Generators & Utilities
Create unique IDs for databases, APIs or test files. Choose fully random UUID v4, or v7, which is ordered by time and friendly to database indexes.
Free · no sign-up · runs in your browser · updated
Version
Choose the version (v4 or v7) and how many UUIDs you need.
Set the format: uppercase, no hyphens, or with curly braces.
Copy them one at a time or all at once.
A UUID v4 consists of 122 random bits and is the most widely used; the chance of a collision is negligible for practical purposes. A UUID v7 puts a millisecond timestamp at the start, so its value rises over time. That makes inserts into a database index more efficient and makes it easy to sort by creation time, but the timestamp is visible to anyone who reads the ID.
UUIDs are designed to be unique, not secret. Don’t use them as authorization tokens or passwords. For that, use a long random token designed for security, for example one from the Password Generator.
In practice, yes. A UUID v4 has 122 random bits, so the odds of two UUIDs matching are tiny, even if you create billions of them.
Basically none. GUID is the term Microsoft uses for the same format as a UUID.
Because its values are ordered by time, new rows are added at the end of the index rather than at random spots in the middle. That reduces fragmentation and usually speeds up writes compared with random UUIDs.
Yes. The random part comes from your browser’s crypto.getRandomValues, not Math.random.
No. UUIDs are created in your browser and never leave your device.
Create strong random passwords with a cryptographic generator.
Open toolCompute MD5, SHA-1, SHA-256, SHA-512 and bcrypt from text or files, and verify hashes.
Open toolEncode and decode text or files to Base64, including the URL-safe variant.
Open toolNeed more than tools?
These tools are only a small part of what Tipamedia can build. Tell us what you need and we will help you work out the next step.