UUID to Hex
Convert UUIDs into non-hyphenated hex strings instantly. Great for compact IDs, storage, and interoperability with systems that accept raw hex.
UUID to Hex
Powered byJavaScript & RFC 4122
All conversion happens locally in your browser. Nothing is sent to any server.
Paste UUIDs and click Convert to get hex output.
Why convert UUIDs to hex?
Many systems store UUIDs as plain hex strings (without hyphens) for compactness and interoperability. Converting to this format makes UUIDs easier to store, index, and use in scripts.
Retains all data
The hex output is the same 128-bit value as the UUID, just without hyphens. Nothing is lost.
Supports multiple UUIDs
Paste several UUIDs (one per line) and convert them all at once. Invalid lines are flagged with line numbers.
Client-side only
Conversion happens entirely in your browser; nothing is sent to a server.
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit value standardized by RFC 4122. It is usually shown as a 36-character string with hyphens.
Converting a UUID to hex removes the hyphens while keeping the full 128-bit value intact.
- 128 total bits (16 bytes)
- Standard UUID: 36 chars (32 hex + 4 hyphens)
- Hex output: 32 hex digits (no hyphens)
- Useful for compact storage and string-based systems
UUID Format
32 bits
16 bits
16 bits
16 bits
48 bits
This tool removes hyphens and outputs the raw 32-character hex string used by many systems.
UUID Versions Compared
All UUID versions are 128 bits, so they all map to the same 32-character hex value.
| Version | Generation Method | Use Case | Requires |
|---|---|---|---|
| v1 | Timestamp + MAC address | Time-ordered logging | Network interface |
| v2 | DCE security (UID/GID) | Legacy DCE systems | System identity |
| v3 | MD5 hash of namespace+name | Deterministic IDs | Namespace + name |
| v4 | Random | General purpose — UUID v4 Generator → | None |
| v5 | SHA-1 hash of namespace+name | Deterministic IDs (secure) | Namespace + name |
| v6 | Reordered timestamp (RFC 9562) | Sortable time-based IDs | Clock + node |
| v7 | Unix timestamp + random (RFC 9562) | Database-friendly sortable IDs | None |
Example UUIDs
Click an example to convert it to hex.
How This UUID → Hex Tool Works
This tool validates each input as a standard RFC 4122 UUID, removes the hyphens, and outputs the 32-character hex string. It supports multiple UUIDs in one go.
Everything runs locally in your browser; no data is sent to any server.
Common Use Cases
Common reasons to convert UUIDs to hex include:
Frequently Asked Questions
Answers to common questions about UUID hex conversion.
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