.

Questions about JSON Typeof

What does JSON Typeof do that other Developer pages on this site do not?: JSON.parse then reports type. Size is array length, object key count, string length, or 1/0 for scalars/null. Unlike JSON Formatter this does not pretty-print. Invalid JSON fails. Short version: Root JSON type plus size hint.
Does JSON Typeof upload my file or text to Tool-You servers?: No. JSON Typeof runs in this browser tab. Files stay on the device. Limit note: Must be valid JSON. Size depends on root type.
Should I use JSON Formatter instead of JSON Typeof?: Use JSON Typeof when you need Root JSON type plus size hint. Use JSON Formatter when you need Pretty-print or minify JSON with indent and optional key sort. They share a category (Developer) but not the same job.
What are the limits of JSON Typeof?: Must be valid JSON. Size depends on root type. Also: JSON.parse then reports type. Size is array length, object key count, string length, or 1/0 for scalars/null. Unlike JSON Formatter this does not pretty-print. Invalid JSON fails.