UUID Generator

• UUID generator supporting batch generation of all versions V1/V3/V4/V5 (up to 100 at a time), with customizable format (uppercase/lowercase, with or without hyphens), one-click copy or download as a TXT file
• V3/V5 support namespace configuration (DNS/URL/OID/X500 or a custom UUID) and a name prefix, producing reproducible results; V1 is timestamp-based and V4 is fully random
• Ideal for database primary keys, API keys, distributed IDs, session identifiers and more — no download or installation, free and ad-free, with everything computed locally in your browser

1. Open the tool page — no installation needed
2. Pick the UUID version and quantity (1–100), and optionally enable uppercase display or remove hyphens; for V3/V5 you can also set a namespace and name prefix
3. Click "Generate UUID" to list results instantly; use "Copy All" or "Download" to grab them, or copy each one individually

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device

Free online UUID generation tool, supports batch generation of all UUID versions V1/V3/V4/V5, with customizable format (uppercase/lowercase, with or without hyphens), one-click copy or download. Suitable for database primary keys, API keys, distributed IDs, session identifiers and other scenarios, no download or installation required, free and ad-free.

Open the tool page — no installation needed Pick the UUID version and quantity (1–100), and optionally enable uppercase display or remove hyphens; for V3/V5 you can also set a namespace and name prefix Click "Generate UUID" to list results instantly; use "Copy All" or "Download" to grab them, or copy each one individually

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device

Yes, UUID Generator is completely free. No download or installation required — it runs right in your browser.