How do I convert a UUID to plain hex?

Paste a standard RFC 4122 UUID and click Convert. The tool removes hyphens and outputs the 32-character hex string.

Can I convert multiple UUIDs at once?

Yes. Paste one UUID per line, and the tool converts each line into its hex-only representation.

Does this tool validate UUID format?

Yes. It checks that each input matches the standard 8-4-4-4-12 hex UUID format before converting.

Is this tool private?

Yes. All conversion happens in your browser; nothing is sent to a server.

Free · Client-side · RFC 4122

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

All conversion happens locally in your browser. Nothing is sent to any server.

UUID (one per line)

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.

550e8400-e29b-41d4-a716-446655440000 → 550e8400e29b41d4a716446655440000

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.

Overview

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

550e8400-e29b-41d4-a716-446655440000

550e8400 time_low
32 bits

e29b time_mid
16 bits

41d4 time_hi & version
16 bits

a716 clock_seq
16 bits

446655440000 node
48 bits

This tool removes hyphens and outputs the raw 32-character hex string used by many systems.

Versions

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

Live Examples

Example UUIDs

Click an example to convert it to hex.

How It Works

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.

Private / client-side Instant conversion RFC 4122 compliant No external dependencies

Common Use Cases

Common reasons to convert UUIDs to hex include:

Compact storage (no hyphens) API/DB fields that expect plain hex Script-friendly string IDs Interoperability with systems that use raw hex

FAQ

Frequently Asked Questions

Answers to common questions about UUID hex conversion.

Removing hyphens produces a compact 32-character hex string that is easier to store and use in systems that expect plain hex identifiers.

Yes. Paste one UUID per line and click Convert. Each valid UUID is converted, and invalid lines are flagged by line number.

The tool accepts both upper- and lowercase UUIDs, but it requires the standard hyphenated format. It will output lowercase hex without hyphens.

Yes. This tool runs entirely in your browser. Nothing is sent to a server or stored externally.

UUID to Hex

UUID to Hex

What is a UUID?

UUID Format

UUID Versions Compared

Example UUIDs

How This UUID → Hex Tool Works

Common Use Cases

Frequently Asked Questions

Complete UUID Tools Directory

UUID Generation

UUID Validation

UUID Parsing

UUID Formatting

UUID Conversion

Developer UUID Generators

Alternative ID Generators

25+ UUID & ID Tools

UUID to Hex

UUID to Hex

What is a UUID?

UUID Format

UUID Versions Compared

Example UUIDs

How This UUID → Hex Tool Works

Common Use Cases

Frequently Asked Questions

Why remove hyphens from a UUID?

Can I convert multiple UUIDs at once?

What if my UUID is uppercase or missing hyphens?

Is this tool secure?

Complete UUID Tools Directory

UUID Generation

UUID Validation

UUID Parsing

UUID Formatting

UUID Conversion

Developer UUID Generators

Alternative ID Generators

25+ UUID & ID Tools