SunLicenseLicense key generator
Random, unique license keys for your own software. Pick a format by how it looks, then get as many as you need.
- Runs in your browser
- Up to 1,000 at a time
- Text or CSV
- XXXX-XXXX-XXXX-XXXX
Want SunLicense to check these keys, with a device limit?Import them into a free account
Questions, answered
Are these keys random enough to use?
Yes. They come from your browser's cryptographic random number generator (crypto.getRandomValues), with every character equally likely. The default format has about 79 bits of randomness, the same as SunLicense's own keys.
Are my keys stored or sent anywhere?
No. The generator runs entirely in your browser: the keys never leave this page, and nothing is logged.
Is a license key enough to stop people sharing my software?
No. A key on its own can be copied to anyone. Check it online when your software starts, with a device limit, so a shared or refunded key stops working. That's what SunLicense does, on a free plan.
Can I use these keys with SunLicense?
Yes. Create a free account and send us your keys as a CSV through Products, Import, Import from another license system, and we import them. Or let SunLicense issue keys itself: on Lite and Standard in your own format, with key designs.
Can it make keys for software I didn't write?
No. It makes random keys for your own products. They don't unlock anyone else's software.
Key formats SunLicense issues itself: key designs.