ChekakStore/Công cụ/UUID v4Bộ tạo🆔UUID v4Random UUID (RFC 4122 v4)Mở trên tools.chekak.storetools.chekak.store/tool/uuidRandom UUID (RFC 4122 v4)Công cụ liên quan🔐Password GeneratorConfigurable password generator🎰Random StringRandom string from charset📜Lorem IpsumLorem ipsum placeholder text📋Markdown TableMarkdown table builder🌳ASCII TreeIndentation to ASCII tree🖼️Placeholder ImagePlaceholder image URL builder