مولّد UUID
توليد UUID v4 دفعة واحدة
Output
Generate UUID v4 values for keys, IDs, and tests
UUID v4 is the standard for unique identifiers when you don't want a centralized counter — primary keys, request IDs, idempotency tokens, session identifiers. Generating them in the browser uses the native crypto API for proper randomness, with options to format with or without hyphens and uppercase or lowercase to match your storage conventions.
Use the generator when you need to
Mint database primary keys
Generate UUIDs for new records so your IDs stay unique across services without a central counter.
Create idempotency or request IDs
Tag every API request with a UUID so retries are safe and traces are easy to correlate.
Bulk-generate IDs for tests or seed data
Produce dozens of IDs at once for fixtures, mock data, or sample database rows.
How to generate UUIDs quickly
- 1
Set the quantity (1 to 100) and choose hyphenation and case options.
- 2
Click Generate to produce UUID v4 values using the browser's secure random source.
- 3
Copy the list or download a text file for use in code or fixtures.
Keep going
Hash text or files
Generate SHA-256/384/512 digests when you need a deterministic identifier instead of random.
Convert Unix timestamps
Pair generated IDs with timestamps when you need ordered, traceable records.
Decode tokens
Inspect the JTI and other claims when troubleshooting auth tokens.
Generate full mock records
Build realistic test records that include UUIDs alongside names and emails.
Common UUID workflows
Generate a batch of UUIDs to seed primary keys when bringing up a new database table.
Use the same generated UUIDs across runs to make a flaky test deterministic.
Generate stable IDs for webhook delivery so retries don't double-process events.
أدوات ذات صلة
الأسئلة الشائعة
UUID v4 عشوائي عبر crypto.randomUUID() عند التوفر — مناسب لمفاتيح قواعد البيانات والطلبات.
نعم من 1 إلى 100؛ كل معرف في سطر للنسخ أو التنزيل.
الأحرف الكبيرة لـ A–F؛ إزالة الشرطات تعطي 32 رمزاً سداسياً متصلاً.
لا — التوليد في المتصفح فقط.