UUID Generator
Generate single or bulk Universally Unique Identifiers (UUID) from v1 to v7. 100% offline.
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Nhấn "Tạo UUID" để sinh ngẫu nhiên UUID dựa trên cấu hình thuật toán đã chọn.
UUID Generator Online - Generate Bulk UUID v1 to v7 Instantly
Generate single or bulk random UUIDs (v1, v3, v4, v5, v7) online. Custom output format with uppercase/lowercase and hyphen options. 100% offline and secure.
Key Features
- All Versions Supported: Generate UUID v1 (timestamp), v3/v5 (MD5/SHA1 hash), v4 (fully random), and v7 (time-ordered).
- Bulk Generation: Create up to 500 UUIDs in a single click with sub-millisecond execution.
- Format Options: Easily strip hyphens or convert characters to UPPERCASE to fit your schema requirements.
How to Generate UUIDs
- Select your desired UUID version (v4 is standard for general use).
- Specify the number of UUIDs to create.
- Check or uncheck the formatting options (Hyphens and UPPERCASE).
- Click the "Generate UUIDs" button.
- Click "Copy All" to copy the entire list to your clipboard.
Frequently Asked Questions (FAQs)
What makes UUID v7 special?
UUID v7 is a relatively new standard that embeds a millisecond-precision timestamp at its beginning. This makes UUIDs naturally sortable over time, which drastically improves database indexing performance.
How secure is the random number generator here?
We utilize cryptographically secure pseudo-random number generator (CSPRNG) APIs available in modern browsers, ensuring the highest level of randomness and unpredictability.