Generate identifiers without sending data anywhere
PacToolbox creates identifiers directly in your browser. Use the standard UUID v4 template or design a readable pattern for order numbers, test records, coupon codes, inventory labels, and development fixtures.
Pattern characters
| Character | Meaning | Example |
|---|---|---|
x | Lowercase hexadecimal digit | 0–9, a–f |
X | Upper/lowercase letter or number | A–Z, a–z, 0–9 |
y | UUID variant character | 8, 9, a, b |
How to use it
- Choose a preset or enter a custom pattern.
- Select how many IDs to generate, up to 500 at once.
- Copy one value, copy the full list, or download a text file.
UUID v4 and custom IDs
A UUID v4 is useful when uniqueness matters across systems. A custom ID is easier for people to read and may be better for internal references. The generator uses the browser's cryptographic random-number API for both.
Frequently asked questions
Are the generated IDs stored?
No. Generation happens locally and the values disappear when you leave or refresh the page.
Can I use these IDs in production?
UUID v4 values are generated with secure browser randomness. For database keys, still enforce uniqueness at the database level.