UUID Generator — Bulk v1, v4, v7 & Nil UUIDs Online
Generate UUIDs online — v1, v4, v7, and Nil. Bulk generation up to 10,000. Free, no signup.
UUIDs
Click Generate to create UUIDs.
UUID Decoder
- Version
- Variant
- Timestamp
Cách dùng
- 1 Pick a UUID version — v4 for random, v7 for sortable time-ordered, v1 for legacy.
- 2 Set the quantity (1 to 10,000) and choose format options (case, hyphens, braces).
- 3 Click Generate. Copy individual UUIDs or copy all / download as txt, csv, or json.
Vì sao dùng công cụ này
- Generate up to 10,000 UUIDs at once — instantly.
- Supports v1 (timestamp), v4 (random), v7 (time-ordered, RFC 9562), and the Nil UUID.
- Built-in decoder: paste a UUID to inspect its version, variant, and embedded timestamp.
- Runs entirely in your browser — never sends UUIDs to a server.
- Free, no signup.
Câu hỏi thường gặp
What is the difference between UUID v4 and v7?
v4 is fully random — great for unique IDs but not sortable. v7 (RFC 9562, 2024) embeds a millisecond timestamp at the start, making UUIDs sortable by creation time while still being cryptographically random.
Are these UUIDs cryptographically secure?
Yes — generated via the Web Crypto API (crypto.getRandomValues / crypto.randomUUID). Suitable for IDs that must not collide.
Can I generate more than 10,000 at once?
The UI is capped at 10,000 to avoid freezing the browser. For larger batches, run a script or call generate() multiple times.
Does the decoder support v1 timestamps?
Yes — v1 and v7 both extract the embedded timestamp. v4 has no timestamp (it is purely random).
UUID Generator là gì?
A UUID (Universally Unique Identifier) is a 128-bit value defined by RFC 9562 (formerly RFC 4122). UUID v4 is randomly generated; v1 is timestamp + MAC-derived; v7 is time-ordered for database-friendly sorting; the Nil UUID is all zeros. A UUID Generator produces these values without coordinating with any central authority, with collision odds negligible for practical use.
UUID Generator so với các lựa chọn khác
| Tính năng | Zerethon Tools | Công cụ trực tuyến thường gặp | Ứng dụng máy tính |
|---|---|---|---|
| Bulk count | Up to 10,000 | 1–100 | Unlimited |
| v1 / v4 / v7 / Nil | All four | Usually v4 only | All four |
| Rate limits | None | Sometimes | None |
| Runs offline | Yes (after load) | No | Yes |
| Signup required | No | Sometimes | No |
UUID Generator là công cụ lập trình miễn phí của Zerethon Tools. Generate UUIDs online — v1, v4, v7, and Nil. Bulk generation up to 10,000. Free, no signup. Chạy hoàn toàn trong trình duyệt — không đăng ký, không tải lên.
- Danh mục
- Lập trình
- Giá
- Miễn phí
- Quyền riêng tư
- Chạy trên trình duyệt
- Đăng ký
- Không cần
Quyền riêng tư
Dữ liệu của bạn không bao giờ rời khỏi trình duyệt trừ khi được nêu rõ. UUID Generator chạy hoàn toàn phía client — không tải lên máy chủ, không ghi log, không theo dõi dữ liệu bạn nhập.
Kiến thức cơ bản
Hướng dẫn
Công cụ liên quan
JSON Formatter
Format, validate, and minify JSON online. Free, no signup — your data never leaves your browser.
Mở công cụSQL Formatter
Format SQL queries online — beautify MySQL, PostgreSQL, SQLite, SQL Server, Oracle, and BigQuery.
Mở công cụPassword Generator
Generate strong, cryptographically random passwords. Configurable length and character sets — runs in your browser.
Mở công cụText Case Converter
Convert text between 14 cases — UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case, CONSTANT_CASE, and more.
Mở công cụBuild, share, and grow on Zerethon Social
Free signup. Earn points, collect achievements, and connect with creators worldwide.