Nuclei
Nuclei is a fast, customizable vulnerability scanner powered by the global security community and built on a simple YAML-based DSL, enabling collaboration to tackle trending vulnerabilities on the internet. It helps you find vulnerabilities in your applications, APIs, networks, DNS, and cloud configurations. observed · 2026-10-18
Health v2 · maintenance only
96/100
- Activity 100
- Release rhythm 89
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 20
- age_days: 2391
- days_rel: 73
- days_push: 3
- n_releases_24m: 28
Adoption not part of the score
32091 stars · 3969 forks observed · 2026-10-18
What it is AI-extracted, prompt v1, taxonomy v1, 2026-10-05, confidence 0.97
Nuclei is a high‑performance, open‑source vulnerability scanner written in Go. It uses simple YAML‑based templates to detect security issues across applications, APIs, networks, DNS and cloud configurations.
Use cases
- scan web applications for known vulnerabilities
- detect misconfigurations in cloud resources
- enumerate subdomain takeover and DNS takeover risks
- run bulk vulnerability scans across large IP ranges
- customize security checks with user‑written YAML templates
- integrate Nuclei into CI/CD pipelines for automated security testing
- perform fast, repeatable scans of network services and protocols
When to choose
- You need a fast, command‑line scanner that can be scripted and automated.
- You want to leverage a large, community‑maintained library of vulnerability templates.
- You require custom, YAML‑based checks to cover unique or emerging attack vectors.
- You plan to integrate scanning into DevOps workflows or CI/CD pipelines.
When to avoid
- You require a graphical user interface for vulnerability management.
- You need extensive compliance reporting or ticketing system integration out of the box.
- Your environment cannot run Go binaries or Docker containers.
Facets
cli-tool · maturity active
http-client parser testing security penetration-testing windows cli yaml-templates fast customizable community-driven open-source vulnerability-scanner linux macos docker kubernetes
6 sources
- readme: https://github.com/projectdiscovery/nuclei · fetched 2026-10-18 · 330cd63369c9
- homepage: https://docs.projectdiscovery.io/tools/nuclei · fetched 2026-09-21 · 155eeadbeecf
- site_page: https://docs.projectdiscovery.io/opensource/nuclei/faq · fetched 2026-09-21 · 7829b621947c
- site_page: https://docs.projectdiscovery.io/ · fetched 2026-09-21 · f8adb7e49951
- site_page: https://docs.projectdiscovery.io/quickstart · fetched 2026-09-21 · 3dad04b1713f
- site_page: https://docs.projectdiscovery.io/opensource/nuclei/install · fetched 2026-09-21 · 248d369e518d
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| projectdiscovery/nuclei | main | 96 |
| projectdiscovery/nuclei-templates | backend | 99 |
| projectdiscovery/nuclei-burp-plugin | plugin | 85 |
| projectdiscovery/nuclei-ai-extension | plugin | 10 |
| projectdiscovery/nuclei-action | plugin | 82 |
| projectdiscovery/nuclei-templates-labs | examples | 33 |
| projectdiscovery/nuclei-templates-ai | plugin | 38 |
| projectdiscovery/nuclei-docs | docs | 10 |
For agents
markdown · JSON · MCP: product_card(name="projectdiscovery/nuclei")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem