The latest articles on DEV Community by chubiao huang (MR HUANG) (@chubiao_huangmrhuang_). https://dev.to/chubiao_huangmrhuang_ https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3128140%2F81fa61ee-8417-4c41-9994-951217b99e4d.jpg https://dev.to/chubiao_huangmrhuang_ en chubiao huang (MR HUANG) Sat, 13 Sep 2025 16:11:12 +0000 https://dev.to/chubiao_huangmrhuang_/why-use-our-free-online-uuid-generator-amj https://dev.to/chubiao_huangmrhuang_/why-use-our-free-online-uuid-generator-amj <p>✅ Instant <a href="https://jwtsecrets.com/tools/uuid-generator" rel="noopener noreferrer">uuid generation</a> (uuid4, uuid v1, uuid v5)<br> ✅ Works across JavaScript, Python, Node.js, Java, C#, Golang<br> ✅ Supports random uuid, guid, and universal unique identifier generation<br> ✅ No installation required – generate uuid online easily<br> ✅ Uses secure Web Crypto API for randomness (uuid4)<br> FAQ about UUIDs and GUIDs<br> What is a uuid? A universally unique identifier (UUID) is a 128-bit string that helps identify information uniquely without coordination.<br> What is a guid? GUID (Globally Unique Identifier) is Microsoft's term for UUID; functionally, they are the same.<br> How do I generate uuid online? Use this tool to instantly get uuid4, uuid v1 or uuid v5 online, copy and use anywhere.<br> Is uuid secure? UUID v4 is based on random numbers, using secure crypto sources; uuid v1 uses timestamp + MAC, so avoid exposing sensitive info.<br> Can I use uuid in databases? Yes! PostgreSQL uuid, Java uuid, Node js uuid, and more are widely used as primary keys.</p>