Data
7 toolsShift Schedule Generator
Enter employee names and shift types to auto-generate a multi-day rotating shift schedule with staggered rotation, copyable in one click.
Random Chinese Address Generator
Generate random mainland China addresses online. Pick one of 15 provinces or choose random, generate up to 50 addresses at a time and copy them with a click, for use as test or placeholder data.
Test Bank Card Number Generator
Generate Luhn-valid bank card numbers for development and testing, covering Visa, Mastercard, American Express and UnionPay prefixes. The numbers are randomly generated and are strictly for testing - they are not real cards and cannot be used for any real transaction.
Barcode Generator
Generate nine common 1D barcode formats online, including CODE128, EAN-13 and UPC-A, with adjustable bar width and height, an optional human-readable line, and SVG download.
JSON Formatter and Validator
Online JSON formatter and validator. Format JSON into readable indented text or minify it to a single line, with live syntax validation that reports the exact parsing error.
JSON Prettifier
Beautify or minify JSON, with support for relaxed JSON5 syntax such as comments, trailing commas, single-quoted strings, and unquoted keys. Output is always standard JSON.
JSON Minifier
Online JSON minifier that strips spaces, line breaks, and indentation to produce the smallest single-line JSON, then reports the size before and after along with the percentage saved.