JWT Parser

Validate, pretty-print or minify JSON with error line:col reporting

Convert Unix timestamps to dates, auto-detect seconds/milliseconds

Convert text to/from Base64, handles Unicode correctly, URL-safe mode

URL encode/decode supporting both component and full URI modes

Online regex tester with group highlighting and match details

Batch generate UUID v4 unique IDs using cryptographic random

Chinois与 Unicode 转义序列互转，处理配置Fichier中的转义Caractère

Texte与十六Base（UTF-8 字节）互转