Skip to main content

UUID version 4 Generator

Random UUID v4 identifiers generate karein. Iss me 122 bits ki pure entropy hoti hai, jo ise unique database keys aur session IDs ke liye industry standard banati hai.
Custom string formats ki zaroorat hai?

Custom rules ke saath random strings generate karein.

Random String Generator Kholein

Related Tools


UUID version 7 Generator
UUID v7 Decoder
Random Strings Generator
Unix Timestamp Converter

UUID v4 kya hai?

UUID v4 Universally Unique Identifier standard ka sabse zyaada use hone wala version hai. Doosre versions ke ulte jo timestamps ya hardware MAC addresses use karte hain, v4 cryptographically strong random numbers se generate hota hai. ID ke 128 bits me se 122 bits purely random hote hain, jisse collision ki probability ਲਗਭਗ zero ho jaati hai.

Character Layout

Segment Characters Description
Random Part 1 f47ac10b-58cc Pure random data ke pehle 48 bits.
Version 4 Random UUID identify karne ke liye 4 par fixed.
Random Part 2 372 Random data ke 12 aur bits.
Variant a 8, 9, a ya b par fixed (RFC 4122).
Random Part 3 567-0e02b2c3d479 Random data ke aakhiri 62 bits.

Main Advantages

  • 🕵️ Total Randomness: Koi embedded timestamp nahi; ye batana namumkin hai ki ye kab ya kahan generate hua.
  • 🌌 High Collision Resistance: $2^{122}$ combinations bina kisi duplicate ke har second billions of IDs allow karte hain.
  • 🔌 Stateless Generation: System clock sync ki zarurat nahi hoti, jisse ye highly portable banta hai.
  • 🌍 Universal Support: Lagbhag har modern programming language me native support.

Kaise use karein

  1. Batch Selection: Choose karein ki aapko kitni random IDs chahiye.
  2. Generate karein: Humara server 122 random bits ke liye secure entropy source use karta hai.
  3. Deploy karein: Copy karein aur tokens, API keys ya primary keys ke roop me use karein.

Frequently Asked Questions (FAQ)

v4 tab use karein jab aap nahi chahte ki logon ko creation order pata chale. Security tokens ya password reset links ke liye ye behtar hai jahan anonymity zaroori hai.

Haan. Kyunki ye cryptographically secure randomness use karta hai, UUID v4 ko 'unguessable' aur public-facing secure identifiers ke liye safe maana jata hai.

Nahi. Kyunki v4 me koi timestamp data nahi hota, isliye ise time-sortable v7 me convert nahi kiya ja sakta. Dono alag-alag architectural purposes ke liye hain.

Jabki UUID v4 privacy ke liye badhiya hai, UUID v7 database indexing aur performance ke liye behtar hai
We use analytics cookies to understand site usage and improve tools. See our Privacy Policy.