Small utilities for formatting, validating, converting, and preparing data during development.
Paste JSON and format it with consistent indentation after a short debounce delay.
Paste JSON to verify that generated mock data is valid before using it in tests, demos, or API fixtures.
Convert sample JSON into TypeScript interfaces so frontend developers can type API responses and mock data quickly.
Convert CSV rows into JSON arrays for mock data imports, quick API fixtures, and prototype datasets.
Convert JSON arrays into CSV output for download-style mock data workflows and spreadsheet inspection.
Generate UUIDs for mock users, orders, products, records, and other fixture identifiers.
Convert Unix timestamps into ISO dates, local dates, seconds, and milliseconds for API, log, and test data workflows.
Encode and decode Base64 strings for tokens, payloads, headers, and API test values.
Encode and decode URL components for query strings, redirects, API debugging, and copied request values.
Decode JWT header and payload JSON while debugging auth flows, API tests, and mock tokens.
Test regular expressions against sample validation text and fixture data.