Search for a tool or command
Format, validate, transform and inspect JSON - everything you need to work with JSON, running entirely in your browser.
Pretty-print JSON with configurable indentation and instant validation.
Strip whitespace to shrink JSON to the smallest valid payload.
Validate JSON syntax and pinpoint the exact line and column of any error.
Turn minified or tangled JSON into clean, readable, well-indented text.
Recursively sort object keys alphabetically for stable, diffable JSON.
Flatten nested JSON into single-level dot-notation key paths.
Rebuild nested JSON from flat dot-notation keys.
Escape any string so it can be safely embedded inside JSON.
Turn a JSON-escaped string back into readable raw text.
Convert a JSON value into an escaped JSON string literal.
Recursively strip every null value from a JSON document.
Remove empty strings, arrays, objects, and nulls throughout JSON.
Compare two JSON documents and see a precise structural diff.
Deep-merge two or more JSON objects into one.
Explore JSON as a collapsible, interactive tree.
Analyze JSON size, depth, key counts, and type distribution.
Query JSON with JSONPath expressions and see live results.
Infer a JSON Schema from a sample JSON document.
Validate JSON against a JSON Schema using AJV.
Every tool in this category runs entirely inside your browser. Your data is never uploaded to a server, so you can safely work with API keys, tokens, customer records and other sensitive payloads. There is no sign-up, nothing to install, and the whole toolkit keeps working offline once loaded.