UUID Generator

Use UUID Generator to create random uuid v4 or guid offline. Generate unique id in bulk, copy in one click — fast, private.

Need a uuid generator that works in one click? This small browser tool creates random uuid v4 values instantly — right where you work, without opening yet another website. UUID Generator is made for developers, QA engineers, data analysts, anyone who needs a unique id for a database row, an api key draft, a test fixture or a file name. Click the icon: a fresh identifier is already on your clipboard. ➤ Instant v4 values — created automatically on open ➤ Bulk mode: 10, 25, 50 or 100 ids at once ➤ Side panel with history of every generated id ➤ Format switch: hyphens on or off, uppercase, braces ➤ One-click copy for a single value or a whole batch How this uuid generator works 1. Click the extension icon — a new value appears, copied right away. 2. Paste it anywhere with Ctrl+V. That is it. 3. Need more? Open its side panel to generate uuid values in bulk, then pick from history. Why developers pick this uuid gen Most tools make you open a website, wait for banners to load, hunt for a right button. This one lives in your browser toolbar, so a fresh identifier stays one click away — in the middle of coding, debugging or writing a migration. Keyboard-first too: press Enter for one more value, keep both hands on your keys. Fits any workflow - Keep it pinned next to your address bar for one-click access - Open its side panel when a task needs dozens of ids - Use bulk copy to fill seed files, SQL dumps or spreadsheets - Switch formats once — settings remember your choice Teams adopt it quickly: nothing to configure, nothing to sign into. Pin it once, share a link with colleagues, everyone gets the same simple tool — same 128-bit randomness, same formats, same one-click copy. A quick note on versions Version 4 is a random flavor most teams need: 122 bits of randomness make collisions practically impossible. That is why this uuid v4 generator focuses on v4 — a format also produced by libraries in javascript, by python's uuid4(), by java's UUID.randomUUID() or go packages. uuid or guid? A guid is simply a Microsoft-flavored name of a universally unique identifier. Values produced here work as a guid in C#, .NET, SQL Server, anywhere else a 36-character hexadecimal identifier is expected. No conversion needed. 💡 Practical ways to use a generated id 💡 Primary keys in postgres, mysql or mongodb tables 💡 Idempotency tokens for an api request or webhook 💡 Unique file names for uploads, exports, caches 💡 Test data, mocks, fixtures in javascript or python 💡 Correlation ids for logs, tracing, message queues 💡 Placeholder values for a future api key or session token Privacy comes first Unlike a typical uuid generator website, this extension never sends anything anywhere. Every value is created locally by a crypto module of your browser — a cryptographically strong random source. No accounts, no tracking, no network calls at all. Works offline too. Once installed, this uuid generator keeps running without a connection — on a plane, in a train, in a meeting room with bad wifi. ❓ Frequently asked questions ❓ Is this uuid generator safe for production ids? Yes. Values come from crypto.getRandomValues, a randomness source browsers rely on for security tokens. ❓ Can I create them in bulk? Yes. Pick 10, 25, 50 or 100 in its side panel, copy them all at once — each on its own line, ready for code or a spreadsheet. ❓ Which formats are supported? Hyphens on or off, uppercase or lowercase, braces or plain. Set it once, every new value follows your choice. Bulk output respects your format too, so a batch of 100 arrives ready to paste. ❓ What does a uuid example look like? Something like 3f6a2c1e-8b4d-4f2a-9c3e-5d7a1b9e2f40: five groups of hexadecimal digits separated by hyphens. Tap the icon, get your own. ❓ Does it work as a guid generator? Yes. A guid plus a v4 value share an identical 128-bit layout, so output drops straight into .NET, MSSQL or Azure tooling. Small tool, real time saver Whether you call it a guid or just a unique identifier, switching tabs to grab one breaks your flow dozens of times a day. Keep a random uuid one click away instead: generate, paste, move on. Install UUID Generator — stop hunting for a generator website every time you need an id. Your future self, knee-deep in code halfway through a deploy, will thank you. One click, one id, zero detours.