# ProjectDiscovery: Free Open Source Alternative to AWS GuardDuty, Splunk

Canonical: https://caniforkit.com/fork/projectdiscovery
Last updated: 2026-11-07

ProjectDiscovery (Open Source, Open Source) replaces AWS GuardDuty, Splunk. Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives.

## Tool Specifications
- **Tool Name**: ProjectDiscovery
- **Type**: Open Source Project
- **License**: Open Source
- **Official Website**: https://projectdiscovery.io
- **GitHub Repository**: https://github.com/projectdiscovery/nuclei
- **GitHub Stars**: ★ 32.7k
- **Runs On**: Local
- **Maintenance Status**: nov 2026
- **Platforms**: desktop, cross-platform, one-click install
- **Data Storage**: All application data lives locally on your own machine.
- **Installation**: Clone https://github.com/projectdiscovery/nuclei or deploy with Docker Compose
- **Setup Requirements**: Download the native package or installer for your operating system.
- **The Catch / Limitation**: Community-driven open source project without dedicated enterprise SLAs.

## Paid SaaS Applications Replaced (2)
Replacing these paid tools with ProjectDiscovery saves up to $70/mo ($840/yr) in software subscriptions:

| Replaced Software | Category | SaaS Price | Comparison Guide |
| --- | --- | --- | --- |
| [AWS GuardDuty](https://caniforkit.com/aws-guardduty) | [monitoring](https://caniforkit.com/category/monitoring) | $35/mo | [Compare AWS GuardDuty vs ProjectDiscovery](https://caniforkit.com/vs/aws-guardduty-vs-projectdiscovery) |
| [Splunk](https://caniforkit.com/splunk) | [monitoring](https://caniforkit.com/category/monitoring) | $35/mo | [Compare Splunk vs ProjectDiscovery](https://caniforkit.com/vs/splunk-vs-projectdiscovery) |

## Frequently Asked Questions

### Is ProjectDiscovery free and open source?
ProjectDiscovery is an open source tool licensed under Open Source that runs on local. Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives.

### What is the trade-off or limitation of using ProjectDiscovery?
Community-driven open source project without dedicated enterprise SLAs.

## Related

- [Self-Hosted Open Source Directory](https://caniforkit.com/self-hosted)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Software Categories Directory](https://caniforkit.com/categories)
- [Homepage](https://caniforkit.com)