UUID Generator (v4)
Generate secure RFC-4122 version 4 UUIDs. Works offline in your browser.
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Tip: v4 UUIDs are random; each line above is one UUID.
Generate unique identifiers instantly with FreeToolConvert’s Free Online UUID Generator (v4). Our tool allows developers and programmers to create random UUIDs (Universally Unique Identifiers) compliant with UUID version 4 (RFC 4122) standards. With FreeToolConvert, you can generate UUIDs online for free — no API keys, software installation, or registration required. Each UUID is randomly generated using secure algorithms, ensuring global uniqueness and collision-free identifiers for databases, APIs, software development, and web projects. Whether you need one or multiple UUIDs, our UUID v4 Generator Tool provides fast, reliable, and secure results in seconds. Simplify your workflow with FreeToolConvert’s UUID Generator, your trusted tool for generating unique identifiers online.
Fast & Easy UUID Generator (v4)
Generate random, secure, RFC 4122–compliant UUID v4 values instantly. Create unique identifiers for databases, apps, sessions, and software systems — all with a single click.
Generate True Random UUIDs With Precision
Our UUID Generator (v4) uses cryptographically secure randomness to produce globally unique identifiers. Each UUID you generate is:
128-bit long
Fully random
RFC 4122 compliant
Collision-resistant
Universally unique
Perfect for development, database indexing, session IDs, tokens, and large-scale systems.
File Protection Guaranteed
Your generated UUIDs are never stored or logged. All generation happens securely with TLS encryption, and any temporary data is automatically deleted from our servers within one hour to ensure complete privacy.
Generate UUIDs Online — No Software Needed
The tool works entirely in your browser on Windows, macOS, Linux, and mobile. No installation, no dependency, no command-line tools — just click and get your UUID instantly.
Generate One or Multiple UUIDs
Choose how many UUIDs you need:
- Single UUID
- Bulk UUID generation (10, 50, 100+)
- Copy all with one click
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Export UUIDs easily
Perfect for developers working on APIs, databases, or automation scripts.
Ideal for Developers, Engineers & Tech Teams
Use UUID v4 for:
- Database primary keys
- Distributed systems
- API authentication
- Session identifiers
- Token generation
- Cloud services
- Software development
UUIDs ensure global uniqueness without relying on centralized systems.
Secure, Cloud-Based Generation
All UUIDs are generated securely in the cloud using high-entropy randomness. No CPU load, no installation, and no risk of duplication — just fast, reliable UUID creation.
How To Generate UUID v4 Online
- Choose the number of UUIDs you want.
- Click Generate UUID.
- Copy or download your unique identifiers.
- Done!
UUID Generator (v4) FAQs
Yes — UUID v4 uses cryptographically secure random values.
Absolutely — bulk generation is supported.
No — they are deleted immediately after generation.
Yes — all generated UUIDs follow the official v4 specification.
Yes — it works on Mac, Windows, Linux, Android, and iOS.
Yes! Generate unlimited UUIDs at no cost.