Developer Utilities

UUID, ULID & Hash Generator

Generate cryptographically secure UUIDs (v4/v1), sortable ULIDs, compact NanoIDs, and client-side SHA cryptographic hashes in bulk.

Formatting & Bulk Options
Generated Identifiers (0)
100% client-side cryptographically generated
Client-Side Cryptographic Hash Calculator
Compute SHA-256, SHA-512, and SHA-1 hashes instantly
SHA-256 (256-bit):
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SHA-512 (512-bit):
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SHA-1 (Legacy 160-bit):
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About this tool

Comprehensive documentation & audit utility guide
Verified Utility

Universally Unique Identifiers (UUIDs) and sortable ULIDs provide 128-bit collision-resistant keys for distributed database records, API sessions, and messaging queues. This tool uses the browser's cryptographically secure random number generator (`crypto.getRandomValues`) to produce authentic identifiers and computes Web Crypto SHA hashes with 100% local privacy.

How it works
1
Choose Identifier Format

Select between UUID v4 (random), UUID v1 (timestamped), ULID (lexicographically sortable), or compact NanoID.

2
Customize Batch Formatting

Adjust quantity (up to 100), casing, hyphens, quotes, braces, and custom delimiter separators.

3
Copy or Download

Copy the batch list to your clipboard with one click or export as a .txt plain-text file.

What it checks
UUID v4 RFC 4122 compliant cryptographically random generation
ULID Crockford Base32 millisecond-sortable identifiers
Compact URL-safe NanoID generation
Client-side SHA-256, SHA-512, and SHA-1 hashing via Web Crypto API
Zero server transmission — 100% private in-browser computation