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Utilnivo

Developer

Utilnivo

UUID Generator Without Dash

Generate UUIDs without hyphens for compact keys and legacy systems.

No registration
  • On your device

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What is a UUID generator?

A UUID generator creates random unique identifiers (v4) for databases, APIs, and test data. IDs are generated locally in your browser.

Private on your device

Your information stays on your device and is not uploaded.

Related tools

This UUID generator without dash produces 32-character hexadecimal strings without hyphen separators. Useful for MongoDB ObjectId-style keys, compact filenames, and APIs that reject dashed UUID formatting.

Hyphenless UUIDs are the same 128 bits—only presentation changes.

Some databases store UUIDs as binary(16) internally regardless of string format.

How to use this tool

Generate a UUID on the base tool, remove hyphens manually or use compact output if offered, then copy the 32-character hex string.

Worked example

Example: convert `550e8400-e29b-41d4-a716-446655440000` to `550e8400e29b41d4a716446655440000` for a Redis key namespace.

When to use this

  • APIs requiring 32-character hex IDs.
  • Compact URL paths or filename prefixes.
  • Legacy Java or PHP systems expecting no dashes.

Common examples

  • Generate v4 UUID for a new database primary key in local seed scripts.
  • Batch of five UUIDs for mock API fixtures in integration tests.
  • UUID for trace id in log correlation examples in documentation.
  • Ten UUID v4 values → seed rows for local integration test database.
  • UUID v7 batch → ordered IDs for event-sourcing demo data.

Common mistakes

  • Mixing dashed and dashless formats in the same table without normalization.
  • Truncating hex strings and breaking uniqueness guarantees.
  • Assuming dashless implies a different UUID version.

How it works

Generates UUID v4 (random) or v7 (time-ordered) identifiers using crypto-random bytes on your device. Supports bulk generation with optional uppercase and hyphen formatting.

Limitations

Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.

Privacy and file handling

Your data stays on your device and is not uploaded.

Related UUID Generator pages

These pages use the same uuid generator with examples tailored to different tasks.

FAQ

Frequently asked questions

Is a dashless UUID still RFC 4122?

Yes—the bits are identical; hyphens are optional in many serializers.

Can I add dashes back later?

Yes. Insert hyphens at 8-4-4-4-12 positions to restore standard formatting.

Case sensitivity?

Hex is case-insensitive for comparison, but stay consistent within a project.

Related pages

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