🎲 UUID Generator offline
Free offline UUID generator. Generate random UUIDs (v4) instantly in your browser.
Click "Generate" to create UUIDs
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. The chance of generating duplicate UUIDs is so astronomically small that it's effectively zero – making them perfect for distributed systems where centralized ID generation isn't practical.
UUIDs are standardized by RFC 4122 and are used across programming languages, databases, and systems worldwide. This tool generates UUID version 4, which uses random or pseudo-random numbers.
How to Use
Choose how many UUIDs you want, click Generate, and copy the values you need. I use this when seeding databases or creating client-side IDs without a server round trip.
Example output
550e8400-e29b-41d4-a716-446655440000 2f1d6f51-9c5e-4f0b-9c4b-7a5b3f1a2d9c
- Select the number of UUIDs to generate.
- Click Generate to create fresh IDs.
- Copy individual UUIDs or use Copy All.
- Paste them into your database, tests, or configs.
Use Cases
UUIDs are great for:
- Database primary keys in distributed systems.
- Session identifiers and correlation IDs.
- File naming to avoid collisions.
- Message tracking across services.
Tips & Best Practices
Use v4 for randomness
This tool generates UUID v4, which is the safest general-purpose choice.
Avoid UUIDs for sorting
UUIDs are not sequential. Use timestamps if ordering matters.
Batch generate for seeds
Generate multiple IDs when seeding data or creating fixtures.
Store as UUID type
Use a native UUID column type when your database supports it.
Comparison with online tools
Online UUID generators can log or rate-limit usage. TurboUtil keeps everything local and unlimited.
Online generators
- May log generated IDs
- Require internet access
- Often rate-limited
- Less predictable privacy
TurboUtil
- Client-side generation
- No uploads or tracking
- Works offline after load
- Unlimited output
FAQ
Which UUID version is this?
Version 4 (random).
Can I generate more than 100?
Generate 100 at a time and repeat as needed.
Is the generation offline?
Yes. Everything runs locally in the browser.
Are UUIDs unique?
UUID v4 is statistically unique for practical purposes.
About UUID Generator
UUID (Universally Unique Identifier) Generator creates random version 4 UUIDs. UUIDs are 128-bit numbers used to uniquely identify information in computer systems. They're commonly used as database primary keys, session identifiers, and unique resource identifiers.
Features
- ✓Generate multiple UUIDs at once (up to 100)
- ✓UUID v4 format (random generation)
- ✓RFC 4122 compliant
- ✓Copy individual UUIDs or all at once
- ✓Cryptographically secure random generation
- ✓Works offline in your browser
How to Use
- 1.Select how many UUIDs you need (1-100)
- 2.Click "Generate" to create new UUIDs
- 3.Click on any UUID to copy it individually
- 4.Use "Copy All" to copy all generated UUIDs
💡 UUID Format
UUIDs are 36 character strings in the format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
The 4 indicates version 4 (random), and y is one of 8, 9, A, or B.