Popular developer utilities

Use the JSON formatter to format, minify, validate and inspect JSON.

Compare two JSON documents and inspect structural differences.

Convert small config examples between JSON and YAML.

Format and validate XML, SOAP and SVG snippets.

Useful when comparing legacy XML payloads with JSON-oriented clients.

Format copied SQL snippets for support tickets.

Format common code snippets for debugging.

Encode and decode URL components and query values.

Break a URL into scheme, host, path, query parameters and fragments.

Encode and decode Base64 strings locally.

Inspect image Data URLs and MIME hints before embedding assets.

Decode JWT payloads and separate decoding from signature verification.

Parse browser, OS and device hints from user-agent strings.

Generate UUIDs and validate UUID/GUID format.

Create random passwords for test data and local development.

Generate SHA digests for checksums and debugging.

Create QR codes for URLs, test payloads and local device testing.

Generate simple barcode test values for labels and forms.

Generate placeholder text for layouts and test fixtures.

Look up common content types and file extension behavior.

Review HTTP status codes for API and browser debugging.

Inspect ASCII control characters and decimal, hex and character forms.

Preview Markdown copied from docs, issues and API examples.

Compare logs, snippets and configuration files.

Test JavaScript regular expressions against sample text.