Free UUIDGenerator.net Alternative
UUIDGenerator.net is a popular online UUID generation tool that supports bulk generation and provides an HTTP-based API for programmatic access. The service is free to use and offers UUID generation in multiple versions (v1, v4, v7) with both plaintext and JSON response formats. While the site is functional and reliable, it requires uploading requests to their servers for API access and likely includes advertising to support the free service. If you prefer a completely client-side solution where UUIDs are generated in your browser with no server requests, Fixie's UUID Generator offers the same functionality with additional features like v5 namespace-based UUIDs, validation, and zero privacy concerns.
Try UUID Generator Free →UUID Generator vs UUIDGenerator.net
| Feature | Fixie UUID Generator | UUIDGenerator.net |
|---|---|---|
| Price | Free forever | Free (likely ad-supported) |
| Signup Required | No | No |
| Privacy / Data Handling | 100% client-side — nothing sent to servers | API requires HTTP requests to their servers |
| UUID Versions | v1, v4, v5, v7 | v1, v4, v7 |
| Bulk Generation | Up to 1,000 UUIDs at once | Yes, bulk generation supported |
| API Access | No API (everything runs in browser) | Yes, HTTP-based API (GET only) |
| Format Options | Standard, uppercase, no dashes, braces, URN | Plain text, JSON |
| Validation | Yes, with version and variant detection | Not mentioned |
| Ads | None | Likely present (not confirmed) |
Why Choose Fixie?
UUIDGenerator.net is a solid, reliable tool that's been serving developers for years. The HTTP-based API is convenient for programmatic UUID generation, and the bulk generation feature works well. If you need server-side UUID generation via API calls, UUIDGenerator.net provides exactly that functionality for free.
However, for most use cases, generating UUIDs client-side is faster, more private, and equally secure. Fixie's UUID Generator runs 100% in your browser using crypto.getRandomValues() for cryptographic randomness — the same approach recommended by security best practices. Your browser never sends any data to our servers, which means zero privacy concerns and instant generation with no network latency.
Fixie also includes features that UUIDGenerator.net doesn't offer: v5 namespace-based UUIDs (deterministic, perfect for deduplication), built-in validation that detects UUID version and variant, multiple format options (braces, URN, uppercase, no-dash), and visual segment coloring for easier reading. Everything runs offline once the page loads, so you can generate UUIDs even without internet access. If you need an API for server-side generation, UUIDGenerator.net is the right choice. If you want faster, more private client-side generation with extra features, Fixie delivers that in a cleaner, ad-free interface.
How to Use UUID Generator
Step 1: Open the UUID Generator
Visit fixie.tools/uuid — no signup, no API key, works instantly in any browser.
Step 2: Select UUID Version
Choose from v1 (time-based), v4 (random — default), v5 (namespace-based), or v7 (time-ordered). Each version serves different use cases: v4 for general-purpose IDs, v7 for database-friendly sortable IDs, v5 for deterministic deduplication.
Step 3: Generate Single or Batch UUIDs
Click "Generate UUID" for a single ID, or enter a count (1-1,000) and click "Generate" in the batch section to create multiple UUIDs at once. All generation happens instantly in your browser.
Step 4: Copy, Download, or Validate
Copy individual UUIDs with one click, download batch results as a .txt file, or paste any UUID into the validator to check its format, version, and variant. Choose from multiple output formats (standard, uppercase, no-dash, braces, URN) to match your needs.