Learn About UUIDs
Whether you are new to UUIDs or looking to deepen your understanding, our guides cover everything from the basics to advanced topics like security and database design.
-
What is a UUID? A Complete Guide
Learn what UUIDs are, how they work, and why they are essential in modern software development.
-
UUID Versions Explained: v1, v4, v5, v7
A deep comparison of UUID versions — when to use v1, v4, v5, or v7 in your applications.
-
How to Use UUIDs with the Notion API
Extract and convert Notion database IDs and page IDs to proper UUID format for the Notion API.
-
Why Databases Use UUIDs as Primary Keys
Comparing UUIDs vs auto-increment integers as primary keys in PostgreSQL, MySQL, and distributed systems.
-
UUIDs and Security: What Developers Need to Know
Security implications of using UUIDs — predictability, information leakage, and best practices.
Try Our Tools
Ready to put your knowledge into practice? Use our free tools:
- UUID Formatter — Format raw 32-character strings into standard UUIDs
- UUID Generator — Generate v1, v4, v5, and v7 UUIDs
- Notion UUID Converter — Extract UUIDs from Notion URLs