JSON formatter
Format valid JSON into readable, indented text.
/tools/json-formatterLOCAL
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REGISTRY FAMILY / IMPLEMENTED
Browser-local developer utilities with explicit parser, transformation, and verification boundaries.
Format valid JSON into readable, indented text.
Check whether text is syntactically valid JSON.
Minify valid JSON without changing its parsed value.
Encode Unicode text as Base64 with browser-native APIs, locally.
Decode Base64 into Unicode text locally.
Generate one or more UUID v4 values locally in the browser.
Generate a SHA-256 digest for text locally.
Decode a JWT header and payload without verifying it.
Test a JavaScript regular expression against text.
Validate and indent XML locally with browser parsing.
Parse and format YAML locally with an explicit YAML parser.
Convert header-row CSV text into a JSON array locally.
Convert a JSON array of flat objects into CSV locally.
Percent-encode text for use as a URL component locally.
Decode a percent-encoded URL component locally.
Encode text as HTML character references locally.
Decode HTML character references into text locally.
Parse an absolute URL into origin, path, query, fragment, and credentials-free fields.
Parse URL query parameters and repeated keys locally.
Generate sortable ULID identifiers locally with browser randomness.
Generate a selected SHA text digest locally with Web Crypto.
Generate a SHA-1 text digest locally with Web Crypto.
Generate a SHA-512 text digest locally with Web Crypto.
Generate a keyed HMAC text digest locally with Web Crypto.
Convert HEX, RGB, and HSL color notation locally.
Conservatively remove comments and optional CSS whitespace locally.
Conservatively remove simple JavaScript comments and optional whitespace locally.
Conservatively remove comments and optional whitespace between HTML tags locally.
Format a common SQL statement locally without running it.
Build a five-field cron expression from explicit minute, hour, day, month, and weekday fields.
Inspect a five-field cron expression and its field values locally.
Parse supplied HTTP header lines and flag repeated or sensitive names locally.
Classify common browser, engine, operating-system, and device markers in a supplied User-Agent string.
Look up common file extensions in a bundled local MIME reference map.
Look up common HTTP status codes in a bundled local reference map.
Evaluate a bounded simple JSONPath against valid JSON locally.
Inspect a pasted OpenAPI or Swagger document locally for version, servers, routes, parameters, schemas, and security declarations.
Validate JSON against a pasted local Draft 7 JSON Schema and inspect readable instance-path errors.
Compare two JSON documents locally and list added, removed, changed, and unchanged JSON-pointer paths.
Draft and, after an explicit warning, send a direct browser-side HTTP request without a UtilityForge proxy.
Run a structural YAML syntax check locally in the browser.
Convert a JSON value into plain-TypeScript YAML locally.
Convert a YAML subset into JSON locally.
Check whether supplied XML is well-formed using the browser parser.
Render a JSON value as a structural plain-text tree locally.
Escape arbitrary text into a quoted JSON string literal locally.
Decode a JSON string literal back into plain text locally.
Escape regex metacharacters so the input becomes a literal pattern.
Append percent-encoded parameters to a base URL locally.
Encode Unicode text as RFC 4648 Base32 locally.
Decode RFC 4648 Base32 text into UTF-8 locally.
Remove HTML tags from supplied text locally.
List the code point of each character in supplied text locally.
Decode decimal code points back into a string locally.
Look up a bundled set of common named HTML entities locally.
Normalize TOML key/value formatting locally.