JSON Formatter

Overview

Format, view as a tree, extract one nested value by path, compare two JSON snippets, validate data against a JSON Schema, minify, validate syntax, escape JSON strings, unescape JSON strings, and stringify text directly in your browser. It is useful for API responses, copied logs, configuration snippets, nested payloads, schema checks, escaped string values, and AI-generated JSON that needs a quick syntax check.

Best for

• Pretty-printing API responses and logs.
• Viewing nested JSON objects and arrays as a readable tree.
• Extracting a nested value with a simple path such as $.items[0].id.
• Comparing two JSON snippets and listing changed paths.
• Checking whether JSON matches a pasted JSON Schema.
• Minifying JSON before pasting into configs or requests.
• Checking JSON syntax errors quickly.
• Escaping or unescaping JSON string values before pasting them into a payload.

Not for

• Automatically repairing ambiguous invalid JSON.
• Remote schema references, generated schemas, or full API contract suites.
• Running full JSONPath filter expressions, wildcards, or recursive searches.
• Merging JSON documents or generating JSON Patch output.

How it works

1. Paste JSON into the editor.
2. Choose format, view, extract path, compare, schema validation, minify, syntax validation, escape, unescape, or stringify.
3. Copy the cleaned output or fix reported errors.

Limits and privacy

The tool validates JSON syntax, supports simple dot/bracket paths, lists path-based comparison differences, and validates pasted JSON Schema locally in the browser. It does not fetch remote schema references, infer missing data, silently rewrite invalid structures, merge documents, or run full JSONPath queries.

Common uses

• Pretty-print compact JSON so it is easier to read.
• Inspect nested keys, array lengths, and values in a tree-style output.
• Extract a single nested value by path before copying it into a ticket, test, or config.
• Compare two API responses or config versions before copying a changed value.
• Validate generated JSON against required fields and types in a JSON Schema.
• Minify formatted JSON before pasting it into a config or request body.
• Catch missing commas, unclosed brackets, and invalid JSON syntax.
• Turn text with quotes and line breaks into a JSON-safe string literal.

Useful facts

• Tiny Work Tools JSON Formatter runs locally in the browser.
• It reports parsing errors instead of silently changing invalid JSON.