Nuclei is used to send requests across targets based on a template leading to zero false positives and providing effective scanning for known paths. Main use cases for nuclei are during initial reconnaissance phase to quickly check for low hanging fruits or CVEs across targets that are known and easily detectable. It uses [retryablehttp-go library](https://github.com/projectdiscovery/retryablehttp-go) designed to handle various errors and retries in case of blocking by WAFs, this is also one of our core modules from custom-queries.
We have also [open-sourced a dedicated repository](https://github.com/projectdiscovery/nuclei-templates) to maintain various type of templates, we hope that you will contribute there too. Templates are provided in hopes that these will be useful and will allow everyone to build their own templates for the scanner. Checkout the guide at [**GUIDE.md**](https://github.com/projectdiscovery/nuclei-templates/blob/master/GUIDE.md) for a primer on nuclei templates.
The installation is easy. You can download the pre-built binaries for your platform from the [Releases](https://github.com/projectdiscovery/nuclei/releases/) page. Extract them using tar, move it to your `$PATH`and you're ready to go.
This will run the tool against all the hosts in `urls.txt` with all the templates in the `path-to-templates` directory and returns the matched results.
Nuclei supports glob expression ending in `.yaml` meaning multiple templates can be easily passed to be executed one after the other. Please refer to [this guide](https://github.com/projectdiscovery/nuclei-templates/blob/master/GUIDE.md) to build your own custom templates.
nuclei is made with 🖤 by the [projectdiscovery](https://projectdiscovery.io) team. Community contributions have made the project what it is. See the **[Thanks.md](https://github.com/projectdiscovery/nuclei/blob/master/THANKS.md)** file for more details. Do also check out these similar awesome open-source projects that may fit in your workflow:
